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.
One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts. This time Lesha decided to split the array A into several, possibly one, new arrays so that the sum of elements in each of the ne... | instruction | 0 | 89,761 | 12 | 179,522 |
Tags: constructive algorithms, greedy, implementation
Correct Solution:
```
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
N = int(input())
As = list(map(int,input().split()))
if min(As) == max(As) == 0:
print("NO")
else:
print("YES")
if sum(As) != 0:
print("1")
print("{} {}".format(1,N))
... | output | 1 | 89,761 | 12 | 179,523 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts. This time Lesha decided to split the array A into several, possibly one, new arrays so that the sum of elements in each of the ne... | instruction | 0 | 89,762 | 12 | 179,524 |
Tags: constructive algorithms, greedy, implementation
Correct Solution:
```
n = int(input())
arr = list(map(int,input().split()))
sm = sum(arr)
if sm!=0:
print("YES")
print(1)
print(1,n)
else:
sm = 0
done = False
for i in range(n):
sm += arr[i]
if sm!=0:
print("YES")
... | output | 1 | 89,762 | 12 | 179,525 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts. This time Lesha decided to split the array A into several, possibly one, new arrays so that the sum of elements in each of the ne... | instruction | 0 | 89,763 | 12 | 179,526 |
Tags: constructive algorithms, greedy, implementation
Correct Solution:
```
n = int(input())
lst = list(map(int, input().split()))
if sum(lst) != 0:
print("YES\n1\n1 %d" % (n))
else:
for i in range(1, n):
if sum(lst[:i]) != 0:
print("YES\n2\n1 %d\n%d %d" % (i, i+1, n))
quit()
... | output | 1 | 89,763 | 12 | 179,527 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts. This time Lesha decided to split the array A into several, possibly one, new arrays so that the sum of elements in each of the ne... | instruction | 0 | 89,764 | 12 | 179,528 |
Tags: constructive algorithms, greedy, implementation
Correct Solution:
```
n=int(input())
a=list(map(int, input().split()))
if a.count(0)==n:
print("NO")
else:
print("YES")
if sum(a)==0:
for i in range(n):
if sum(a[:i])!=0:
print("2")
print("1 "+str(i))
... | output | 1 | 89,764 | 12 | 179,529 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts. This time Lesha decided to split the array A into several, possibly one, new arrays so that the sum of elements in each of the ne... | instruction | 0 | 89,765 | 12 | 179,530 |
Tags: constructive algorithms, greedy, implementation
Correct Solution:
```
n=int(input())
a=list(map(int,input().split()))
sum = 0
for i in range(n):
sum = sum + a[i]
if sum:
print ("YES")
print ("1")
print ("1",n)
else:
teksum,ans = 0,0
for i in range(n):
if teksum:
ans=i
... | output | 1 | 89,765 | 12 | 179,531 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts. This time Lesha decided to split the array A into several, possibly one, new arrays so that the sum of elements in each of the ne... | instruction | 0 | 89,766 | 12 | 179,532 |
Tags: constructive algorithms, greedy, implementation
Correct Solution:
```
n = int(input())
a = [int(b) for b in input().split()]
ans = 0
indexes = []
if len(set(a)) == 1 and a[0] == 0:
print("NO")
exit()
if sum(a) != 0:
print("YES")
print(1)
print(1, n)
exit()
for i in range(n):
if a[... | output | 1 | 89,766 | 12 | 179,533 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts. This time Lesha decided to split the array A into several, possibly one, new array... | instruction | 0 | 89,767 | 12 | 179,534 |
Yes | output | 1 | 89,767 | 12 | 179,535 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts. This time Lesha decided to split the array A into several, possibly one, new array... | instruction | 0 | 89,768 | 12 | 179,536 |
Yes | output | 1 | 89,768 | 12 | 179,537 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts. This time Lesha decided to split the array A into several, possibly one, new array... | instruction | 0 | 89,769 | 12 | 179,538 |
Yes | output | 1 | 89,769 | 12 | 179,539 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts. This time Lesha decided to split the array A into several, possibly one, new array... | instruction | 0 | 89,770 | 12 | 179,540 |
Yes | output | 1 | 89,770 | 12 | 179,541 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts. This time Lesha decided to split the array A into several, possibly one, new array... | instruction | 0 | 89,771 | 12 | 179,542 |
No | output | 1 | 89,771 | 12 | 179,543 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts. This time Lesha decided to split the array A into several, possibly one, new array... | instruction | 0 | 89,772 | 12 | 179,544 |
No | output | 1 | 89,772 | 12 | 179,545 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts. This time Lesha decided to split the array A into several, possibly one, new array... | instruction | 0 | 89,773 | 12 | 179,546 |
No | output | 1 | 89,773 | 12 | 179,547 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts. This time Lesha decided to split the array A into several, possibly one, new array... | instruction | 0 | 89,774 | 12 | 179,548 |
No | output | 1 | 89,774 | 12 | 179,549 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The only difference between easy and hard versions is a number of elements in the array.
