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 |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the hard version of the problem. The difference between versions is the constraints on n and a_i. You can make hacks only if all versions of the problem are solved.
First, Aoi came up w... | instruction | 0 | 76,049 | 12 | 152,098 |
Yes | output | 1 | 76,049 | 12 | 152,099 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the hard version of the problem. The difference between versions is the constraints on n and a_i. You can make hacks only if all versions of the problem are solved.
First, Aoi came up w... | instruction | 0 | 76,050 | 12 | 152,100 |
No | output | 1 | 76,050 | 12 | 152,101 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the hard version of the problem. The difference between versions is the constraints on n and a_i. You can make hacks only if all versions of the problem are solved.
First, Aoi came up w... | instruction | 0 | 76,051 | 12 | 152,102 |
No | output | 1 | 76,051 | 12 | 152,103 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the hard version of the problem. The difference between versions is the constraints on n and a_i. You can make hacks only if all versions of the problem are solved.
First, Aoi came up w... | instruction | 0 | 76,052 | 12 | 152,104 |
No | output | 1 | 76,052 | 12 | 152,105 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is the hard version of the problem. The difference between versions is the constraints on n and a_i. You can make hacks only if all versions of the problem are solved.
First, Aoi came up w... | instruction | 0 | 76,053 | 12 | 152,106 |
No | output | 1 | 76,053 | 12 | 152,107 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a matrix consisting of digits zero and one, its size is n × m. You are allowed to rearrange its rows. What is the maximum area of the submatrix that only consists of ones and can be obtained in the given problem by the describe... | instruction | 0 | 76,201 | 12 | 152,402 |
Tags: data structures, dp, implementation, sortings
Correct Solution:
```
'''
from bisect import bisect,bisect_left
from collections import *
from math import gcd,ceil,sqrt,floor,inf
from heapq import *
from itertools import *
from operator import add,mul,sub,xor,truediv,floordiv
from functools import *'''
#---------... | output | 1 | 76,201 | 12 | 152,403 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There is an infinite sequence consisting of all positive integers in the increasing order: p = {1, 2, 3, ...}. We performed n swap operations with this sequence. A swap(a, b) is an operation of swapping the elements of the sequence on positi... | instruction | 0 | 76,267 | 12 | 152,534 |
Tags: binary search, data structures, implementation, sortings, trees
Correct Solution:
```
# ---------------------------iye ha aam zindegi---------------------------------------------
import math
import random
import heapq, bisect
import sys
from collections import deque, defaultdict
from fractions import Fraction
imp... | output | 1 | 76,267 | 12 | 152,535 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There is an infinite sequence consisting of all positive integers in the increasing order: p = {1, 2, 3, ...}. We performed n swap operations with this sequence. A swap(a, b) is an operation of swapping the elements of the sequence on positi... | instruction | 0 | 76,268 | 12 | 152,536 |
Tags: binary search, data structures, implementation, sortings, trees
Correct Solution:
```
"""
Author - Satwik Tiwari .
28th NOV , 2020 - Saturday
"""
#===============================================================================================
#importing some useful libraries.
from __future__ import div... | output | 1 | 76,268 | 12 | 152,537 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There is an infinite sequence consisting of all positive integers in the increasing order: p = {1, 2, 3, ...}. We performed n swap operations with this sequence. A swap(a, b) is an operation of swapping the elements of the sequence on positi... | instruction | 0 | 76,269 | 12 | 152,538 |
Tags: binary search, data structures, implementation, sortings, trees
Correct Solution:
```
import sys
from collections import defaultdict
class BIT():
def __init__(self, n):
self.n = n
self.tree = [0] * n
def _get_sum(self, r):
'''
sum on interval [0, r)
'''
... | output | 1 | 76,269 | 12 | 152,539 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is an infinite sequence consisting of all positive integers in the increasing order: p = {1, 2, 3, ...}. We performed n swap operations with this sequence. A swap(a, b) is an operation of ... | instruction | 0 | 76,270 | 12 | 152,540 |
No | output | 1 | 76,270 | 12 | 152,541 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is an infinite sequence consisting of all positive integers in the increasing order: p = {1, 2, 3, ...}. We performed n swap operations with this sequence. A swap(a, b) is an operation of ... | instruction | 0 | 76,271 | 12 | 152,542 |
No | output | 1 | 76,271 | 12 | 152,543 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is an infinite sequence consisting of all positive integers in the increasing order: p = {1, 2, 3, ...}. We performed n swap operations with this sequence. A swap(a, b) is an operation of ... | instruction | 0 | 76,272 | 12 | 152,544 |
No | output | 1 | 76,272 | 12 | 152,545 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is an infinite sequence consisting of all positive integers in the increasing order: p = {1, 2, 3, ...}. We performed n swap operations with this sequence. A swap(a, b) is an operation of ... | instruction | 0 | 76,273 | 12 | 152,546 |
No | output | 1 | 76,273 | 12 | 152,547 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Author has gone out of the stories about Vasiliy, so here is just a formal task description.
You are given q queries and a multiset A, initially containing only integer 0. There are three types of queries:
1. "+ x" — add integer x to mul... | instruction | 0 | 76,335 | 12 | 152,670 |
Tags: binary search, bitmasks, data structures, trees
Correct Solution:
```
import sys
input = sys.stdin.readline
class BinaryTrie:
class Node:
def __init__(self, bit: bool = False):
self.bit = bit # Stores the current bit (False if 0, True if 1)
self.children = []
self.... | output | 1 | 76,335 | 12 | 152,671 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a consisting of n positive integers, numbered from 1 to n. You can perform the following operation no more than 3n times:
1. choose three integers i, j and x (1 ≤ i, j ≤ n; 0 ≤ x ≤ 10^9);
2. assign a_i := a_i - x... | instruction | 0 | 76,888 | 12 | 153,776 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
'''Author- Akshit Monga'''
import math
t=int(input())
for _ in range(t):
n=int(input())
arr=[int(x) for x in input().split()]
if sum(arr)%n!=0:
print(-1)
continue
p=sum(arr)//n
ans=[]
for i in range(1,n):
i... | output | 1 | 76,888 | 12 | 153,777 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a consisting of n positive integers, numbered from 1 to n. You can perform the following operation no more than 3n times:
1. choose three integers i, j and x (1 ≤ i, j ≤ n; 0 ≤ x ≤ 10^9);
2. assign a_i := a_i - x... | instruction | 0 | 76,889 | 12 | 153,778 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
import math
import collections
t=int(input())
for w in range(t):
n=int(input())
l=[int(i) for i in input().split()]
s=sum(l)
if(s%n!=0):
print(-1)
else:
l1=[]
c=0
for i in range(1,n):
if(l[i... | output | 1 | 76,889 | 12 | 153,779 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a consisting of n positive integers, numbered from 1 to n. You can perform the following operation no more than 3n times:
1. choose three integers i, j and x (1 ≤ i, j ≤ n; 0 ≤ x ≤ 10^9);
2. assign a_i := a_i - x... | instruction | 0 | 76,890 | 12 | 153,780 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
