Submission #874173

#	Time	Username	Problem	Language	Result	Execution time	Memory
874173		vjudge1	Olympiads (BOI19_olympiads)	C++17	44 / 100	2045 ms	132960 KiB

olympiads

#include <bits/stdc++.h>
using namespace std;
using i64 = long long;

int matr[500][6];

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

    for(int i = 0; i < n; i++) {
        for(int j = 0; j < k; j++) {
            cin >> matr[i][j];
        }
    }

    vector <int> vec;
    auto calc = [&]() -> int {
        vector <int> po(k);
        for(int &i : vec) {
            for(int j = 0; j < k; j++) {
                po[j] = max(po[j], matr[i][j]);
            }
        }

        return accumulate(po.begin(), po.end(), 0);
    };

    vector <int> anss;
    function <void(int)> f = [&](int idx) -> void {
        if(int(vec.size()) == k) {
            anss.emplace_back(calc());
            return;
        }

        if(idx == n) {
            return;
        }
        
        vec.emplace_back(idx);
        f(idx +1);
        vec.pop_back();
        f(idx +1);
    };

    f(0);

    sort(anss.begin(), anss.end(), greater <> ());

    cout << anss[c -1];
    
    return;
}

signed main() {
    #ifndef ONLINE_JUDGE
        freopen(".in", "r", stdin);
        freopen(".out", "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: 13 / 13
• Subtask 2: 31 / 31
• Subtask 3: 0 / 24
• Subtask 4: 0 / 32