Submission #38672

#	Time	Username	Problem	Language	Result	Execution time	Memory
38672		adamczh1	San (COCI17_san)	C++14	48 / 120	73 ms	2016 KiB

san

#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 / 24
• Subtask 2: 24 / 24
• Subtask 3: 0 / 24
• Subtask 4: 0 / 24
• Subtask 5: 0 / 24