baekjoon 20260421

code_study/Baekjoon/python/15680.py

@@ -0,0 +1 @@
+print("Leading the Way to the Future" if int(input()) else "YONSEI")

code_study/Baekjoon/ts/2533.ts

@@ -0,0 +1,30 @@
+export {};
+
+const input = require("fs").readFileSync(0).toString().trim().split('\n');
+
+const N: number = Number(input[0]);
+let graph: number[][] = Array.from({length: N+1}, () => []);
+for(let i=1; i<N; i++) {
+    const [u, v]: number[] = input[i].split(" ").map(Number);
+    graph[u].push(v);
+    graph[v].push(u);
+}
+
+let visited: boolean[] = new Array(N+1).fill(false);
+let dp: number[][] = Array.from({length: N+1}, () => new Array(2).fill(0));
+
+const dfs = (n: number) => {
+    visited[n] = true;
+    dp[n][0] = 1;
+
+    for(let nxt of graph[n]) {
+        if(visited[nxt]) continue;
+
+        dfs(nxt);
+        dp[n][1] += dp[nxt][0];
+        dp[n][0] += Math.min(dp[nxt][0], dp[nxt][1]);
+    }
+};
+
+dfs(1);
+console.log(Math.min(dp[1][0], dp[1][1]));