feat: [44] 通配符匹配

src/leecode/javascript/44.通配符匹配.js

@@ -0,0 +1,42 @@
+/*
+ * @lc app=leetcode.cn id=44 lang=javascript
+ *
+ * [44] 通配符匹配
+ */
+
+// @lc code=start
+/**
+ * @param {string} s
+ * @param {string} p
+ * @return {boolean}
+ */
+var isMatch = function (s, p) {
+  const cache = {};
+  return dp(0, 0, s, p, cache);
+};
+
+var dp = (si, pi, s, p, cache) => {
+  const key = `${si}:${pi}`;
+  if (key in cache) {
+    return cache[key];
+  }
+  if (si == s.length) {
+    //空字符串匹配剩余全部是*的情况
+    return pi >= p.length || (p.charAt(pi) == '*' && dp(si, pi + 1, s, p, cache));
+  }
+  if (pi >= p.length) {
+    cache[key] = false;
+    return false;
+  }
+  const sVal = s.charAt(si);
+  const pVal = p.charAt(pi);
+  let ret = false;
+  if (pVal == '?' || pVal == sVal) {
+    ret = dp(si + 1, pi + 1, s, p, cache);
+  } else if (pVal == '*') {
+    ret = dp(si + 1, pi + 1, s, p, cache) || dp(si + 1, pi, s, p, cache) || dp(si, pi + 1, s, p, cache);
+  }
+  cache[key] = ret;
+  return ret;
+};
+// @lc code=end