Baekjoon Algorithm | Problem 8393: Sum

Tags:

Source

https://www.acmicpc.net/problem/8393

Problem

Solve Baekjoon Online Judge problem 8393, Sum.

Input

Follow the input format and constraints given in the original problem statement.

Output

Print the answer required by the problem.

Sample Input 1

3

Sample Output 1

6

Solution

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

    public static void main(String[] args) throws IOException {
        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {
            int input = Integer.parseInt(br.readLine());

            int sum = 0;
            for (int i = 1; i <= input; i++) {
                sum = sum + i;
            }

            System.out.print(sum);
        }
    }
}