oj.uz

Submission #319917

# Submission time Handle Problem Language Result Execution time Memory
319917 2020-11-06T18:59:58 Z gustason San (COCI17_san) C++14
48 / 120
 909 ms 65540 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int n;
ll need;
int h[41], c[41];
set<vector<int>> s;
void go(ll earned, int curr, vector<int> steps) {
    //cout << earned << " " << curr << "\n";
    if (s.count(steps)) {
        return;
    }
    if (earned >= need) {
        s.insert(steps);
    }
    for(int i = curr+1; i < n; i++) {
        if (h[curr] > h[i]) continue;
        steps.push_back(i);
        go(earned + c[i], i, steps);
        steps.pop_back();
    }
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cin >> n >> need;
    for(int i = 0; i < n; i++) {
        cin >> h[i] >> c[i];
    }

    vector<int> start;
    for(int i = 0; i < n; i++) {
        start.push_back(i);
        go(c[i], i, start);
        start.pop_back();
    }
    cout << s.size() << "\n";
    return 0;
}
//~ check for overflows

Subtask #1
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 2 ms 620 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 147 ms 15384 KB Output is correct
2 Correct 2 ms 492 KB Output is correct

Subtask #3
0 / 24.0

# Verdict Execution time Memory Grader output
1 Runtime error 825 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Runtime error 694 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Runtime error 909 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -