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.
An array of integers p_1, p_2, ..., p_n is called a permutation if it contains each number from 1 to n exactly once. For example, the following arrays are permutations: [3, 1, 2], [1], [1, 2, 3,... | instruction | 0 | 43,876 | 12 | 87,752 |
No | output | 1 | 43,876 | 12 | 87,753 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
An array of integers p_1, p_2, ..., p_n is called a permutation if it contains each number from 1 to n exactly once. For example, the following arrays are permutations: [3, 1, 2], [1], [1, 2, 3,... | instruction | 0 | 43,877 | 12 | 87,754 |
No | output | 1 | 43,877 | 12 | 87,755 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
An array of integers p_1, p_2, ..., p_n is called a permutation if it contains each number from 1 to n exactly once. For example, the following arrays are permutations: [3, 1, 2], [1], [1, 2, 3,... | instruction | 0 | 43,878 | 12 | 87,756 |
No | output | 1 | 43,878 | 12 | 87,757 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let's define a balanced multiset the following way. Write down the sum of all elements of the multiset in its decimal representation. For each position of that number check if the multiset inclu... | instruction | 0 | 43,927 | 12 | 87,854 |
No | output | 1 | 43,927 | 12 | 87,855 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let's define a balanced multiset the following way. Write down the sum of all elements of the multiset in its decimal representation. For each position of that number check if the multiset inclu... | instruction | 0 | 43,928 | 12 | 87,856 |
No | output | 1 | 43,928 | 12 | 87,857 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let's define a balanced multiset the following way. Write down the sum of all elements of the multiset in its decimal representation. For each position of that number check if the multiset inclu... | instruction | 0 | 43,929 | 12 | 87,858 |
No | output | 1 | 43,929 | 12 | 87,859 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let's define a balanced multiset the following way. Write down the sum of all elements of the multiset in its decimal representation. For each position of that number check if the multiset inclu... | instruction | 0 | 43,930 | 12 | 87,860 |
No | output | 1 | 43,930 | 12 | 87,861 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence a_1, a_2, ..., a_n, consisting of integers.
You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the beginning, or to the end of a. Note that you h... | instruction | 0 | 43,931 | 12 | 87,862 |
Tags: dp, greedy, two pointers
Correct Solution:
```
import os
import sys
def solve(arr):
items = sorted(set(arr))
min_max = [(float("inf"), float("-inf"))] * len(items)
item_to_idx = {k: idx for idx, k in enumerate(items)}
for idx, a in enumerate(arr):
m, M = min_max[item_to_idx[a]]
m... | output | 1 | 43,931 | 12 | 87,863 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence a_1, a_2, ..., a_n, consisting of integers.
You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the beginning, or to the end of a. Note that you h... | instruction | 0 | 43,932 | 12 | 87,864 |
Tags: dp, greedy, two pointers
Correct Solution:
```
import sys as _sys
def main():
q = int(input())
for i_q in range(q):
n, = _read_ints()
a = tuple(_read_ints())
result = find_min_sorting_cost(sequence=a)
print(result)
def _read_line():
result = _sys.stdin.readline()
... | output | 1 | 43,932 | 12 | 87,865 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence a_1, a_2, ..., a_n, consisting of integers.
You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the beginning, or to the end of a. Note that you h... | instruction | 0 | 43,933 | 12 | 87,866 |
Tags: dp, greedy, two pointers
Correct Solution:
```
# |
# _` | __ \ _` | __| _ \ __ \ _` | _` |
# ( | | | ( | ( ( | | | ( | ( |
# \__,_| _| _| \__,_| \___| \___/ _| _| \__,_| \__,_|
import sys
import math
def read_line():
ret... | output | 1 | 43,933 | 12 | 87,867 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence a_1, a_2, ..., a_n, consisting of integers.
You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the beginning, or to the end of a. Note that you h... | instruction | 0 | 43,934 | 12 | 87,868 |
Tags: dp, greedy, two pointers
Correct Solution:
```
from sys import stdin
input = stdin.readline
def main():
anses = []
for _ in range(int(input())):
n = int(input())
a = list(map(int, input().split()))
f = [0]*(n+1)
d = sorted(list(set(a)))
for q in range(1, len(d)+1)... | output | 1 | 43,934 | 12 | 87,869 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence a_1, a_2, ..., a_n, consisting of integers.
