Submission #884243

#	Time	Username	Problem	Language	Result	Execution time	Memory
884243		qrno	Kronican (COCI16_kronican)	C++17	100 / 100	670 ms	4544 KiB

kronican

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

const int INF = 0x3f3f3f3f;
const int MAXN = 20;

int N, K;
int C[MAXN][MAXN];
int DP[1 << MAXN];

int main() {
  memset(DP, 0x3f, sizeof(DP));

  cin >> N >> K;
  for (int i = 0; i < N; i++)
    for (int j = 0; j < N; j++)
      cin >> C[i][j];

  int ans = INF;

  DP[(1 << N)-1] = 0;
  for (int m = (1 << N)-1; m >= 0; m--) {
    for (int i = 0; i < N; i++) {
      if (!(m & (1 << i))) continue;
      for (int j = 0; j < N; j++) {
        if (!(m & (1 << j)) || (i == j)) continue;
        DP[m^(1<<i)] = min(DP[m^(1<<i)], DP[m] + C[i][j]);
      }
    }
    if (__builtin_popcount(m) <= K) {
      ans = min(ans, DP[m]);
    }
  }

  cout << ans << endl;
}

• Subtask 1: 100 / 100