제출 #473330

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
473330		_L__	San (COCI17_san)	C++17	24 / 120	1093 ms	204 KiB

san

// This code is written by _L__
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define F_word ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL);
typedef long long ll;
typedef long double ld;
const int mod = 1e9+7, N = 2e5+13, inf = 1e9+1;
const ld E = 1e-6;
#define ff first
#define ss second

ll n, k,h[45], c[45], ans = 0;
void go(int idx, int prev, ll coins){
    if(idx >= n){ if(coins >= k){ans++;return;}else{return;}}
    if(h[idx] >= h[prev]){
        go(idx+1, idx, coins+c[idx]);
    }
    go(idx+1, prev, coins);
}

int main(void){
    F_word;
    cin >> n >> k;
    for(int i = 0; i < n; ++i) cin >> h[i] >> c[i];
    go(0,0,0); cout << ans%mod << endl;
} 

• Subtask 1: 24 / 24
• Subtask 2: 0 / 24
• Subtask 3: 0 / 24
• Subtask 4: 0 / 24
• Subtask 5: 0 / 24