message
stringlengths
2
433k
message_type
stringclasses
2 values
message_id
int64
0
1
conversation_id
int64
113
108k
cluster
float64
12
12
__index_level_0__
int64
226
217k
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a non-decreasing array of non-negative integers a_1, a_2, …, a_n. Also you are given a positive integer k. You want to find m non-decreasing arrays of non-negative integers b_1, b_2, …, b_m, such that: * The size of b_i is ...
instruction
0
104,622
12
209,244
Tags: constructive algorithms, greedy, math Correct Solution: ``` # ---------------------------iye ha aam zindegi--------------------------------------------- import math import random import heapq, bisect import sys from collections import deque, defaultdict from fractions import Fraction import sys import threading f...
output
1
104,622
12
209,245
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a non-decreasing array of non-negative integers a_1, a_2, …, a_n. Also you are given a positive integer k. You want to find m non-decreasing arrays of non-negative integers b_1, b_2, …, b_m, such that: * The size of b_i is ...
instruction
0
104,623
12
209,246
Tags: constructive algorithms, greedy, math Correct Solution: ``` import io, os input = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline from math import ceil t = int(input()) for _ in range(t): n, k = map(int, input().split()) a = list(map(int, input().split())) if len(set(a)) <= k: prin...
output
1
104,623
12
209,247
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a non-decreasing array of non-negative integers a_1, a_2, …, a_n. Also you are given a positive integer k. You want to find m non-decreasing arrays of non-negative integers b_1, b_2, …, b_m, such that: * The size of b_i is ...
instruction
0
104,624
12
209,248
Tags: constructive algorithms, greedy, math Correct Solution: ``` import math from sys import stdin from sys import setrecursionlimit setrecursionlimit(100000) def put(): return map(int, stdin.readline().split()) for _ in range(int(input())): # n=int(input()) n,k=put() l=(list(put())) if(len(set(l))<=k): print(...
output
1
104,624
12
209,249
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a non-decreasing array of non-negative integers a_1, a_2, …, a_n. Also you are given a positive integer k. You want to find m non-decreasing arrays of non-negative integers b_1, b_2, …, b_m, such that: * The size of b_i is ...
instruction
0
104,625
12
209,250
Tags: constructive algorithms, greedy, math Correct Solution: ``` from math import ceil t = int(input()) for _ in range(t): n, k = map(int, input().split()) A = set(map(int, input().split())) uniq = len(A) if k == 1: if uniq == 1: print(1) else: print(-1) e...
output
1
104,625
12
209,251
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a non-decreasing array of non-negative integers a_1, a_2, …, a_n. Also you are given a positive integer k. You want to find m non-decreasing arrays of non-negative integers b_1, b_2, …, b_m, such that: * The size of b_i is ...
instruction
0
104,626
12
209,252
Tags: constructive algorithms, greedy, math Correct Solution: ``` import math for _ in range(int(input())): n, k = map(int, input().split()) a = list(map(int, input().split())) if k == 1: if len(set(a)) == 1: print(1) else: print(-1) continue count = 0...
output
1
104,626
12
209,253
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a non-decreasing array of non-negative integers a_1, a_2, …, a_n. Also you are given a positive integer k. You want to find m non-decreasing arrays of non-negative integers b_1, b_2, …, b_m, such that: * The size of b_i is ...
instruction
0
104,627
12
209,254
Tags: constructive algorithms, greedy, math Correct Solution: ``` from sys import stdin,stdout import math,bisect from collections import Counter,deque,defaultdict L=lambda:list(map(int, stdin.readline().strip().split())) M=lambda:map(int, stdin.readline().strip().split()) I=lambda:int(stdin.readline().strip()) S=lambd...
output
1
104,627
12
209,255
Provide tags and a correct Python 3 solution for this coding contest problem. You are given a non-decreasing array of non-negative integers a_1, a_2, …, a_n. Also you are given a positive integer k. You want to find m non-decreasing arrays of non-negative integers b_1, b_2, …, b_m, such that: * The size of b_i is ...
instruction
0
104,628
12
209,256
Tags: constructive algorithms, greedy, math Correct Solution: ``` for _ in range(int(input())): n,k = map(int,input().split(' ')) ans = 0 arr = [int(num) for num in input().split(' ')] if k==1 and len(set(arr))!=1: ans = -1 elif arr[0]==0 and len(set(arr))==1: ans = 1 el...
output
1
104,628
12
209,257
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a non-decreasing array of non-negative integers a_1, a_2, …, a_n. Also you are given a positive integer k. You want to find m non-decreasing arrays of non-negative integers b_1, b...
