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Submission #38672

# Submission time Handle Problem Language Result Execution time Memory
38672 2018-01-05T23:05:28 Z adamczh1 San (COCI17_san) C++14
48 / 120
 73 ms 2016 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int,int> pii;

#define SIZE(x) (int)(x).size()
#define ff first
#define ss second

inline ll readi(){
	ll x=0,f=1;char ch=getchar();
	while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
	while(ch>='0'&&ch<='9'){x=x*10+ch-'0';ch=getchar();}
	return x*f;
}

int N;
ll K, ans;
int H[40], G[40];

int main(){
	N=readi(), K=readi();
	for(int i=0; i<N; i++){
		H[i]=readi();
		G[i]=readi();
	}
	for(int mask=0; mask<(1<<N); mask++){
		int last=-1;
		ll sum=0;
		bool ok=1;
		for(int i=0; i<N; i++){
			if((mask>>i)&1){
				if(H[i]<last){
					ok=0;
					break;
				}
				last=H[i];
				sum+=G[i];
			}
		}
		if(ok && sum>=K){
			ans++;
		}
	}
	cout<<ans<<endl;
	return 0;
}

Subtask #1
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2016 KB Output is correct
2 Correct 0 ms 2016 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 2016 KB Output is correct
2 Correct 16 ms 2016 KB Output is correct

Subtask #3
0 / 24.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 2016 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 2016 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 2016 KB Output isn't correct
2 Halted 0 ms 0 KB -