You are given an array a consisting of n integers. The value of the i-th element of the array is a_i.
You are also given a set of m segments. The j-th... | instruction | 0 | 90,154 | 12 | 180,308 |
Tags: data structures, implementation
Correct Solution:
```
n, m = map(int, input().split())
A = list(map(int, input().split()))
Lf = [[] for _ in range(n)]
Rb = [[] for _ in range(n)]
LR = []
for i in range(m):
l, r = map(int, input().split())
l, r = l-1, r-1
Lf[r].append(l)
Rb[l].append(r)
LR.appe... | output | 1 | 90,154 | 12 | 180,309 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The only difference between easy and hard versions is a number of elements in the array.
You are given an array a consisting of n integers. The value of the i-th element of the array is a_i.
You are also given a set of m segments. The j-th... | instruction | 0 | 90,155 | 12 | 180,310 |
Tags: data structures, implementation
Correct Solution:
```
# Author : nitish420 --------------------------------------------------------------------
import os
import sys
from io import BytesIO, IOBase
def main():
n,m=map(int,input().split())
arr=list(map(int,input().split()))
left=[[] for _ in range(n)]
right=[[]... | output | 1 | 90,155 | 12 | 180,311 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The only difference between easy and hard versions is a number of elements in the array.
You are given an array a consisting of n integers. The value of the i-th element of the array is a_i.
You are also given a set of m segments. The j-th... | instruction | 0 | 90,156 | 12 | 180,312 |
Tags: data structures, implementation
Correct Solution:
```
import sys
# a very nice implementation of a minimum segment tree with
# some inspiration taken from https://codeforces.com/blog/entry/18051
# this implementation should be able to be modified to do pretty
# much anything one would want to do with segment tr... | output | 1 | 90,156 | 12 | 180,313 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The only difference between easy and hard versions is a number of elements in the array.
You are given an array a consisting of n integers. The value of the i-th element of the array is a_i.
You are also given a set of m segments. The j-th... | instruction | 0 | 90,157 | 12 | 180,314 |
Tags: data structures, implementation
Correct Solution:
```
def main():
n, m = map(int, input().split())
aa = list(map(int, input().split()))
res = max(aa) - min(aa)
ll, rr = [n + 1], [n + 1]
segments = res_segments = [False] * (m + 1)
bounds = {0, n, n + 1}
for _ in range(m):
l, r =... | output | 1 | 90,157 | 12 | 180,315 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The only difference between easy and hard versions is a number of elements in the array.
You are given an array a consisting of n integers. The value of the i-th element of the array is a_i.
You are also given a set of m segments. The j-th... | instruction | 0 | 90,158 | 12 | 180,316 |
Tags: data structures, implementation
Correct Solution:
```
from sys import stdin
input=stdin.readline
def f(a,b):
# if max(a)<0 and min(a)<0:
b=sorted(b,key=lambda s:s[1]-s[0])
t={}
for i in range(len(a)):
l=[]
for j in b:
if i in range(j[0],j[1]+1):
l.append(j... | output | 1 | 90,158 | 12 | 180,317 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The only difference between easy and hard versions is a number of elements in the array.
You are given an array a consisting of n integers. The value of the i-th element of the array is a_i.
You are also given a set of m segments. The j-th... | instruction | 0 | 90,159 | 12 | 180,318 |
Tags: data structures, implementation
Correct Solution:
```
from __future__ import division, print_function
def main():
def f(a, b):
# if max(a)<0 and min(a)<0:
b = sorted(b, key=lambda s: s[1] - s[0])
t = {}
for i in range(len(a)):
l = []
for j in b:
... | output | 1 | 90,159 | 12 | 180,319 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The only difference between easy and hard versions is a number of elements in the array.
You are given an array a consisting of n integers. The value of the i-th element of the array is a_i.
You are also given a set of m segments. The j-th... | instruction | 0 | 90,160 | 12 | 180,320 |
Tags: data structures, implementation
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
from c... | output | 1 | 90,160 | 12 | 180,321 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The only difference between easy and hard versions is a number of elements in the array.
You are given an array a consisting of n integers. The value of the i-th element of the array is a_i.
