Submission #855490


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#include<iostream>
#include<vector>
#include<cstdio>
#include<string>
#include<algorithm>

#define ll long long

using namespace std;

int main(){
    long long n,a;
    cin>>n>>a;
    vector<vector<ll> > dp(n+1, vector<ll>(50*50+1,0));
    vector<int> x(n);
    for(int i=0; i<n; i++){
	cin>>x[i]; 
	for(int k=i; k>=1; k--){
	for(int j=0; j<=50*50; j++){
		if(dp[k][j]){
		    dp[k+1][j+x[i]] += dp[k][j];
		}
	    }
	}
	dp[1][x[i]]++;
    }
    ll res=dp[1][a];
    for(int i=2; i<=n; i++){
	res+=dp[i][a*i];
    }
    cout<<res;

}

Submission Info

Submission Time
Task C - Tak and Cards
User bas
Language C++14 (GCC 5.4.1)
Score 300
Code Size 566 Byte
Status AC
Exec Time 9 ms
Memory 1280 KB

Judge Result

Set Name Sample Subtask1 All
Score / Max Score 0 / 0 200 / 200 100 / 100
Status
AC × 4
AC × 12
AC × 24
Set Name Test Cases
Sample example_01.txt, example_02.txt, example_03.txt, example_04.txt
Subtask1 example_01.txt, example_02.txt, example_03.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt
All example_01.txt, example_02.txt, example_03.txt, example_04.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask2_01.txt, subtask2_02.txt, subtask2_03.txt, subtask2_04.txt, subtask2_05.txt, subtask2_06.txt, subtask2_07.txt, subtask2_08.txt, subtask2_09.txt, subtask2_10.txt, subtask2_11.txt
Case Name Status Exec Time Memory
example_01.txt AC 4 ms 384 KB
example_02.txt AC 4 ms 384 KB
example_03.txt AC 4 ms 384 KB
example_04.txt AC 6 ms 896 KB
subtask1_01.txt AC 5 ms 640 KB
subtask1_02.txt AC 5 ms 640 KB
subtask1_03.txt AC 5 ms 640 KB
subtask1_04.txt AC 5 ms 640 KB
subtask1_05.txt AC 5 ms 640 KB
subtask1_06.txt AC 4 ms 256 KB
subtask1_07.txt AC 4 ms 256 KB
subtask1_08.txt AC 5 ms 640 KB
subtask1_09.txt AC 5 ms 512 KB
subtask2_01.txt AC 9 ms 1280 KB
subtask2_02.txt AC 9 ms 1280 KB
subtask2_03.txt AC 9 ms 1280 KB
subtask2_04.txt AC 9 ms 1280 KB
subtask2_05.txt AC 9 ms 1280 KB
subtask2_06.txt AC 9 ms 1280 KB
subtask2_07.txt AC 9 ms 1280 KB
subtask2_08.txt AC 6 ms 896 KB
subtask2_09.txt AC 6 ms 896 KB
subtask2_10.txt AC 8 ms 1024 KB
subtask2_11.txt AC 8 ms 1152 KB