You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the beginning, or to the end of a. Note that you h... | instruction | 0 | 43,935 | 12 | 87,870 |
Tags: dp, greedy, two pointers
Correct Solution:
```
import sys
input = sys.stdin.readline
for _ in range(int(input())):
n=int(input())
A=list(map(int,input().split()))
compression_dict={a:id for id,a in enumerate(sorted(set(A)))}
A=[compression_dict[a] for a in A]
lenth=len(A)
l=[-1]*(lenth)... | output | 1 | 43,935 | 12 | 87,871 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence a_1, a_2, ..., a_n, consisting of integers.
You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the beginning, or to the end of a. Note that you h... | instruction | 0 | 43,936 | 12 | 87,872 |
Tags: dp, greedy, two pointers
Correct Solution:
```
def main():
from sys import stdin, stdout
for _ in range(int(stdin.readline())):
n = int(stdin.readline())
inp1 = [-1] * (n + 1)
inp2 = [-1] * (n + 1)
for i, ai in enumerate(map(int, stdin.readline().split())):
if i... | output | 1 | 43,936 | 12 | 87,873 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence a_1, a_2, ..., a_n, consisting of integers.
You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the beginning, or to the end of a. Note that you h... | instruction | 0 | 43,937 | 12 | 87,874 |
Tags: dp, greedy, two pointers
Correct Solution:
```
import sys
input=sys.stdin.buffer.readline
for _ in range(int(input())):
n=int(input())
a=list(map(int,input().split()))
stored=[-1 for i in range(n+2)]
counted=[[0,0] for i in range(n+2)]
count=0
for i in range(n):
stored[a[i]]=a[i]
... | output | 1 | 43,937 | 12 | 87,875 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence a_1, a_2, ..., a_n, consisting of integers.
You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the beginning, or to the end of a. Note that you h... | instruction | 0 | 43,938 | 12 | 87,876 |
Tags: dp, greedy, two pointers
Correct Solution:
```
import os
import sys
from io import BytesIO, IOBase
# region fastio
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
self.writable = "x" in file.mode or "r"... | output | 1 | 43,938 | 12 | 87,877 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence a_1, a_2, ..., a_n, consisting of integers.
You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the... | instruction | 0 | 43,939 | 12 | 87,878 |
Yes | output | 1 | 43,939 | 12 | 87,879 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence a_1, a_2, ..., a_n, consisting of integers.
You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the... | instruction | 0 | 43,940 | 12 | 87,880 |
Yes | output | 1 | 43,940 | 12 | 87,881 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence a_1, a_2, ..., a_n, consisting of integers.
You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the... | instruction | 0 | 43,941 | 12 | 87,882 |
Yes | output | 1 | 43,941 | 12 | 87,883 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence a_1, a_2, ..., a_n, consisting of integers.
You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the... | instruction | 0 | 43,942 | 12 | 87,884 |
No | output | 1 | 43,942 | 12 | 87,885 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence a_1, a_2, ..., a_n, consisting of integers.
You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the... | instruction | 0 | 43,943 | 12 | 87,886 |
No | output | 1 | 43,943 | 12 | 87,887 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence a_1, a_2, ..., a_n, consisting of integers.
You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the... | instruction | 0 | 43,944 | 12 | 87,888 |
No | output | 1 | 43,944 | 12 | 87,889 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence a_1, a_2, ..., a_n, consisting of integers.
