Submission #856289


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#include<iostream>
#include<cstring>
#include<cstdio>
using namespace std;
int a[55];
long long dp[55][2655];
int main(){
	int n,p;
	while(cin>>n>>p){
		memset(dp,0,sizeof(dp));
		for(int i=0;i<n;i++){
			cin>>a[i];
			
			for(int j=i+1;j>0;j--){
				for(int k=0;k<=2500;k++){
					dp[j][k+a[i]]+=dp[j-1][k];
				}
			}
			dp[1][a[i]]++;
		}
		/*for(int i=1;i<=5;i++){
			for(int j=0;j<=30;j++)
				printf("%d ",dp[i][j]);
			cout<<endl;
		}*/
		long long ans=0;
		for(int i=1;i<=n;i++){
			ans+=dp[i][i*p];
		}
		cout<<ans<<endl;
	
		
	}
	
	return 0 ;
}
/*
8 5
3 6 2 8 7 6 5 9
33 3
3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3

19
*/

Submission Info

Submission Time
Task C - Tak and Cards
User wang
Language C++14 (GCC 5.4.1)
Score 300
Code Size 698 Byte
Status AC
Exec Time 11 ms
Memory 1408 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 5 ms 1408 KB
example_02.txt AC 5 ms 1408 KB
example_03.txt AC 6 ms 1408 KB
example_04.txt AC 8 ms 1408 KB
subtask1_01.txt AC 6 ms 1408 KB
subtask1_02.txt AC 6 ms 1408 KB
subtask1_03.txt AC 6 ms 1408 KB
subtask1_04.txt AC 6 ms 1408 KB
subtask1_05.txt AC 6 ms 1408 KB
subtask1_06.txt AC 5 ms 1408 KB
subtask1_07.txt AC 5 ms 1408 KB
subtask1_08.txt AC 6 ms 1408 KB
subtask1_09.txt AC 6 ms 1408 KB
subtask2_01.txt AC 11 ms 1408 KB
subtask2_02.txt AC 11 ms 1408 KB
subtask2_03.txt AC 11 ms 1408 KB
subtask2_04.txt AC 11 ms 1408 KB
subtask2_05.txt AC 11 ms 1408 KB
subtask2_06.txt AC 11 ms 1408 KB
subtask2_07.txt AC 11 ms 1408 KB
subtask2_08.txt AC 8 ms 1408 KB
subtask2_09.txt AC 8 ms 1408 KB
subtask2_10.txt AC 9 ms 1408 KB
subtask2_11.txt AC 9 ms 1408 KB