[D1] Title: N줄덧셈, Time: 82 ms, Memory: 22,528 KB -BaekjoonHub

Author: SHIMHUN

SWEA/D1/2025. N줄덧셈/N줄덧셈.java

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+import java.io.*;
+
+class Solution
+{
+	public static void main(String args[]) throws Exception
+	{
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        int n = Integer.parseInt(br.readLine());
+        
+        if(n==0) System.out.println("0");
+        else if(n%2==0) System.out.println((n/2) * (n+1));
+        else System.out.println((n/2)*(n+1)+(n/2+1));
+	}
+}

SWEA/D1/2025. N줄덧셈/README.md

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+# [D1] N줄덧셈 - 2025 
+
+[문제 링크](https://swexpertacademy.com/main/code/problem/problemDetail.do?contestProbId=AV5QFZtaAscDFAUq) 
+
+### 성능 요약
+
+메모리: 22,528 KB, 시간: 82 ms, 코드길이: 395 Bytes
+
+### 제출 일자
+
+2025-09-24 16:38
+
+
+
+> 출처: SW Expert Academy, https://swexpertacademy.com/main/code/problem/problemList.do