Submission #854814


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#include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define rep1(i,n) for(int i=1;i<=(int)(n);i++)
#define all(c) c.begin(),c.end()
#define pb push_back
#define fs first
#define sc second
#define show(x) cout << #x << " = " << x << endl
#define chmin(x,y) x=min(x,y)
#define chmax(x,y) x=max(x,y)
using namespace std;
template<class S,class T> ostream& operator<<(ostream& o,const pair<S,T> &p){return o<<"("<<p.fs<<","<<p.sc<<")";}
template<class T> ostream& operator<<(ostream& o,const vector<T> &vc){o<<"sz = "<<vc.size()<<endl<<"[";for(const T& v:vc) o<<v<<",";o<<"]";return o;}
typedef long long ll;
ll dp[51][51][2501];
int main(){
	int N,A;
	cin>>N>>A;
	dp[0][0][0]=1;
	rep(i,N){
		int x;
		cin>>x;
		rep(j,50) rep(k,2501) if(dp[i][j][k]){
			dp[i+1][j][k]+=dp[i][j][k];
			dp[i+1][j+1][k+x]+=dp[i][j][k];
		}
	}
	ll ans=0;
	rep1(i,N) ans+=dp[N][i][i*A];
	cout<<ans<<endl;
}

Submission Info

Submission Time
Task C - Tak and Cards
User sigma425
Language C++14 (GCC 5.4.1)
Score 300
Code Size 931 Byte
Status AC
Exec Time 48 ms
Memory 9600 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 7 ms 256 KB
example_02.txt AC 6 ms 256 KB
example_03.txt AC 11 ms 384 KB
example_04.txt AC 33 ms 2560 KB
subtask1_01.txt AC 18 ms 896 KB
subtask1_02.txt AC 16 ms 896 KB
subtask1_03.txt AC 16 ms 896 KB
subtask1_04.txt AC 16 ms 896 KB
subtask1_05.txt AC 16 ms 1024 KB
subtask1_06.txt AC 5 ms 256 KB
subtask1_07.txt AC 5 ms 256 KB
subtask1_08.txt AC 16 ms 896 KB
subtask1_09.txt AC 15 ms 896 KB
subtask2_01.txt AC 47 ms 8320 KB
subtask2_02.txt AC 47 ms 8320 KB
subtask2_03.txt AC 46 ms 7808 KB
subtask2_04.txt AC 45 ms 5504 KB
subtask2_05.txt AC 44 ms 5504 KB
subtask2_06.txt AC 45 ms 5504 KB
subtask2_07.txt AC 48 ms 9600 KB
subtask2_08.txt AC 31 ms 3328 KB
subtask2_09.txt AC 30 ms 3456 KB
subtask2_10.txt AC 38 ms 5376 KB
subtask2_11.txt AC 40 ms 6144 KB