oj.uz

Submission #1089879

# Submission time Handle Problem Language Result Execution time Memory
1089879 2024-09-17T10:59:48 Z toast12 Kronican (COCI16_kronican) C++14
100 / 100
 636 ms 4536 KB 
#include <bits/stdc++.h>
using namespace std;

int main() {
    int n, k;
    cin >> n >> k;
    vector<vector<int>> c(n, vector<int>(n));
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            cin >> c[i][j];
        }
    }
    int ans = INT_MAX;
    vector<int> dp((1<<n), 1e9);
    dp[0] = 0, dp[(1<<n)-1] = 0;
    for (int mask = (1<<n); mask >= 0; mask--) {
        if (__builtin_popcount(mask) == k) continue;
        for (int i = 0; i < n; i++) {
            if (!(mask & (1<<i))) continue;
            // try pouring contents of this glass into every other glass
            for (int j = 0; j < n; j++) {
                if (i != j && mask & (1<<j))
                    dp[mask-(1<<i)] = min(dp[mask-(1<<i)], dp[mask]+c[i][j]);
            }
        }
    }
    for (int mask = 0; mask < (1<<n); mask++) {
        if (__builtin_popcount(mask) == k) ans = min(ans, dp[mask]);
    }
    cout << ans << '\n';
    return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 5 ms 348 KB Output is correct
6 Correct 12 ms 348 KB Output is correct
7 Correct 25 ms 604 KB Output is correct
8 Correct 56 ms 860 KB Output is correct
9 Correct 636 ms 4444 KB Output is correct
10 Correct 528 ms 4536 KB Output is correct