import sys
ii = lambda: sys.stdin.readline().strip()
idata = lambda: [int(x) for x in ii().split()]
def solve():
n = int(ii())
data = idata()
k = sum(data) // n
if sum(data) % n:
print(-1)
return
ans = []
for i i... | output | 1 | 76,890 | 12 | 153,781 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a consisting of n positive integers, numbered from 1 to n. You can perform the following operation no more than 3n times:
1. choose three integers i, j and x (1 ≤ i, j ≤ n; 0 ≤ x ≤ 10^9);
2. assign a_i := a_i - x... | instruction | 0 | 76,891 | 12 | 153,782 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
import os
from sys import stdin, stdout
class Input:
def __init__(self):
self.lines = stdin.readlines()
self.idx = 0
def line(self):
try:
return self.lines[self.idx].strip()
finally:
s... | output | 1 | 76,891 | 12 | 153,783 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a consisting of n positive integers, numbered from 1 to n. You can perform the following operation no more than 3n times:
1. choose three integers i, j and x (1 ≤ i, j ≤ n; 0 ≤ x ≤ 10^9);
2. assign a_i := a_i - x... | instruction | 0 | 76,892 | 12 | 153,784 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
import sys
from array import array # noqa: F401
import typing as Tp # noqa: F401
def input():
return sys.stdin.buffer.readline().decode('utf-8')
def output(*args):
sys.stdout.buffer.write(
('\n'.join(map(str, args)) + '\n').encode('... | output | 1 | 76,892 | 12 | 153,785 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a consisting of n positive integers, numbered from 1 to n. You can perform the following operation no more than 3n times:
1. choose three integers i, j and x (1 ≤ i, j ≤ n; 0 ≤ x ≤ 10^9);
2. assign a_i := a_i - x... | instruction | 0 | 76,893 | 12 | 153,786 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
def t(lst):
return ' '.join(map(str, lst))
gans = []
for _ in range(int(input())):
n = int(input())
u = list(map(int, input().split()))
ans = []
sm = sum(u)
fn = sm // n
if sm % n != 0:
gans.append(str(-1))
c... | output | 1 | 76,893 | 12 | 153,787 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a consisting of n positive integers, numbered from 1 to n. You can perform the following operation no more than 3n times:
1. choose three integers i, j and x (1 ≤ i, j ≤ n; 0 ≤ x ≤ 10^9);
2. assign a_i := a_i - x... | instruction | 0 | 76,894 | 12 | 153,788 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
t = int(input())
for _ in range(t):
n = int(input())
a = list(map(int, input().split()))
f = True
ans = []
for i in range(1, n):
x = a[i] % (i + 1)
if x != 0: x = (i + 1) - x
if a[0] >= x:
ans.appen... | output | 1 | 76,894 | 12 | 153,789 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a consisting of n positive integers, numbered from 1 to n. You can perform the following operation no more than 3n times:
1. choose three integers i, j and x (1 ≤ i, j ≤ n; 0 ≤ x ≤ 10^9);
2. assign a_i := a_i - x... | instruction | 0 | 76,895 | 12 | 153,790 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
#------------------------template--------------------------#
import os
import sys
from math import *
from collections import *
# from fractions import *
# from heapq import*
from bisect import *
from io import BytesIO, IOBase
def vsInput():
sys.stdin... | output | 1 | 76,895 | 12 | 153,791 |
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 a consisting of n positive integers, numbered from 1 to n. You can perform the following operation no more than 3n times:
1. choose three integers i, j and x (1 ≤ i, j ... | instruction | 0 | 76,896 | 12 | 153,792 |
Yes | output | 1 | 76,896 | 12 | 153,793 |
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 a consisting of n positive integers, numbered from 1 to n. You can perform the following operation no more than 3n times:
1. choose three integers i, j and x (1 ≤ i, j ... | instruction | 0 | 76,897 | 12 | 153,794 |
Yes | output | 1 | 76,897 | 12 | 153,795 |
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 a consisting of n positive integers, numbered from 1 to n. You can perform the following operation no more than 3n times:
1. choose three integers i, j and x (1 ≤ i, j ... | instruction | 0 | 76,898 | 12 | 153,796 |
Yes | output | 1 | 76,898 | 12 | 153,797 |
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 a consisting of n positive integers, numbered from 1 to n. You can perform the following operation no more than 3n times:
1. choose three integers i, j and x (1 ≤ i, j ... | instruction | 0 | 76,899 | 12 | 153,798 |
Yes | output | 1 | 76,899 | 12 | 153,799 |
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 a consisting of n positive integers, numbered from 1 to n. You can perform the following operation no more than 3n times:
1. choose three integers i, j and x (1 ≤ i, j ... | instruction | 0 | 76,900 | 12 | 153,800 |
No | output | 1 | 76,900 | 12 | 153,801 |
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 a consisting of n positive integers, numbered from 1 to n. You can perform the following operation no more than 3n times:
1. choose three integers i, j and x (1 ≤ i, j ... | instruction | 0 | 76,902 | 12 | 153,804 |
No | output | 1 | 76,902 | 12 | 153,805 |
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 a consisting of n positive integers, numbered from 1 to n. You can perform the following operation no more than 3n times:
1. choose three integers i, j and x (1 ≤ i, j ... | instruction | 0 | 76,903 | 12 | 153,806 |
No | output | 1 | 76,903 | 12 | 153,807 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (inclusive);
* they differ in exactly one pos... | instruction | 0 | 76,932 | 12 | 153,864 |
Tags: dp, implementation, math
Correct Solution:
```
def zip_sorted(a,b):
# sorted by a
a,b = zip(*sorted(zip(a,b)))
# sorted by b
sorted(zip(a, b), key=lambda x: x[1])
return a,b
def number_to_list(a):
b = []
while a>=1:
c = a%10
a = int(a/10)
b.append(c)
return list(reversed(b))
def str_list... | output | 1 | 76,932 | 12 | 153,865 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (inclusive);
* they differ in exactly one pos... | instruction | 0 | 76,933 | 12 | 153,866 |
Tags: dp, implementation, math
Correct Solution:
```
from sys import stdin,stdout
n,q,k=map(int,stdin.readline().split())
a=list(map(int,stdin.readline().split()))
for _ in range(q):
l,r=map(int,stdin.readline().split())
dp=0
if r-l==0:
stdout.write(str(k-1)+'\n')
else:
stdout.write(str(... | output | 1 | 76,933 | 12 | 153,867 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (inclusive);
* they differ in exactly one pos... | instruction | 0 | 76,934 | 12 | 153,868 |
Tags: dp, implementation, math
Correct Solution:
```
# -*- coding: UTF-8 -*-
import sys
input = sys.stdin.readline
from itertools import accumulate
n, q, k = map(int, input().split())
a = list(map(int, input().split()))
from_left = [a[0]-1] * n
zero_left = [a[0]-1] * n
for i in range(1, n):
from_left[i] = a[i] -... | output | 1 | 76,934 | 12 | 153,869 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (inclusive);
* they differ in exactly one pos... | instruction | 0 | 76,935 | 12 | 153,870 |
Tags: dp, implementation, math
Correct Solution:
```
n,q,k=map(int,input().split())
arr=list(map(int,input().split()))
ans=[0]*(n)
for i in range(1,n):
ans[i]=ans[i-1]+2*(arr[i]-arr[i-1]-1)
for qq in range(q):
l,r=map(int,input().split())
l-=1
r-=1
print(ans[r]-ans[l]+arr[l]-1+k-arr[r])
``` | output | 1 | 76,935 | 12 | 153,871 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (inclusive);
* they differ in exactly one pos... | instruction | 0 | 76,936 | 12 | 153,872 |
Tags: dp, implementation, math
Correct Solution:
```
n,q,k=map(int,input().split());a=list(map(int,input().split()))
for Q in range(q):l,r=map(int,input().split());print(a[r-1]-a[l-1]+(l-r)*2+k-1)
``` | output | 1 | 76,936 | 12 | 153,873 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (inclusive);
* they differ in exactly one pos... | instruction | 0 | 76,937 | 12 | 153,874 |
Tags: dp, implementation, math
Correct Solution:
```
n, q, k = map(int, input().split())
a = list(map(int, input().split()))
b, c = [], [0]
if n > 1:
for i in range(n):
if i == 0:
b.append(a[i+1] - 3)
elif i == (n-1):
b.append(k - a[i-1] - 2)
else:
b.append(a[i+1] - a[i-1] - 2)
for i in range(n):