You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the... | instruction | 0 | 43,945 | 12 | 87,890 |
No | output | 1 | 43,945 | 12 | 87,891 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the parity of the element at that index. More formal... | instruction | 0 | 44,010 | 12 | 88,020 |
Tags: greedy, math
Correct Solution:
```
t=int(input())
ans=[]
for _ in range(t):
n=int(input())
l=list(map(int,input().split()))
flag=0
ce=0
co=0
for i in l[::2]:
if(i%2==1):
ce+=1
for i in l[1::2]:
if(i%2==0):
co+=1
if(ce!=co):
ans.append... | output | 1 | 44,010 | 12 | 88,021 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the parity of the element at that index. More formal... | instruction | 0 | 44,011 | 12 | 88,022 |
Tags: greedy, math
Correct Solution:
```
t = int(input())
N = [None]*t
for k in range(t):
n = int(input())
m = list(map(int, input().split()))
bad_odd = 0
bad_even = 0
for i in range(len(m)):
if i % 2 != m[i] % 2 and i % 2 == 1:
bad_odd += 1
elif i % 2 != m[i] % 2 and i %... | output | 1 | 44,011 | 12 | 88,023 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the parity of the element at that index. More formal... | instruction | 0 | 44,012 | 12 | 88,024 |
Tags: greedy, math
Correct Solution:
```
from sys import stdin
def input(): return stdin.readline().rstrip()
for _ in range(int(input())):
n = int(input())
a = list(map(int, input().split()))
c = 0
d = 0
for i in range(len(a)):
if a[i]%2 != i%2:
if i%2 == 0:
c +... | output | 1 | 44,012 | 12 | 88,025 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the parity of the element at that index. More formal... | instruction | 0 | 44,013 | 12 | 88,026 |
Tags: greedy, math
Correct Solution:
```
for _ in range(int(input())):
m=int(input())
arr=list(map(int,input().split()))
n=[]
for k in range(m):
if(k%2==0):
if(arr[k]%2==0):
n.append(0)
else:
n.append('e')
else:
if(arr[k... | output | 1 | 44,013 | 12 | 88,027 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the parity of the element at that index. More formal... | instruction | 0 | 44,014 | 12 | 88,028 |
Tags: greedy, math
Correct Solution:
```
def solve(arr,n,ans):
moves = 0
for i in range(n):
if arr[i]%2 != i%2:
index = -1
for j in range(i,n):
if arr[j]%2 != j%2 and arr[i]%2 == j%2 and arr[j]%2 == i%2:
index = j
break
... | output | 1 | 44,014 | 12 | 88,029 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the parity of the element at that index. More formal... | instruction | 0 | 44,015 | 12 | 88,030 |
Tags: greedy, math
Correct Solution:
```
for _ in range(int(input())):
x=int(input())
a=list(map(int, input().split()))
b=[]
for i in range(x):
if a[i]%2!=i%2 and i%2==1:
b.append(1)
elif a[i]%2!=i%2 and i%2==0:
b.append(0)
if b.count(0)==b.count(1): print(b.count(0))
else: print(-1)
``` | output | 1 | 44,015 | 12 | 88,031 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the parity of the element at that index. More formal... | instruction | 0 | 44,016 | 12 | 88,032 |
Tags: greedy, math
Correct Solution:
```
#!/bin/python3
#https://codeforces.com/problemset/problem/1367/B
import sys, os.path, math
pwd = os.path.dirname(__file__)
if(os.path.exists(os.path.join(pwd,'../iostream/input.txt'))):
sys.stdin = open(os.path.join(pwd,'../iostream/input.txt'), 'r')
sys.stdout = open(... | output | 1 | 44,016 | 12 | 88,033 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an array a[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the parity of the element at that index. More formal... | instruction | 0 | 44,017 | 12 | 88,034 |
Tags: greedy, math
Correct Solution:
```
from fractions import Fraction
from collections import defaultdict
import math
import os
import sys
from io import BytesIO, IOBase
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = Bytes... | output | 1 | 44,017 | 12 | 88,035 |
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[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the p... | instruction | 0 | 44,018 | 12 | 88,036 |
Yes | output | 1 | 44,018 | 12 | 88,037 |
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[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the p... | instruction | 0 | 44,019 | 12 | 88,038 |
Yes | output | 1 | 44,019 | 12 | 88,039 |
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[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the p... | instruction | 0 | 44,020 | 12 | 88,040 |
Yes | output | 1 | 44,020 | 12 | 88,041 |
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[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the p... | instruction | 0 | 44,021 | 12 | 88,042 |
Yes | output | 1 | 44,021 | 12 | 88,043 |
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[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the p... | instruction | 0 | 44,022 | 12 | 88,044 |
No | output | 1 | 44,022 | 12 | 88,045 |
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[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the p... | instruction | 0 | 44,023 | 12 | 88,046 |
No | output | 1 | 44,023 | 12 | 88,047 |
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[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the p... | instruction | 0 | 44,024 | 12 | 88,048 |
No | output | 1 | 44,024 | 12 | 88,049 |
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[0 … n-1] of length n which consists of non-negative integers. Note that array indices start from zero.
