new file: P10447.cpp

2026-08-14 19:39:51 +08:00
parent a4aefd004e
commit b6e6001fb1
1 changed files with 22 additions and 0 deletions
@@ -0,0 +1,22 @@
+// 91
+#include <bits/stdc++.h>
+using namespace std;
+int f[2100000][21], w[2100000][21];
+int n;
+int main()
+{
+    scanf("%d", &n);
+    for (int i = 0; i < n; i++)
+        for (int j = 0; j < n; j++)
+            scanf("%d", &w[i][j]);
+    memset(f, 0x7f, sizeof f);
+    f[1][0] = 0;
+    for (int i = 1; i < 1 << n; i++)
+        for (int j = 0; j < n; j++)
+            if (i >> j & 1)
+                for (int k = 0; k < n; k++)
+                    if (i >> k & 1)
+                        f[i][j] = min(f[i][j], f[i - (1 << j)][k] + w[k][j]);
+    cout << f[(1 << n) - 1][n - 1] << endl;
+    return 0;
+}