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JUNGOL 1681
42 lines (38 loc) · 1 KB
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JUNGOL 1681
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import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
public class Main {
static int[][] map;
static boolean[] visit;
static int ans = Integer.MAX_VALUE, N;
public static void main(String[] args) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
N = Integer.parseInt(br.readLine());
map = new int[N][N];
visit = new boolean[N];
for (int i = 0; i < N; i++) {
StringTokenizer st = new StringTokenizer(br.readLine());
for (int j = 0; j < N; j++) {
map[i][j] = Integer.parseInt(st.nextToken());
}
}
perm(0,0,0);
System.out.println(ans);
}
private static void perm(int start, int index, int sum) {
if(sum >= ans)
return;
if(index == N-1) {
if(map[start][0] != 0)
ans = Math.min(ans, sum+map[start][0]);
return;
}
for (int i = 1; i < N; i++) {
if(map[start][i] != 0 && !visit[i]) {
visit[i] = true;
perm(i,index+1,sum+map[start][i]);
visit[i] = false;
}
}
}
}