An array is called good if the parity of each index matches the p... | instruction | 0 | 44,025 | 12 | 88,050 |
No | output | 1 | 44,025 | 12 | 88,051 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is an interactive problem.
There is a secret permutation p (1-indexed) of numbers from 1 to n. More formally, for 1 ≤ i ≤ n, 1 ≤ p[i] ≤ n and for 1 ≤ i < j ≤ n, p[i] ≠ p[j]. It is known th... | instruction | 0 | 44,072 | 12 | 88,144 |
No | output | 1 | 44,072 | 12 | 88,145 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is an interactive problem.
There is a secret permutation p (1-indexed) of numbers from 1 to n. More formally, for 1 ≤ i ≤ n, 1 ≤ p[i] ≤ n and for 1 ≤ i < j ≤ n, p[i] ≠ p[j]. It is known th... | instruction | 0 | 44,073 | 12 | 88,146 |
No | output | 1 | 44,073 | 12 | 88,147 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is an interactive problem.
There is a secret permutation p (1-indexed) of numbers from 1 to n. More formally, for 1 ≤ i ≤ n, 1 ≤ p[i] ≤ n and for 1 ≤ i < j ≤ n, p[i] ≠ p[j]. It is known th... | instruction | 0 | 44,074 | 12 | 88,148 |
No | output | 1 | 44,074 | 12 | 88,149 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
This is an interactive problem.
There is a secret permutation p (1-indexed) of numbers from 1 to n. More formally, for 1 ≤ i ≤ n, 1 ≤ p[i] ≤ n and for 1 ≤ i < j ≤ n, p[i] ≠ p[j]. It is known th... | instruction | 0 | 44,075 | 12 | 88,150 |
No | output | 1 | 44,075 | 12 | 88,151 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Sereja has an array a, consisting of n integers a1, a2, ..., an. The boy cannot sit and do nothing, he decided to study an array. Sereja took a piece of paper and wrote out m integers l1, l2, ..., lm (1 ≤ li ≤ n). For each number li he wants... | instruction | 0 | 44,157 | 12 | 88,314 |
Tags: data structures, dp
Correct Solution:
```
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
n,m=[int(x) for x in input().split()]
a=[int(x) for x in input().split()]
b=[0]*(n+1)
s=set()
for i in range(n,0,-1):
s.add(a[i-1])
b[i]=str(len(s))
'''for i in range(m):
l=int(input())
print(b[l])'''
print('\... | output | 1 | 44,157 | 12 | 88,315 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Sereja has an array a, consisting of n integers a1, a2, ..., an. The boy cannot sit and do nothing, he decided to study an array. Sereja took a piece of paper and wrote out m integers l1, l2, ..., lm (1 ≤ li ≤ n). For each number li he wants... | instruction | 0 | 44,158 | 12 | 88,316 |
Tags: data structures, dp
Correct Solution:
```
n,m=map(int,input().split())
a=[int(x) for x in input().split()]
b=[0]*m
d=[0]*n
for i in range(m):
b[i]=int(input())
hx=[0]*100010
ans=0
for i in range(n):
if(hx[a[n-1-i]]==0):
hx[a[n-1-i]]=1
ans+=1
d[n-1-i]=str(int(ans))
for i in range(m):
... | output | 1 | 44,158 | 12 | 88,317 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Sereja has an array a, consisting of n integers a1, a2, ..., an. The boy cannot sit and do nothing, he decided to study an array. Sereja took a piece of paper and wrote out m integers l1, l2, ..., lm (1 ≤ li ≤ n). For each number li he wants... | instruction | 0 | 44,159 | 12 | 88,318 |
Tags: data structures, dp
Correct Solution:
```
n,m = [int(i) for i in input().split()]
nums = [int(i) for i in input().split()]
seen = set()
memo = [1]*n
res = ''
seen.add(nums[n-1])
for i in range(n-2,-1,-1):
if nums[i] not in seen:
seen.add(nums[i])
memo[i] = memo[i+1]+1
else:
