message stringlengths 2 28.7k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 21 109k | cluster float64 7 7 | __index_level_0__ int64 42 217k |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
RedDreamer has an array a consisting of n non-negative integers, and an unlucky integer T.
Let's denote the misfortune of array b having length m as f(b) — the number of pairs of integers (i, j... | instruction | 0 | 4,392 | 7 | 8,784 |
Yes | output | 1 | 4,392 | 7 | 8,785 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
RedDreamer has an array a consisting of n non-negative integers, and an unlucky integer T.
Let's denote the misfortune of array b having length m as f(b) — the number of pairs of integers (i, j... | instruction | 0 | 4,393 | 7 | 8,786 |
Yes | output | 1 | 4,393 | 7 | 8,787 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
RedDreamer has an array a consisting of n non-negative integers, and an unlucky integer T.
Let's denote the misfortune of array b having length m as f(b) — the number of pairs of integers (i, j... | instruction | 0 | 4,394 | 7 | 8,788 |
Yes | output | 1 | 4,394 | 7 | 8,789 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
RedDreamer has an array a consisting of n non-negative integers, and an unlucky integer T.
Let's denote the misfortune of array b having length m as f(b) — the number of pairs of integers (i, j... | instruction | 0 | 4,395 | 7 | 8,790 |
No | output | 1 | 4,395 | 7 | 8,791 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
RedDreamer has an array a consisting of n non-negative integers, and an unlucky integer T.
Let's denote the misfortune of array b having length m as f(b) — the number of pairs of integers (i, j... | instruction | 0 | 4,396 | 7 | 8,792 |
No | output | 1 | 4,396 | 7 | 8,793 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
RedDreamer has an array a consisting of n non-negative integers, and an unlucky integer T.
Let's denote the misfortune of array b having length m as f(b) — the number of pairs of integers (i, j... | instruction | 0 | 4,397 | 7 | 8,794 |
No | output | 1 | 4,397 | 7 | 8,795 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
RedDreamer has an array a consisting of n non-negative integers, and an unlucky integer T.
Let's denote the misfortune of array b having length m as f(b) — the number of pairs of integers (i, j... | instruction | 0 | 4,398 | 7 | 8,796 |
No | output | 1 | 4,398 | 7 | 8,797 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day Kefa found n baloons. For convenience, we denote color of i-th baloon as si — lowercase letter of the Latin alphabet. Also Kefa has k friends. Friend will be upset, If he get two baloons of the same color. Kefa want to give out all b... | instruction | 0 | 4,715 | 7 | 9,430 |
Tags: brute force, implementation
Correct Solution:
```
d = {}
n, k = map(int, input().split())
s = input()
for i in s:
d[i] = d.get(i, 0)+1
# print(d)
m = max(d.values()) #2
for key in d: # a b
if d[key] == m:#
if d[key] > k:
print('NO')
else:
print('YES')
break... | output | 1 | 4,715 | 7 | 9,431 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One day Kefa found n baloons. For convenience, we denote color of i-th baloon as si — lowercase letter of the Latin alphabet. Also Kefa has k friends. Friend will be upset, If he get two baloons... | instruction | 0 | 4,723 | 7 | 9,446 |
Yes | output | 1 | 4,723 | 7 | 9,447 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One day Kefa found n baloons. For convenience, we denote color of i-th baloon as si — lowercase letter of the Latin alphabet. Also Kefa has k friends. Friend will be upset, If he get two baloons... | instruction | 0 | 4,724 | 7 | 9,448 |
Yes | output | 1 | 4,724 | 7 | 9,449 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One day Kefa found n baloons. For convenience, we denote color of i-th baloon as si — lowercase letter of the Latin alphabet. Also Kefa has k friends. Friend will be upset, If he get two baloons... | instruction | 0 | 4,725 | 7 | 9,450 |
Yes | output | 1 | 4,725 | 7 | 9,451 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One day Kefa found n baloons. For convenience, we denote color of i-th baloon as si — lowercase letter of the Latin alphabet. Also Kefa has k friends. Friend will be upset, If he get two baloons... | instruction | 0 | 4,726 | 7 | 9,452 |
Yes | output | 1 | 4,726 | 7 | 9,453 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One day Kefa found n baloons. For convenience, we denote color of i-th baloon as si — lowercase letter of the Latin alphabet. Also Kefa has k friends. Friend will be upset, If he get two baloons... | instruction | 0 | 4,727 | 7 | 9,454 |
No | output | 1 | 4,727 | 7 | 9,455 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One day Kefa found n baloons. For convenience, we denote color of i-th baloon as si — lowercase letter of the Latin alphabet. Also Kefa has k friends. Friend will be upset, If he get two baloons... | instruction | 0 | 4,728 | 7 | 9,456 |
No | output | 1 | 4,728 | 7 | 9,457 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One day Kefa found n baloons. For convenience, we denote color of i-th baloon as si — lowercase letter of the Latin alphabet. Also Kefa has k friends. Friend will be upset, If he get two baloons... | instruction | 0 | 4,729 | 7 | 9,458 |
No | output | 1 | 4,729 | 7 | 9,459 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One day Kefa found n baloons. For convenience, we denote color of i-th baloon as si — lowercase letter of the Latin alphabet. Also Kefa has k friends. Friend will be upset, If he get two baloons... | instruction | 0 | 4,730 | 7 | 9,460 |
No | output | 1 | 4,730 | 7 | 9,461 |
Provide a correct Python 3 solution for this coding contest problem.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the balls red, and paint the other blue.
