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Submission #886691

# Submission time Handle Problem Language Result Execution time Memory
886691 2023-12-12T16:30:13 Z vjudge1 San (COCI17_san) C++17
48 / 120
 60 ms 456 KB 
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;

#define ONLINE_JUDGE
void solve() {
    int n; 
    i64 k;
    cin >> n >> k;

    vector <int> h(n), g(n);
    for(int i = 0; i < n; i++) {
        cin >> h[i] >> g[i];
    }

    int ans = 0;
    for(int mask = 0; mask < (1 << n); mask++) {
        int last = 0;
        i64 sum = 0;
        bool ok = true;
        for(int i = 0; i < n; i++) {
            if(mask & (1 << i)) {
                if(h[i] < last) {
                    ok = false;
                    break;
                }

                last = h[i];
                sum += g[i];
            }
        }

        ans += (sum >= k && ok);
    }

    cout << ans;
    
    return;
}

signed main() {
    #ifndef ONLINE_JUDGE
        freopen("in.txt", "r", stdin);
        freopen("out.txt", "w", stdout);
    #endif

    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);

    int t = 1; //cin >> t;
    for(int i = 1; i <= t; i++) {
        solve();
    }

    return 0;
}

Subtask #1
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 60 ms 348 KB Output is correct
2 Correct 12 ms 344 KB Output is correct

Subtask #3
0 / 24.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 456 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 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 452 KB Output isn't correct
2 Halted 0 ms 0 KB -