longest common subsequence solution

Author: hyer0705

longest-common-subsequence/hyer0705.ts

@@ -0,0 +1,18 @@
+function longestCommonSubsequence(text1: string, text2: string): number {
+  const m = text1.length;
+  const n = text2.length;
+
+  const dp: number[][] = Array.from({ length: m + 1 }, () => Array(n + 1).fill(0));
+
+  for (let i = 1; i <= m; i++) {
+    for (let j = 1; j <= n; j++) {
+      if (text1[i - 1] === text2[j - 1]) {
+        dp[i][j] = dp[i - 1][j - 1] + 1;
+      } else {
+        dp[i][j] = Math.max(dp[i - 1][j], dp[i][j - 1]);
+      }
+    }
+  }
+
+  return dp[m][n];
+}