Afterwards, the 2N ba... | instruction | 0 | 4,907 | 7 | 9,814 |
"Correct Solution:
```
N = int(input())
Ball = []
for i in range(N):
x, y = map(int, input().split())
x, y = min(x, y), max(x, y)
Ball.append((x, y))
Ball.sort() # ソートしておく
X = [x for x, y in Ball]
Y = [y for x, y in Ball]
# 全体のMIN, MAX
MIN = X[0]
MAX = max(Y)
# 確定2玉を別グループに
ans = (max(X) - MIN) * (MAX - ... | output | 1 | 4,907 | 7 | 9,815 |
Provide a correct Python 3 solution for this coding contest problem.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the balls red, and paint the other blue.
Afterwards, the 2N ba... | instruction | 0 | 4,908 | 7 | 9,816 |
"Correct Solution:
```
import sys
from operator import itemgetter
inf = 1 << 30
def solve():
n = int(sys.stdin.readline())
# r_max = MAX, b_min = MIN にしたとき
r_max = b_max = 0
r_min = b_min = inf
p = []
for i in range(n):
xi, yi = map(int, sys.stdin.readline().split())
... | output | 1 | 4,908 | 7 | 9,817 |
Provide a correct Python 3 solution for this coding contest problem.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the balls red, and paint the other blue.
Afterwards, the 2N ba... | instruction | 0 | 4,909 | 7 | 9,818 |
"Correct Solution:
```
import sys
sys.setrecursionlimit(10 ** 6)
int1 = lambda x: int(x) - 1
p2D = lambda x: print(*x, sep="\n")
def II(): return int(sys.stdin.readline())
def MI(): return map(int, sys.stdin.readline().split())
def LI(): return list(map(int, sys.stdin.readline().split()))
def LLI(rows_number): return ... | output | 1 | 4,909 | 7 | 9,819 |
Provide a correct Python 3 solution for this coding contest problem.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the balls red, and paint the other blue.
Afterwards, the 2N ba... | instruction | 0 | 4,910 | 7 | 9,820 |
"Correct Solution:
```
import sys
input=sys.stdin.readline
n=int(input())
l=[list(map(int,input().split())) for i in range(n)]
for i in range(n):
l[i].sort()
ans=[]
l.sort()
B1=[];R1=[]
for i in range(n):
B1.append(l[i][0])
R1.append(l[i][1])
ans.append((max(B1)-min(B1))*(max(R1)-min(R1)))
Bleft=[]
Bright=[]
Rl... | output | 1 | 4,910 | 7 | 9,821 |
Provide a correct Python 3 solution for this coding contest problem.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the balls red, and paint the other blue.
Afterwards, the 2N ba... | instruction | 0 | 4,911 | 7 | 9,822 |
"Correct Solution:
```
import sys
from operator import itemgetter
inf = 1 << 30
def solve():
n = int(sys.stdin.readline())
# r_max = MAX, b_min = MIN にしたとき
r_max = b_max = 0
r_min = b_min = inf
p = []
for i in range(n):
xi, yi = map(int, sys.stdin.readline().split())
... | output | 1 | 4,911 | 7 | 9,823 |
Provide a correct Python 3 solution for this coding contest problem.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the balls red, and paint the other blue.
