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Submission #521473

# Submission time Handle Problem Language Result Execution time Memory
521473 2022-02-02T08:18:33 Z Rasoul006 San (COCI17_san) C++17
48 / 120
 1000 ms 320 KB 
#include <bits/stdc++.h>

#define endl "\n"

typedef long long ll;

using namespace std;

const int N = 1e6+5;
const int mod = 1e9+7;
ll a[200009] , b[200009] , n , k ;
int main()
{
    ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin >> n >> k ;
    for(int i = 0 ; i <  n ;i++){
        cin >> a[i] >> b[i] ;
    }
    ll ans = 0 ;
    for(int i = 0 ; i < (1ll << n) ; i++){
        ll mx = 0 ;
        ll cur = 0 ;
//        cout << i << endl ;
        for(int j = 0 ; j < n ; j++){
            if((i & (1ll << j))){
                if(a[j] >= mx){
//                    cout << j <<  " " ;
                    cur += b[j] ;
                }
                else{
                    cur = -1e18 ;
                }
                mx = max(a[j] , mx) ;
            }
        }
//        cout << endl ;
//        cout << cur << endl ;
        if(cur >= k){
            ans ++ ;
        }
    }
    cout << ans << endl ;
    return 0;
}

Subtask #1
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 62 ms 312 KB Output is correct
2 Correct 63 ms 320 KB Output is correct

Subtask #3
0 / 24.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1069 ms 204 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1002 ms 204 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1073 ms 204 KB Time limit exceeded
2 Halted 0 ms 0 KB -