题解 | #汽水瓶#

#include <stdio.h>

//11.52-11.56 5分钟
//2个空瓶 = 1份汽水
int main() {
    int num = 0;
    while(scanf("%d", &num)) {
        if (num == 0) {
            break;
        }

        int count = num/2;
        printf("%d\n", count);
    }
    return 0;
}

送分