instruction
0
104,629
12
209,258
Yes
output
1
104,629
12
209,259
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a non-decreasing array of non-negative integers a_1, a_2, …, a_n. Also you are given a positive integer k. You want to find m non-decreasing arrays of non-negative integers b_1, b...
instruction
0
104,630
12
209,260
Yes
output
1
104,630
12
209,261
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a non-decreasing array of non-negative integers a_1, a_2, …, a_n. Also you are given a positive integer k. You want to find m non-decreasing arrays of non-negative integers b_1, b...
instruction
0
104,631
12
209,262
Yes
output
1
104,631
12
209,263
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a non-decreasing array of non-negative integers a_1, a_2, …, a_n. Also you are given a positive integer k. You want to find m non-decreasing arrays of non-negative integers b_1, b...
instruction
0
104,632
12
209,264
Yes
output
1
104,632
12
209,265
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a non-decreasing array of non-negative integers a_1, a_2, …, a_n. Also you are given a positive integer k. You want to find m non-decreasing arrays of non-negative integers b_1, b...
instruction
0
104,633
12
209,266
No
output
1
104,633
12
209,267
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a non-decreasing array of non-negative integers a_1, a_2, …, a_n. Also you are given a positive integer k. You want to find m non-decreasing arrays of non-negative integers b_1, b...
instruction
0
104,634
12
209,268
No
output
1
104,634
12
209,269
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a non-decreasing array of non-negative integers a_1, a_2, …, a_n. Also you are given a positive integer k. You want to find m non-decreasing arrays of non-negative integers b_1, b...
instruction
0
104,635
12
209,270
No
output
1
104,635
12
209,271
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a non-decreasing array of non-negative integers a_1, a_2, …, a_n. Also you are given a positive integer k. You want to find m non-decreasing arrays of non-negative integers b_1, b...
instruction
0
104,636
12
209,272
No
output
1
104,636
12
209,273
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given two tables A and B of size n × m. We define a sorting by column as the following: we choose a column and reorder the rows of the table by the value in this column, from the rows ...
instruction
0
104,681
12
209,362
No
output
1
104,681
12
209,363
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given two tables A and B of size n × m. We define a sorting by column as the following: we choose a column and reorder the rows of the table by the value in this column, from the rows ...
instruction
0
104,682
12
209,364
No
output
1
104,682
12
209,365
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given two tables A and B of size n × m. We define a sorting by column as the following: we choose a column and reorder the rows of the table by the value in this column, from the rows ...
instruction
0
104,683
12
209,366
No
output
1
104,683
12
209,367
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given two tables A and B of size n × m. We define a sorting by column as the following: we choose a column and reorder the rows of the table by the value in this column, from the rows ...
instruction
0
104,684
12
209,368
No
output
1
104,684
12
209,369
Provide tags and a correct Python 3 solution for this coding contest problem. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task is to find such permutation p of length n, tha...
instruction
0
104,824
12
209,648
Tags: constructive algorithms, greedy Correct Solution: ``` n,k = map(int,list(input().split())) for i in range(1,(k+3)//2): print(i, k+2-i,end=" ") if k>1 and k%2==0: print(k//2+1,end=" ") for i in range(k+2,n+1): print(i,end=" ") ```
output
1
104,824
12
209,649
Provide tags and a correct Python 3 solution for this coding contest problem. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task is to find such permutation p of length n, tha...
instruction
0
104,825
12
209,650
Tags: constructive algorithms, greedy Correct Solution: ``` [n, k], s = map(int, input().split()), [1] for i in range(k, 0, -1): s.append(s[-1] + (-i if (k - i) % 2 else i)) print(*s + sorted(set(range(1, n + 1)) - set(s))) ```
output
1
104,825
12
209,651
Provide tags and a correct Python 3 solution for this coding contest problem. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task is to find such permutation p of length n, tha...
instruction
0
104,826
12
209,652
Tags: constructive algorithms, greedy Correct Solution: ``` n,k=(int(i) for i in input().split()) l=[i for i in range(1,n-k+1)] l1=[i for i in range(n-k+1,n+1)] k1=0 k2=k-1 for i in range(k): if(i%2==0): l.append(l1[k2]) k2-=1 else: l.append(l1[k1]) k1+=1 print(*l) ```
output
1
104,826
12
209,653
Provide tags and a correct Python 3 solution for this coding contest problem. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task is to find such permutation p of length n, tha...
instruction
0
104,827
12
209,654
Tags: constructive algorithms, greedy Correct Solution: ``` from sys import stdin lines = list(filter(None, stdin.read().split('\n'))) def parseline(line): return list(map(int, line.split())) lines = list(map(parseline, lines)) n, k = lines[0] x = n + 1 for i in range(n, n - k, -1): if (n - i) % 2 == 0: x = x -...
