oj.uz

Submission #98477

# Submission time Handle Problem Language Result Execution time Memory
98477 2019-02-23T18:32:58 Z pamaj Kronican (COCI16_kronican) C++14
90 / 100
 2000 ms 4572 KB 
#include <bits/stdc++.h>
using namespace std;
const int maxn = 20;

int n, k;
int c[maxn][maxn];
int dp[1 << 20];
int dist[maxn];
int qt;
int solve(int mask)
{
	if(__builtin_popcount(mask) >= n - k) return 0;

	if(dp[mask] != -1) return dp[mask];

	int ans = 1e9;
	for(int i = 0; i < n; i++)
	{
		for(int j = 0; j < n; j++)
		{
			if(i == j or (mask & (1 << i)) or (mask & (1 << j))) continue;

			ans = min(ans, solve(mask | (1 << i)) + c[i][j]);
		}
	}

	return dp[mask] = ans;
}


int main()
{
	cin >> n >> k;

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

	memset(dp, -1, sizeof(dp));

	qt = min(n - k, 0);

	cout << solve(0) << "\n";

}

Subtask #1
90.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4352 KB Output is correct
2 Correct 6 ms 4352 KB Output is correct
3 Correct 6 ms 4352 KB Output is correct
4 Correct 6 ms 4352 KB Output is correct
5 Correct 18 ms 4352 KB Output is correct
6 Correct 56 ms 4572 KB Output is correct
7 Correct 83 ms 4472 KB Output is correct
8 Correct 186 ms 4480 KB Output is correct
9 Execution timed out 2025 ms 4352 KB Time limit exceeded
10 Correct 170 ms 4480 KB Output is correct