백준#8393 합 (https://www.acmicpc.net/problem/8393)
코드 - Python
n = int(input()); sum = 0
for i in range(n+1):
sum += i
print(sum)
코드 - Java
import java.util.Scanner;
public class Main {
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
sc.close();
int sum = 0;
for (int i = 1; i <= n ; ++i){
sum += i;
}
System.out.println(sum);
}
}