output
1
104,827
12
209,655
Provide tags and a correct Python 3 solution for this coding contest problem. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task is to find such permutation p of length n, tha...
instruction
0
104,828
12
209,656
Tags: constructive algorithms, greedy Correct Solution: ``` n, k = map(int, input().split()) a = [x + 1 for x in range(n)] l = 0 r = n - 1 p = 0 for i in range(k - 1): if p: print(a[r], end = ' ') r -= 1 p = not p else: print(a[l], end = ' ') l += 1 p = not p ...
output
1
104,828
12
209,657
Provide tags and a correct Python 3 solution for this coding contest problem. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task is to find such permutation p of length n, tha...
instruction
0
104,829
12
209,658
Tags: constructive algorithms, greedy Correct Solution: ``` #In the name of Allah from sys import stdin, stdout input = stdin.readline n, k = map(int, input().split()) def f(n): n += 1 l = [] for i in range(1, 1 + n // 2): l.append(str(i)) l.append(str(n - i + ...
output
1
104,829
12
209,659
Provide tags and a correct Python 3 solution for this coding contest problem. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task is to find such permutation p of length n, tha...
instruction
0
104,830
12
209,660
Tags: constructive algorithms, greedy Correct Solution: ``` n, k = map(int, input().split()) a = [] k += 1 one = 0 two = 0 f = False for i in range(1, n + 1): if i % 2 != 0: i -= one a.append(i) one += 1 else: i -= two a.append(n + 2 - i) two += 1 k -= 1 i...
output
1
104,830
12
209,661
Provide tags and a correct Python 3 solution for this coding contest problem. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task is to find such permutation p of length n, tha...
instruction
0
104,831
12
209,662
Tags: constructive algorithms, greedy Correct Solution: ``` n,k = map(int,input().split()) a = list(range(1,n+1)) for i in range(1,k+1): a[i] = a[i-1] + (k-i+1 if i&1 else i-k-1) print(" ".join(repr(x) for x in a)) ```
output
1
104,831
12
209,663
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task...
instruction
0
104,832
12
209,664
Yes
output
1
104,832
12
209,665
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task...
instruction
0
104,833
12
209,666
Yes
output
1
104,833
12
209,667
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task...
instruction
0
104,834
12
209,668
Yes
output
1
104,834
12
209,669
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task...
instruction
0
104,835
12
209,670
Yes
output
1
104,835
12
209,671
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task...
instruction
0
104,836
12
209,672
No
output
1
104,836
12
209,673
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task...
instruction
0
104,837
12
209,674
No
output
1
104,837
12
209,675
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task...
instruction
0
104,838
12
209,676
No
output
1
104,838
12
209,677
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers not larger than n. We'll denote as n the length of permutation p1, p2, ..., pn. Your task...
instruction
0
104,839
12
209,678
No
output
1
104,839
12
209,679
Provide tags and a correct Python 3 solution for this coding contest problem. You are given an array of positive integers a1, a2, ..., an × T of length n × T. We know that for any i > n it is true that ai = ai - n. Find the length of the longest non-decreasing sequence of the given array. Input The first line contai...
instruction
0
104,865
12
209,730
Tags: constructive algorithms, dp, matrices Correct Solution: ``` f = lambda: map(int, input().split()) n, m = f() t = list(f()) d = {i: j for j, i in enumerate(sorted(set(t)))} t = [d[i] for i in t] k = len(d) a = [0] * k if m < 2 * k: for j in t * m: a[j] += 1 q = a[j] j += 1 while...
output
1
104,865
12
209,731
Provide tags and a correct Python 3 solution for this coding contest problem. You are given an array of positive integers a1, a2, ..., an × T of length n × T. We know that for any i > n it is true that ai = ai - n. Find the length of the longest non-decreasing sequence of the given array. Input The first line contai...
instruction
0
104,866
12
209,732
Tags: constructive algorithms, dp, matrices Correct Solution: ``` f = lambda: map(int, input().split()) n, m = f() t = list(f()) s = [0] * 301 d = s[:] for i in t: d[i] += 1 for i in t * min(m, 2 * n): s[i] = max(s[:i + 1]) + 1 print(max(s) + max((m - n * 2) * max(d), 0)) ```
output
1
104,866
12
209,733
Provide tags and a correct Python 3 solution for this coding contest problem. You are given an array of positive integers a1, a2, ..., an × T of length n × T. We know that for any i > n it is true that ai = ai - n. Find the length of the longest non-decreasing sequence of the given array. Input The first line contai...
