Create 913-cat-and-mouse.js

Author: everthis

913-cat-and-mouse.js

@@ -0,0 +1,68 @@
+/**
+ * @param {number[][]} graph
+ * @return {number}
+ */
+const catMouseGame = function (g) {
+  const n = g.length
+  const win = Array(2)
+    .fill(0)
+    .map(() => Array(n * n).fill(0))
+  for (let i = 0; i < n; i++) {
+    win[0][i] = 1
+    win[1][i] = 1
+  }
+  for (let i = 1; i < n; i++) {
+    win[0][i * n + i] = 2
+    win[1][i * n + i] = 2
+  }
+
+  while (true) {
+    let anew = false
+    for (let m = 0; m < n; m++) {
+      inner: for (let c = 1; c < n; c++) {
+        if (win[0][m * n + c] == 0) {
+          let und = false
+          for (let e of g[m]) {
+            if (win[1][e * n + c] == 1) {
+              win[0][m * n + c] = 1
+              anew = true
+              continue inner
+            }
+            if (win[1][e * n + c] == 0) {
+              und = true
+            }
+          }
+          if (!und) {
+            win[0][m * n + c] = 2
+            anew = true
+          }
+        }
+      }
+    }
+    for (let c = 1; c < n; c++) {
+      inner: for (let m = 0; m < n; m++) {
+        if (win[1][m * n + c] == 0) {
+          let und = false
+          for (e of g[c]) {
+            if (e == 0) continue
+            if (win[0][m * n + e] == 2) {
+              win[1][m * n + c] = 2
+              anew = true
+              continue inner
+            }
+            if (win[0][m * n + e] == 0) {
+              und = true
+            }
+          }
+          if (!und) {
+            win[1][m * n + c] = 1
+            anew = true
+          }
+        }
+      }
+    }
+    if (!anew) break
+  }
+
+  return win[0][1 * n + 2]
+}