Submission #98480

#	Time	Username	Problem	Language	Result	Execution time	Memory
98480		pamaj	Kronican (COCI16_kronican)	C++14	90 / 100	2019 ms	4496 KiB

kronican

#include <bits/stdc++.h>
using namespace std;
const int maxn = 20;

#pragma GCC optimize("Ofast")

int n, k;
int c[maxn][maxn];
int dp[1 << 20];

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;
}


int32_t 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));

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

}

• Subtask 1: 90 / 100