题解 | #记负均正II#

#include <stdio.h>

int main() {
    int sum = 0, num = 0, nnum = 0, temp;
    while (scanf("%d", &temp) != EOF) {
        if(temp >= 0) {
            sum += temp;
            num++;
        } else {
            nnum++;
        }
        
    }
    printf("%d\n%.1f", nnum, num == 0 ? 0:(float)sum/(float)num);
    return 0;
}