Afterwards, the 2N ba... | instruction | 0 | 4,912 | 7 | 9,824 |
"Correct Solution:
```
# coding: utf-8
# 整数の入力
#a = int(raw_input())
# スペース区切りの整数の入力
import heapq
N = int(input())
Rmax = 0
Rmin = 1000000001
Bmax = 0
Bmin = 1000000001
data = sorted([sorted(list(map(int, input().split()))) for i in range(N)],key=lambda x:x[0])
tempBlues = sorted([d[1] for d in data])
tempReds = [d[... | output | 1 | 4,912 | 7 | 9,825 |
Provide a correct Python 3 solution for this coding contest problem.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the balls red, and paint the other blue.
Afterwards, the 2N ba... | instruction | 0 | 4,913 | 7 | 9,826 |
"Correct Solution:
```
n=int(input())
x,y=zip(*sorted(sorted(map(int,input().split())) for _ in range(n)))
p=max(range(n),key=lambda i:y[i])
r=a=x[-1]
b=d=10**9
for i in range(p):
a=max(a,y[i])
b=min(b,y[i])
d=min(d,a-min(b,x[i+1]))
print(min((x[-1]-x[0])*(y[p]-min(y)),(y[p]-x[0])*d))
``` | output | 1 | 4,913 | 7 | 9,827 |
Provide a correct Python 3 solution for this coding contest problem.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the balls red, and paint the other blue.
Afterwards, the 2N ba... | instruction | 0 | 4,914 | 7 | 9,828 |
"Correct Solution:
```
# coding: utf-8
# Your code here!
import sys
read = sys.stdin.read
readline = sys.stdin.readline
n, = map(int,readline().split())
xy = []
for _ in range(n):
x,y = map(int,readline().split())
if x>y: x,y = y,x
xy.append((x,y))
xy.sort()
xx = []
yy = []
for x,y in xy:
xx.append(... | output | 1 | 4,914 | 7 | 9,829 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the bal... | instruction | 0 | 4,915 | 7 | 9,830 |
Yes | output | 1 | 4,915 | 7 | 9,831 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the bal... | instruction | 0 | 4,916 | 7 | 9,832 |
Yes | output | 1 | 4,916 | 7 | 9,833 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the bal... | instruction | 0 | 4,917 | 7 | 9,834 |
Yes | output | 1 | 4,917 | 7 | 9,835 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the bal... | instruction | 0 | 4,918 | 7 | 9,836 |
Yes | output | 1 | 4,918 | 7 | 9,837 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the bal... | instruction | 0 | 4,919 | 7 | 9,838 |
No | output | 1 | 4,919 | 7 | 9,839 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the bal... | instruction | 0 | 4,920 | 7 | 9,840 |
No | output | 1 | 4,920 | 7 | 9,841 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the bal... | instruction | 0 | 4,921 | 7 | 9,842 |
No | output | 1 | 4,921 | 7 | 9,843 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N bags, each containing two white balls. The i-th box contains two balls with integers x_i and y_i written on them, respectively.
For each of these bags, you will paint one of the bal... | instruction | 0 | 4,922 | 7 | 9,844 |
No | output | 1 | 4,922 | 7 | 9,845 |
Provide a correct Python 3 solution for this coding contest problem.
We have an N×N checkerboard.
From the square at the upper left corner, a square that is i squares to the right and j squares below is denoted as (i, j). Particularly, the square at the upper left corner is denoted as (0, 0).
Each square (i, j) such... | instruction | 0 | 4,923 | 7 | 9,846 |
"Correct Solution:
```
N = int(input())
MAX = 170000
ans = []
for i in range(1,N,2):
for j in range(0,N,2):
if (i//2)%3 == 0:
ans.append((i,j))
elif (i//2)%3 == 1:
if (j//2)%2 == 0: ans.append((i,j))
else:
if (j//2)%2 == 1: ans.append((i,j))
for i in [0,... | output | 1 | 4,923 | 7 | 9,847 |
Provide a correct Python 3 solution for this coding contest problem.
We have an N×N checkerboard.
From the square at the upper left corner, a square that is i squares to the right and j squares below is denoted as (i, j). Particularly, the square at the upper left corner is denoted as (0, 0).
Each square (i, j) such... | instruction | 0 | 4,924 | 7 | 9,848 |
"Correct Solution:
```
n=int(input())
ans=[]
for i in range(n-1):
if i%2:
ans+=[(i,0)]
for i in range(n-1):
if i%6==1:
for j in range(2,n):
if j%2==0:
ans+=[(i,j)]
if i%6==4:
for j in range(n):
if j%2:
ans+=[(i,j)]
for j in range(n):
if(n-1+j)%2:
ans+=[(n-1,j)]
print(... | output | 1 | 4,924 | 7 | 9,849 |
Provide a correct Python 3 solution for this coding contest problem.
