题解 | #记负均正#
记负均正
https://www.nowcoder.com/practice/6abde6ffcc354ea1a8333836bd6876b8
#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
int main() {
int n;
scanf("%d", &n);
int arr[100000];
int i = 0;
int count = 0, sum = 0, count2 = 0;
while (i < n) {
scanf("%d", &arr[i]);
i++;
}
for (i = 0; i < n; i++) {
if (arr[i] < 0)
count += 1;
else if (arr[i] > 0) {
sum += arr[i];
count2 += 1;
}
}
if(count2!=0)
{float avg = (float)sum / count2;
printf("%d %.1f", count, avg);}
else {
printf("%d %.1f",count,0);
}
return 0;
}
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