알고리즘/백준
백준 8393번
hyeonseong
2022. 7. 29. 09:26
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
int sum = 0;
for(int i = 1; i <= n ; i++){
sum += i;
}
System.out.println(sum);
}
}