题目链接： https://pintia.cn/problem-sets/994805260223102976/problems/994805311146147840
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| #include <iostream>
using namespace std;
int main() {
int a1 = 0, a2 = 0, a3 = 0, a4 = 0, a5 = 0;
float sum = 0;
int N;
int flag = 0,x=1;
cin >> N;
int arr[N];
for (int i = 0; i < N; ++i) {
cin >> arr[i];
if (arr[i] % 10 == 0) {
a1 += arr[i];
} else if (arr[i] % 5 == 1) {
flag = 1;
a2 += x * arr[i];
x = -x;;
} else if (arr[i] % 5 == 2) {
a3++;
} else if (arr[i] % 5 == 3) {
a4++;
sum += arr[i];
} else if (arr[i] % 5 == 4) { if (arr[i] >= a5) a5 = arr[i]; }
}
if(a1 == 0) printf("N "); else printf("%d ", a1);
if(flag == 0) printf("N "); else printf("%d ", a2);
if(a3 == 0) printf("N "); else printf("%d ", a3);
if(a4 == 0) printf("N "); else printf("%.1f ", sum/a4*1.0);
if(a5 == 0) printf("N"); else printf("%d", a5);
return 0;
}
|