c.... | output | 1 | 76,937 | 12 | 153,875 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (inclusive);
* they differ in exactly one pos... | instruction | 0 | 76,938 | 12 | 153,876 |
Tags: dp, implementation, math
Correct Solution:
```
n, q, k = map(int, input().split())
a = list(map(int, input().split()))
for i in range(q):
l, r = map(int, input().split())
print(k - (r-l+1) + (a[r-1]-a[l-1]+1-(r-l+1)))
``` | output | 1 | 76,938 | 12 | 153,877 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (inclusive);
* they differ in exactly one pos... | instruction | 0 | 76,939 | 12 | 153,878 |
Tags: dp, implementation, math
Correct Solution:
```
###### ### ####### ####### ## # ##### ### #####
# # # # # # # # # # # # # ###
# # # # # # # # # # # # # ###
###### ... | output | 1 | 76,939 | 12 | 153,879 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (... | instruction | 0 | 76,940 | 12 | 153,880 |
Yes | output | 1 | 76,940 | 12 | 153,881 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (... | instruction | 0 | 76,941 | 12 | 153,882 |
Yes | output | 1 | 76,941 | 12 | 153,883 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (... | instruction | 0 | 76,942 | 12 | 153,884 |
Yes | output | 1 | 76,942 | 12 | 153,885 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (... | instruction | 0 | 76,943 | 12 | 153,886 |
Yes | output | 1 | 76,943 | 12 | 153,887 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (... | instruction | 0 | 76,944 | 12 | 153,888 |
No | output | 1 | 76,944 | 12 | 153,889 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (... | instruction | 0 | 76,945 | 12 | 153,890 |
No | output | 1 | 76,945 | 12 | 153,891 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (... | instruction | 0 | 76,946 | 12 | 153,892 |
No | output | 1 | 76,946 | 12 | 153,893 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given a positive integer k, two arrays are called k-similar if:
* they are strictly increasing;
* they have the same length;
* all their elements are positive integers between 1 and k (... | instruction | 0 | 76,947 | 12 | 153,894 |
No | output | 1 | 76,947 | 12 | 153,895 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
And here goes another problem on arrays. You are given positive integer len and array a which consists of n integers a1, a2, ..., an. Let's introduce two characteristics for the given array.
... | instruction | 0 | 76,980 | 12 | 153,960 |
No | output | 1 | 76,980 | 12 | 153,961 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
And here goes another problem on arrays. You are given positive integer len and array a which consists of n integers a1, a2, ..., an. Let's introduce two characteristics for the given array.
... | instruction | 0 | 76,981 | 12 | 153,962 |
No | output | 1 | 76,981 | 12 | 153,963 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
And here goes another problem on arrays. You are given positive integer len and array a which consists of n integers a1, a2, ..., an. Let's introduce two characteristics for the given array.
... | instruction | 0 | 76,982 | 12 | 153,964 |
No | output | 1 | 76,982 | 12 | 153,965 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
And here goes another problem on arrays. You are given positive integer len and array a which consists of n integers a1, a2, ..., an. Let's introduce two characteristics for the given array.
... | instruction | 0 | 76,983 | 12 | 153,966 |
No | output | 1 | 76,983 | 12 | 153,967 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Gena loves sequences of numbers. Recently, he has discovered a new type of sequences which he called an almost arithmetical progression. A sequence is an almost arithmetical progression, if its elements can be represented as:
* a1 = p, wh... | instruction | 0 | 77,000 | 12 | 154,000 |
Tags: brute force, dp
Correct Solution:
```
n=int(input())
b=list(map(int,input().split()))
dp=[[1]*n for i in range(n)]
d={}
k=0
for i in range(n):
if b[i] not in d:
d[b[i]]=k
k+=1
b[i]=d[b[i]]
for i in range(n):
for j in range(i):
dp[i][b[j]]=max(dp[j][b[i]]+1,dp[i][b[j]])
ans=0
for l in dp:
ans=m... | output | 1 | 77,000 | 12 | 154,001 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.