instruction
0
104,867
12
209,734
Tags: constructive algorithms, dp, matrices Correct Solution: ``` f = lambda: map(int, input().split()) n, m = f() t = list(f()) s = [0] * 301 d = s[:] for i in t: d[i] += 1 for i in t * min(m, 2 * n): s[i] = max(s[:i + 1]) + 1 print(max(s) + max((m - n * 2) * max(d), 0)) # Made By Mostafa_Khaled ```
output
1
104,867
12
209,735
Provide tags and a correct Python 3 solution for this coding contest problem. You are given an array of positive integers a1, a2, ..., an × T of length n × T. We know that for any i > n it is true that ai = ai - n. Find the length of the longest non-decreasing sequence of the given array. Input The first line contai...
instruction
0
104,868
12
209,736
Tags: constructive algorithms, dp, matrices Correct Solution: ``` mul=lambda A,B,r:[[max([A[i][k]+B[k][j] for k in r if A[i][k] and B[k][j]],default=0) for j in r] for i in r] def binpower(A,n,e): r = range(n) B = A #A^0 is invalid, thus start from A^1 e -= 1 while True: if e &1: B = mul(B,A...
output
1
104,868
12
209,737
Provide tags and a correct Python 3 solution for this coding contest problem. You are given an array of positive integers a1, a2, ..., an × T of length n × T. We know that for any i > n it is true that ai = ai - n. Find the length of the longest non-decreasing sequence of the given array. Input The first line contai...
instruction
0
104,869
12
209,738
Tags: constructive algorithms, dp, matrices Correct Solution: ``` # ---------------------------iye ha aam zindegi--------------------------------------------- import math import random import heapq,bisect import sys from collections import deque, defaultdict from fractions import Fraction import sys import threading fr...
output
1
104,869
12
209,739
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given an array of positive integers a1, a2, ..., an × T of length n × T. We know that for any i > n it is true that ai = ai - n. Find the length of the longest non-decreasing sequence of...
instruction
0
104,870
12
209,740
No
output
1
104,870
12
209,741
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given an array of positive integers a1, a2, ..., an × T of length n × T. We know that for any i > n it is true that ai = ai - n. Find the length of the longest non-decreasing sequence of...
instruction
0
104,871
12
209,742
No
output
1
104,871
12
209,743
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given an array of positive integers a1, a2, ..., an × T of length n × T. We know that for any i > n it is true that ai = ai - n. Find the length of the longest non-decreasing sequence of...
instruction
0
104,872
12
209,744
No
output
1
104,872
12
209,745
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given an array of positive integers a1, a2, ..., an × T of length n × T. We know that for any i > n it is true that ai = ai - n. Find the length of the longest non-decreasing sequence of...
instruction
0
104,873
12
209,746
No
output
1
104,873
12
209,747
Provide tags and a correct Python 3 solution for this coding contest problem. Define the simple skewness of a collection of numbers to be the collection's mean minus its median. You are given a list of n (not necessarily distinct) integers. Find the non-empty subset (with repetition) with the maximum simple skewness. ...
instruction
0
104,890
12
209,780
Tags: binary search, math, ternary search Correct Solution: ``` from itertools import accumulate from fractions import Fraction n = int(input()) A = [int(x) for x in input().split()] A.sort() B = list(accumulate([0] + A)) def condition(i, z): return (2*z - 1)*(A[i-z] + A[-z]) > 2*(B[i+1] - B[i-z+1] + B[-1] - B[-z]...
output
1
104,890
12
209,781
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Define the simple skewness of a collection of numbers to be the collection's mean minus its median. You are given a list of n (not necessarily distinct) integers. Find the non-empty subset (with...
instruction
0
104,891
12
209,782
No
output
1
104,891
12
209,783
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Define the simple skewness of a collection of numbers to be the collection's mean minus its median. You are given a list of n (not necessarily distinct) integers. Find the non-empty subset (with...
instruction
0
104,892
12
209,784
No
output
1
104,892
12
209,785
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Define the simple skewness of a collection of numbers to be the collection's mean minus its median. You are given a list of n (not necessarily distinct) integers. Find the non-empty subset (with...
instruction
0
104,893
12
209,786
No
output
1
104,893
12
209,787
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Define the simple skewness of a collection of numbers to be the collection's mean minus its median. You are given a list of n (not necessarily distinct) integers. Find the non-empty subset (with...
instruction
0
104,894
12
209,788
No
output
1
104,894
12
209,789
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Little Petya is now fond of data compression algorithms. He has already studied gz, bz, zip algorithms and many others. Inspired by the new knowledge, Petya is now developing the new compression...
instruction
0
104,895
12
209,790
No
output
1
104,895
12
209,791