以下程序从键盘读入20个数据到数组中, 统计其中正数的个数, 并计算它们之和。请填空。#include int main(void){int i, a[20], sum, count;sum = count = 0;for (i = 0; i < 20; i++)scanf("%d", &a[i]);for (i = 0; i < 20; i++)if (________){________;sum=________;}printf("sum=%d, count=%d\n", sum, count);return 0;}