7.12.3

7.12.3

include <stdio.h>

int main(void)
{
int odd_number = 0;
int even_number = 0;
int odd_sum = 0;
int even_sum = 0;
int num;

while ( scanf("%d", &num) == 1)
{
if(num != 0)
{
if((num % 2) == 1)
{
odd_sum += num;
++odd_number;
}
else if ((num % 2) == 0)
{
even_sum += num;
++even_number;
}
}
else
break;
}
printf("奇数%d个，平均值是%f；偶数%d个，平均值是%f。\n",
odd_number, (float)odd_sum / odd_number,
even_number, (float)even_sum / even_number);

return 0;
}