202401-programming-assignments/【额外练习】选择结构/7-14 选择-N以内所有正整数和.c

#include <stdio.h>

int main() {
    int n;
    int sum = 0;

    scanf("%d", &n);

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

    printf("%d\n", sum);

    return 0;
}