We have an N×N checkerboard.
From the square at the upper left corner, a square that is i squares to the right and j squares below is denoted as (i, j). Particularly, the square at the upper left corner is denoted as (0, 0).
Each square (i, j) such... | instruction | 0 | 4,925 | 7 | 9,850 |
"Correct Solution:
```
n = int(input())
ans_list = []
for i in range(n):
if i % 2 == 1:
ans_list.append((i,0))
if i % 6 == 1:
for j in range(2,n,2):
ans_list.append((i,j))
elif i % 6 == 4:
for j in range(1,n,2):
ans_list.append((i,j))
if n % 3 != 2:
for i... | output | 1 | 4,925 | 7 | 9,851 |
Provide a correct Python 3 solution for this coding contest problem.
We have an N×N checkerboard.
From the square at the upper left corner, a square that is i squares to the right and j squares below is denoted as (i, j). Particularly, the square at the upper left corner is denoted as (0, 0).
Each square (i, j) such... | instruction | 0 | 4,926 | 7 | 9,852 |
"Correct Solution:
```
n = int(input())
odd = [item for item in range(3, n+1, 2)]
even = [item for item in range(2, n+1, 2)]
ans = []
added = [0] * n
for i in range(2, n+1, 2):
ans.append((1, i))
for i in range(2, n+1, 3):
if i % 2 == 0:
for item in odd:
ans.append((item, i))
else:
... | output | 1 | 4,926 | 7 | 9,853 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have an N×N checkerboard.
From the square at the upper left corner, a square that is i squares to the right and j squares below is denoted as (i, j). Particularly, the square at the upper le... | instruction | 0 | 4,927 | 7 | 9,854 |
No | output | 1 | 4,927 | 7 | 9,855 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have an N×N checkerboard.
From the square at the upper left corner, a square that is i squares to the right and j squares below is denoted as (i, j). Particularly, the square at the upper le... | instruction | 0 | 4,928 | 7 | 9,856 |
No | output | 1 | 4,928 | 7 | 9,857 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have an N×N checkerboard.
From the square at the upper left corner, a square that is i squares to the right and j squares below is denoted as (i, j). Particularly, the square at the upper le... | instruction | 0 | 4,929 | 7 | 9,858 |
No | output | 1 | 4,929 | 7 | 9,859 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have an N×N checkerboard.
From the square at the upper left corner, a square that is i squares to the right and j squares below is denoted as (i, j). Particularly, the square at the upper le... | instruction | 0 | 4,930 | 7 | 9,860 |
No | output | 1 | 4,930 | 7 | 9,861 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n blocks arranged in a row and numbered from left to right, starting from one. Each block is either black or white.
You may perform the following operation zero or more times: choose two adjacent blocks and invert their colors (w... | instruction | 0 | 5,145 | 7 | 10,290 |
Tags: greedy, math
Correct Solution:
```
n=int(input())
s=list(input())
b=[]
a=[]
for i in range(n):
a.append(s[i])
b.append(s[i])
c=[]
for i in range(n-1):
if(a[i]=="W"):
continue
else:
a[i]="W"
c.append(i+1)
if(a[i+1]=="W"):
a[i+1]="B"
else:
... | output | 1 | 5,145 | 7 | 10,291 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n blocks arranged in a row and numbered from left to right, starting from one. Each block is either black or white.
You may perform the following operation zero or more times: choose two adjacent blocks and invert their colors (w... | instruction | 0 | 5,146 | 7 | 10,292 |
Tags: greedy, math
Correct Solution:
```
# HEY STALKER
from collections import Counter
n = int(input())
l = list(input())
x = Counter(l)
if x['B'] % 2 and x['W'] % 2:
print(-1)
elif x['B'] == n or x['W'] == n:
print(0)
else:
k = []
b = ''
w = ''
if not x['B'] % 2:
b = 'B'
w = 'W'... | output | 1 | 5,146 | 7 | 10,293 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n blocks arranged in a row and numbered from left to right, starting from one. Each block is either black or white.
