题解 | #记负均正II#
记负均正II
http://www.nowcoder.com/practice/64f6f222499c4c94b338e588592b6a62
和记负均正1一样的方法。
#include"stdio.h"
#include"string.h"
int main(void) {
int num, a1 = 0, a2 = 0;
double avg = 0;
while (scanf("%d", &num) != EOF) {
if (num > 0) {
a1++;
avg = (avg * (a1 - 1) + num) / a1;
} else if (num < 0) {
a2 ++;
}
}
printf("%d\n%.1lf", a2, avg);
}
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