memo[i]... | output | 1 | 44,159 | 12 | 88,319 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Sereja has an array a, consisting of n integers a1, a2, ..., an. The boy cannot sit and do nothing, he decided to study an array. Sereja took a piece of paper and wrote out m integers l1, l2, ..., lm (1 ≤ li ≤ n). For each number li he wants... | instruction | 0 | 44,160 | 12 | 88,320 |
Tags: data structures, dp
Correct Solution:
```
n,m = list(map(int, input().split()))
arr= list(map(int, input().split()))
visited=[False for _ in range (100005)]
dp=[0 for _ in range(n+1)]
dp[-1]=1
visited [arr[-1] ]=True
for i in range(n-1,0,-1):
# print(arr[i-1],visited[arr[i-1]])
if visited[arr[i-1]]:
... | output | 1 | 44,160 | 12 | 88,321 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Sereja has an array a, consisting of n integers a1, a2, ..., an. The boy cannot sit and do nothing, he decided to study an array. Sereja took a piece of paper and wrote out m integers l1, l2, ..., lm (1 ≤ li ≤ n). For each number li he wants... | instruction | 0 | 44,161 | 12 | 88,322 |
Tags: data structures, dp
Correct Solution:
```
n, m = [int(x) for x in input().strip().split()]
a = [int(x) for x in input().strip().split()]
used=set([a[-1]])
cnt=[1]*(n+1)
for i in range(n-2,-1,-1):
if(a[i] in used):
cnt[i+1] = cnt[i+2]
else:
cnt[i+1] = cnt[i+2] + 1
used.add(a[i])
#pr... | output | 1 | 44,161 | 12 | 88,323 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Sereja has an array a, consisting of n integers a1, a2, ..., an. The boy cannot sit and do nothing, he decided to study an array. Sereja took a piece of paper and wrote out m integers l1, l2, ..., lm (1 ≤ li ≤ n). For each number li he wants... | instruction | 0 | 44,162 | 12 | 88,324 |
Tags: data structures, dp
Correct Solution:
```
cnt = lambda s, i: s.count(i)
ii = lambda: int(input())
si = lambda : input()
f = lambda : map(int,input().split())
il = lambda : list(map(int,input().split()))
n,m=f()
l=il()
z=set()
for i in range(n-1,-1,-1):
z.add(l[i])
l[i]=len(z)
print('\n'.join(str(l[ii()-1]... | output | 1 | 44,162 | 12 | 88,325 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Sereja has an array a, consisting of n integers a1, a2, ..., an. The boy cannot sit and do nothing, he decided to study an array. Sereja took a piece of paper and wrote out m integers l1, l2, ..., lm (1 ≤ li ≤ n). For each number li he wants... | instruction | 0 | 44,163 | 12 | 88,326 |
Tags: data structures, dp
Correct Solution:
```
n, m=map(int, input().split(' '))
array=input().split(' ')
listx=[int(input()) for inpt in range(m)]
nums=set()
for i in range(n-1, -1, -1):
nums.add(array[i])
array[i]=len(nums)
for a in range(m):
print(array[listx[a]-1])
``` | output | 1 | 44,163 | 12 | 88,327 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Sereja has an array a, consisting of n integers a1, a2, ..., an. The boy cannot sit and do nothing, he decided to study an array. Sereja took a piece of paper and wrote out m integers l1, l2, ..., lm (1 ≤ li ≤ n). For each number li he wants... | instruction | 0 | 44,164 | 12 | 88,328 |
Tags: data structures, dp
Correct Solution:
```
import sys
input=sys.stdin.readline
n ,m = map(int,input().split())
a = list(map(int,input().split()))
dp = a
Data = set()
for i in range(n-1,-1,-1):
Data.add(a[i])
dp[i] = len(Data)
#print(dp)
for i in range(m):
print(dp[int(input())-1])
#hmachenan ba fekr k... | output | 1 | 44,164 | 12 | 88,329 |
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