You are also given a set of m segments. The j-th... | instruction | 0 | 90,161 | 12 | 180,322 |
Tags: data structures, implementation
Correct Solution:
```
# after solving E1 it was quite easy to come up with the idea of lazy segtree
import sys
# a very nice implementation of a minimum segment tree with
# some inspiration taken from https://codeforces.com/blog/entry/18051
# this implementation should be able t... | output | 1 | 90,161 | 12 | 180,323 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The only difference between easy and hard versions is a number of elements in the array.
You are given an array a consisting of n integers. The value of the i-th element of the array is a_i.
Y... | instruction | 0 | 90,162 | 12 | 180,324 |
No | output | 1 | 90,162 | 12 | 180,325 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The only difference between easy and hard versions is a number of elements in the array.
You are given an array a consisting of n integers. The value of the i-th element of the array is a_i.
Y... | instruction | 0 | 90,163 | 12 | 180,326 |
No | output | 1 | 90,163 | 12 | 180,327 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The only difference between easy and hard versions is a number of elements in the array.
You are given an array a consisting of n integers. The value of the i-th element of the array is a_i.
Y... | instruction | 0 | 90,164 | 12 | 180,328 |
No | output | 1 | 90,164 | 12 | 180,329 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The only difference between easy and hard versions is a number of elements in the array.
You are given an array a consisting of n integers. The value of the i-th element of the array is a_i.
Y... | instruction | 0 | 90,165 | 12 | 180,330 |
No | output | 1 | 90,165 | 12 | 180,331 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams around the world. Before the tournament starts, Bob ... | instruction | 0 | 90,242 | 12 | 180,484 |
Tags: constructive algorithms, implementation
Correct Solution:
```
from collections import defaultdict
def Fir3():
global final,d,ones
for i in d[ones]:
x,y= i if len(d[i[0]])==2 else i[::-1]
final.extend([x,y])
if (ones,y) in d[x]:d[x].remove((ones,y))
else:d[x].remove((y,ones... | output | 1 | 90,242 | 12 | 180,485 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams around the world. Before the tournament starts, Bob ... | instruction | 0 | 90,243 | 12 | 180,486 |
Tags: constructive algorithms, implementation
Correct Solution:
```
n = int(input())
trip = {}
cnt = [0] * (n + 1)
for i in range(n - 2):
p1, p2, p3 = sorted(map(int, input().split()))
if (p1, p2) in trip:
trip[(p1, p2)].append(p3)
else:
trip[(p1, p2)] = [p3]
if (p1, p3) in trip:
... | output | 1 | 90,243 | 12 | 180,487 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams around the world. Before the tournament starts, Bob ... | instruction | 0 | 90,244 | 12 | 180,488 |
Tags: constructive algorithms, implementation
Correct Solution:
```
import sys
from functools import lru_cache, cmp_to_key
from heapq import merge, heapify, heappop, heappush
from math import *
from collections import defaultdict as dd, deque, Counter as C
from itertools import combinations as comb, permutations as per... | output | 1 | 90,244 | 12 | 180,489 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams around the world. Before the tournament starts, Bob ... | instruction | 0 | 90,245 | 12 | 180,490 |
Tags: constructive algorithms, implementation
Correct Solution:
```
import sys
input = sys.stdin.readline
n = int(input())
adj_list = [[] for _ in range(n)]
for _ in range(n-2):
q1, q2, q3 = map(int, input().split())
adj_list[q1-1].append(q2-1)
adj_list[q1-1].append(q3-1)
adj_list[q2-1].append(q3-1)
... | output | 1 | 90,245 | 12 | 180,491 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams around the world. Before the tournament starts, Bob ... | instruction | 0 | 90,246 | 12 | 180,492 |
Tags: constructive algorithms, implementation
Correct Solution:
```
"""
Satwik_Tiwari ;) .
12th Sept , 2020 - Saturday
"""
#===============================================================================================
#importing some useful libraries.
