Submission #855796


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#include<bits/stdc++.h>
using namespace std;


#define li			long long int
#define rep(i,to)	for(li i=0;i<((li)(to));i++)
#define repp(i,start,to)	for(li i=(li)(start);i<((li)(to));i++)
#define pb			push_back
#define sz(v)		((li)(v).size())
#define bgn(v)		((v).begin())
#define eend(v)		((v).end())
#define allof(v)	(v).begin(), (v).end()
#define dodp(v,n)		memset(v,(li)n,sizeof(v))
#define bit(n)		(1ll<<(li)(n))
#define mp(a,b)		make_pair(a,b)
#define rin	rep(i,n)
#define EPS 1e-12
#define ETOL 1e-8
#define MOD 1000000007
typedef pair<li, li> PI;

#define INF bit(60)

#define DBGP 1


#define idp if(DBGP)
#define F first
#define S second
#define p2(a,b)		idp cout<<a<<"\t"<<b<<endl
#define p3(a,b,c)		idp cout<<a<<"\t"<<b<<"\t"<<c<<endl
#define p4(a,b,c,d)		idp cout<<a<<"\t"<<b<<"\t"<<c<<"\t"<<d<<endl
#define p5(a,b,c,d,e)		idp cout<<a<<"\t"<<b<<"\t"<<c<<"\t"<<d<<"\t"<<e<<endl
#define p6(a,b,c,d,e,f)		idp cout<<a<<"\t"<<b<<"\t"<<c<<"\t"<<d<<"\t"<<e<<"\t"<<f<<endl
#define p7(a,b,c,d,e,f,g)		idp cout<<a<<"\t"<<b<<"\t"<<c<<"\t"<<d<<"\t"<<e<<"\t"<<f<<"\t"<<g<<endl
#define p8(a,b,c,d,e,f,g,h)		idp cout<<a<<"\t"<<b<<"\t"<<c<<"\t"<<d<<"\t"<<e<<"\t"<<f<<"\t"<<g<<"\t"<<h<<endl
#define p9(a,b,c,d,e,f,g,h,i)		idp cout<<a<<"\t"<<b<<"\t"<<c<<"\t"<<d<<"\t"<<e<<"\t"<<f<<"\t"<<g<<"\t"<<h<<"\t"<<i<<endl
#define p10(a,b,c,d,e,f,g,h,i,j)		idp cout<<a<<"\t"<<b<<"\t"<<c<<"\t"<<d<<"\t"<<e<<"\t"<<f<<"\t"<<g<<"\t"<<h<<"\t"<<i<<"\t"<<j<<endl
#define foreach(it,v)	for(__typeof((v).begin()) it=(v).begin(); it!=(v).end(); ++it)
#define p2p(x)		idp p2((x).F, (x).S)
#define dump(x,n)	idp{rep(i,n){cout<<x[i]<<" ";}puts("");}
#define dump2(x,n)	idp{rep(i,n){cout<<"["<<x[i].F<<" , "<<x[i].S<<"] ";}puts("");}
#define dumpi(x)	idp{foreach(it, x){cout<<(*it)<<" ";}puts("");}
#define dumpi2(x)	idp{foreach(it, x){cout<<"["<<(it)->F<<" , "<<(it)->S<<"] ";}puts("");}

#define read2d(a,w,h)	rep(i,h)rep(j,w)cin>>a[i][j]
#define dump2d(a,w,h)	rep(i,h){rep(j,w)cout<<a[i][j]<<" ";puts("");}

typedef pair<li, li> PI;

li x[55];

li dp[55][2555] = {{0}};

int main() {
	li n, a;
	cin >> n >> a;
	rin{
		cin >> x[i];
	}
	sort(x, x + n);

	dp[0][0] = 1;
	rep(i, n) {
		for (li j = n; j > 0; --j) {
			for (li k = 2500; k >= 0; --k) {
				dp[j][k + x[i]] += dp[j - 1][k];
			}
		}
		//dump2d(dp, 40, n);
		//puts("");
	}
	li res = 0;
	repp(i, 1, n + 1) {
		res += dp[i][a * i];
	}
	cout << res << endl;


	return 0;
}

Submission Info

Submission Time
Task C - Tak and Cards
User ynq1242
Language C++14 (GCC 5.4.1)
Score 300
Code Size 2480 Byte
Status AC
Exec Time 16 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 256 KB
example_03.txt AC 4 ms 384 KB
example_04.txt AC 10 ms 896 KB
subtask1_01.txt AC 5 ms 512 KB
subtask1_02.txt AC 6 ms 512 KB
subtask1_03.txt AC 5 ms 512 KB
subtask1_04.txt AC 5 ms 512 KB
subtask1_05.txt AC 5 ms 512 KB
subtask1_06.txt AC 4 ms 256 KB
subtask1_07.txt AC 4 ms 256 KB
subtask1_08.txt AC 5 ms 512 KB
subtask1_09.txt AC 5 ms 512 KB
subtask2_01.txt AC 15 ms 1280 KB
subtask2_02.txt AC 15 ms 1280 KB
subtask2_03.txt AC 15 ms 1280 KB
subtask2_04.txt AC 15 ms 1280 KB
subtask2_05.txt AC 15 ms 1280 KB
subtask2_06.txt AC 16 ms 1280 KB
subtask2_07.txt AC 16 ms 1280 KB
subtask2_08.txt AC 9 ms 896 KB
subtask2_09.txt AC 9 ms 896 KB
subtask2_10.txt AC 12 ms 1024 KB
subtask2_11.txt AC 13 ms 1152 KB