Create Solution.js

Author: 07subhadip

solution/2700-2799/2707.Extra Characters in a String/Solution.js

@@ -0,0 +1,19 @@
+/**
+ * @param {string} s
+ * @param {string[]} dictionary
+ * @return {number}
+ */
+var minExtraChar = function(s, dictionary) {
+    const ss = new Set(dictionary);
+    const n = s.length;
+    const f = new Array(n + 1).fill(0);
+    for (let i = 1; i <= n; ++i) {
+        f[i] = f[i - 1] + 1;
+        for (let j = 0; j < i; ++j) {
+            if (ss.has(s.substring(j, i))) {
+                f[i] = Math.min(f[i], f[j]);
+            }
+        }
+    }
+    return f[n];
+};