You may perform the following operation zero or more times: choose two adjacent blocks and invert their colors (w... | instruction | 0 | 5,147 | 7 | 10,294 |
Tags: greedy, math
Correct Solution:
```
n=int(input())
s=list(input())
x='B'
def check(l):
prev=l[0]
for i in range(len(l)):
if l[i]!=prev:
return False
return True
count=0
ans=[i for i in s]
l=[]
for i in range(n-1):
if s[i]!=x:
s[i]=x
if s[i+1]=='B':
s[... | output | 1 | 5,147 | 7 | 10,295 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n blocks arranged in a row and numbered from left to right, starting from one. Each block is either black or white.
You may perform the following operation zero or more times: choose two adjacent blocks and invert their colors (w... | instruction | 0 | 5,148 | 7 | 10,296 |
Tags: greedy, math
Correct Solution:
```
'''input
3 2
192
'''
# A coding delight
from sys import stdin
def counter(c):
if c == 'B':
return 'W'
return 'B'
# main starts
n = int(stdin.readline().strip())
string = list(stdin.readline().strip())
temp = string[:]
# changing to B
ans = []
for i in range(n ... | output | 1 | 5,148 | 7 | 10,297 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n blocks arranged in a row and numbered from left to right, starting from one. Each block is either black or white.
You may perform the following operation zero or more times: choose two adjacent blocks and invert their colors (w... | instruction | 0 | 5,149 | 7 | 10,298 |
Tags: greedy, math
Correct Solution:
```
n=int(input())
s=input()
t1=s.count('B')
t2=s.count('W')
a=[x for x in s]
if t1%2==1 and t2%2==1:
print("-1")
else:
c=0
a1=[]
b="#"
if t2%2==0:
b="W"
else:
b="B"
for i in range(n-1):
if(a[i]==b):
c+=1
if(a[i+1]=='W'):
a[i+1]='B'
else:
a[i+1]='W'
... | output | 1 | 5,149 | 7 | 10,299 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n blocks arranged in a row and numbered from left to right, starting from one. Each block is either black or white.
You may perform the following operation zero or more times: choose two adjacent blocks and invert their colors (w... | instruction | 0 | 5,150 | 7 | 10,300 |
Tags: greedy, math
Correct Solution:
```
n=int(input())
r=list(input())
for t in range(len(r)):
if r[t]=='B':
r[t]=1
else:
r[t]=-1
g=0
m=0
l=[]
jk=[]
o=list(r)
for i in range(0,n-1):
if r[i]==-1:
r[i]=-r[i]
r[i+1]=-r[i+1]
l+=[i+1]
if r[n-1]!=1:
g=1
for q in range(0,n-1):
if o[q]==1:
o[q]=-o[q]
o[q+1]... | output | 1 | 5,150 | 7 | 10,301 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n blocks arranged in a row and numbered from left to right, starting from one. Each block is either black or white.
You may perform the following operation zero or more times: choose two adjacent blocks and invert their colors (w... | instruction | 0 | 5,151 | 7 | 10,302 |
Tags: greedy, math
Correct Solution:
```
n=int(input())
s=list(input())
w=s.count('W')
b=n-w
f = lambda c: 'B' if c=='W' else 'W'
if not b&1:
l = []
for i in range(n-1):
if s[i]=='B':
s[i],s[i+1]=f(s[i]),f(s[i+1])
l.append(i+1)
le=len(l)
print(le)
if le:
prin... | output | 1 | 5,151 | 7 | 10,303 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n blocks arranged in a row and numbered from left to right, starting from one. Each block is either black or white.
You may perform the following operation zero or more times: choose two adjacent blocks and invert their colors (w... | instruction | 0 | 5,152 | 7 | 10,304 |
Tags: greedy, math
Correct Solution:
```
t = int(input())
s = input()
white = []
white_count = 0
temp = list(s)
for j in range(len(s)-1):
if(temp[j]=='B'):
white_count+=1
temp[j+1]='W' if temp[j+1]=='B' else 'B'
white.append(j+1)
if(temp[-1]=='W'):
print(white_count)
if(len(white)!=0... | output | 1 | 5,152 | 7 | 10,305 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n blocks arranged in a row and numbered from left to right, starting from one. Each block is either black or white.
You may perform the following operation zero or more times: choose... | instruction | 0 | 5,153 | 7 | 10,306 |
Yes | output | 1 | 5,153 | 7 | 10,307 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n blocks arranged in a row and numbered from left to right, starting from one. Each block is either black or white.
You may perform the following operation zero or more times: choose... | instruction | 0 | 5,154 | 7 | 10,308 |
Yes | output | 1 | 5,154 | 7 | 10,309 |
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