题解 | #奇偶统计#

#include <stdio.h>

int main() {
    int n = 0, odd = 0, even = 0;
    scanf("%d", &n);

    while (n) {
        if (n % 2 == 0)
            even++;
        else
            odd++;
        n--;
    }
    printf("%d %d", odd, even);

    return 0;
}