1012 数字分类 (20 分)

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1012 数字分类 (20 分)

在这里插入图片描述
输入样例 1:
13 1 2 3 4 5 6 7 8 9 10 20 16 18
输出样例 1:
30 11 2 9.7 9
输入样例 2:
8 1 2 4 5 6 7 9 16
输出样例 2:
N 11 2 N 9

AC代码

#include <iostream>
#include <vector>
using namespace std;
int main() {
	int n, num, A1 = 0, A2 = 0, A5 = 0;
	double A4 = 0.0;
	cin >> n;
	vector<int> v[5];
	for (int i = 0; i < n; i++) {
		cin >> num;
		v[num % 5].push_back(num);	//存放各类数字
	}
	for (int i = 0; i < 5; i++) {
		for (int j = 0; j < v[i].size(); j++) {
			if (i == 0 && v[i][j] % 2 == 0) A1 += v[i][j];
			if (i == 1 && j % 2 == 0) A2 += v[i][j];
			if (i == 1 && j % 2 == 1) A2 -= v[i][j];
			if (i == 3) A4 += v[i][j];
			if (i == 4 && v[i][j] > A5) A5 = v[i][j];
		}	//对各类数字进行预处理
	}
	for (int i = 0; i < 5; i++) {
		if (i != 0) printf(" ");
		if (i == 0 && A1 == 0 || i != 0 && v[i].size() == 0) { printf("N"); continue; }
		if (i == 0) printf("%d", A1);
		if (i == 1) printf("%d", A2);
		if (i == 2) printf("%d", v[2].size());
		if (i == 3) printf("%.1f", A4 / v[3].size());
		if (i == 4) printf("%d", A5);
	}	//对各类数字进行处理输出
	return 0;
}

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