from __future__ import division, print_function
from fr... | output | 1 | 90,246 | 12 | 180,493 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams around the world. Before the tournament starts, Bob ... | instruction | 0 | 90,247 | 12 | 180,494 |
Tags: constructive algorithms, implementation
Correct Solution:
```
import math
#------------------------------warmup----------------------------
import os
import sys
from io import BytesIO, IOBase
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.filen... | output | 1 | 90,247 | 12 | 180,495 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams around the world. Before the tournament starts, Bob ... | instruction | 0 | 90,248 | 12 | 180,496 |
Tags: constructive algorithms, implementation
Correct Solution:
```
n=int(input())
l=[]
d={}
count={}
for i in range(n-2):
l.append(list(map(int,input().split())))
temp=l[-1]
if temp[0] in count:
count[temp[0]][0]+=1
else:
count[temp[0]]=[1,temp]
if temp[1] in count:
count[temp[1]][0]+=1
else:
count[temp[... | output | 1 | 90,248 | 12 | 180,497 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams around the world. Before the tournament starts, Bob ... | instruction | 0 | 90,249 | 12 | 180,498 |
Tags: constructive algorithms, implementation
Correct Solution:
```
def ii(): return int(input())
def li(): return list(map(int,input().split()))
def mp(): return map(int,input().split())
def i(): return input()
#Code starts here
n=ii()
a=[]
for i in range(n+1):
a.append(set())
for i in range(n-2):
x,y,z=mp... | output | 1 | 90,249 | 12 | 180,499 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams aroun... | instruction | 0 | 90,250 | 12 | 180,500 |
Yes | output | 1 | 90,250 | 12 | 180,501 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams aroun... | instruction | 0 | 90,251 | 12 | 180,502 |
Yes | output | 1 | 90,251 | 12 | 180,503 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams aroun... | instruction | 0 | 90,252 | 12 | 180,504 |
Yes | output | 1 | 90,252 | 12 | 180,505 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams aroun... | instruction | 0 | 90,253 | 12 | 180,506 |
Yes | output | 1 | 90,253 | 12 | 180,507 |
Evaluate the correctness of the submitted Python 2 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams aroun... | instruction | 0 | 90,254 | 12 | 180,508 |
Yes | output | 1 | 90,254 | 12 | 180,509 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams aroun... | instruction | 0 | 90,255 | 12 | 180,510 |
No | output | 1 | 90,255 | 12 | 180,511 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams aroun... | instruction | 0 | 90,256 | 12 | 180,512 |
No | output | 1 | 90,256 | 12 | 180,513 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams aroun... | instruction | 0 | 90,257 | 12 | 180,514 |
No | output | 1 | 90,257 | 12 | 180,515 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams aroun... | instruction | 0 | 90,258 | 12 | 180,516 |
No | output | 1 | 90,258 | 12 | 180,517 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This problem is interactive.
We have hidden a permutation p_1, p_2, ..., p_n of numbers from 1 to n from you, where n is even. You can try to guess it using the following queries:
? k a_1 a_2 ... | instruction | 0 | 90,275 | 12 | 180,550 |
No | output | 1 | 90,275 | 12 | 180,551 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This problem is interactive.
We have hidden a permutation p_1, p_2, ..., p_n of numbers from 1 to n from you, where n is even. You can try to guess it using the following queries:
? k a_1 a_2 ... | instruction | 0 | 90,276 | 12 | 180,552 |
No | output | 1 | 90,276 | 12 | 180,553 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This problem is interactive.
We have hidden a permutation p_1, p_2, ..., p_n of numbers from 1 to n from you, where n is even. You can try to guess it using the following queries:
? k a_1 a_2 ... | instruction | 0 | 90,277 | 12 | 180,554 |
No | output | 1 | 90,277 | 12 | 180,555 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This problem is interactive.
We have hidden a permutation p_1, p_2, ..., p_n of numbers from 1 to n from you, where n is even. You can try to guess it using the following queries:
? k a_1 a_2 ... | instruction | 0 | 90,278 | 12 | 180,556 |
No | output | 1 | 90,278 | 12 | 180,557 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Koa the Koala has a matrix A of n rows and m columns. Elements of this matrix are distinct integers from 1 to n ⋅ m (each number from 1 to n ⋅ m appears exactly once in the matrix).
For any mat... | instruction | 0 | 90,322 | 12 | 180,644 |
No | output | 1 | 90,322 | 12 | 180,645 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Koa the Koala has a matrix A of n rows and m columns. Elements of this matrix are distinct integers from 1 to n ⋅ m (each number from 1 to n ⋅ m appears exactly once in the matrix).
For any mat... | instruction | 0 | 90,323 | 12 | 180,646 |
No | output | 1 | 90,323 | 12 | 180,647 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The Little Elephant has got a problem — somebody has been touching his sorted by non-decreasing array a of length n and possibly swapped some elements of the array.
The Little Elephant doesn't want to call the police until he understands if... | instruction | 0 | 90,403 | 12 | 180,806 |
Tags: implementation, sortings
Correct Solution:
```
n=int(input())
arr1=list(map(int,input().split()))
count=0
j=0
arr2=sorted(arr1)
for i in range(n):
if(arr1[i]!=arr2[i]):
count+=1
if(count<=2):
print('YES')
else:
print('NO')
``` | output | 1 | 90,403 | 12 | 180,807 |
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