PAT1012数字分类 (20)

#include<iostream>
#include<iomanip>
using namespace std;

int A1[1001];
int A2[1001];
int A3[1001];
int A4[1001];
int A5[1001];

int countA1;
int countA2;
int countA3;
int countA4;
int countA5;


int main()
{
	int n;
	cin>>n;
	int temp;
	while(cin>>temp)
	{
		switch (temp%5) {
		case 0:
			A1[++countA1]=temp;
			break;
		case 1:
			A2[++countA2]=temp;
			break;
		case 2:
			A3[++countA3]=temp;
			break;
		case 3:
			A4[++countA4]=temp;
			break;
		case 4:
			A5[++countA5]=temp;
			break;
		default:
			break;
		}
	}



	int A1dec=0;
	int A1cc=0;
	for(int i=1;i<=countA1;i++)
	{
		if(A1[i]%2==0)
		{
			A1dec+=A1[i];
			A1cc++;
		}



	}


	int A2dec=0;
	bool plus=true;
	for(int i=1;i<=countA2;i++)
	{
		if(plus)
		{
			plus=false;
			A2dec+=A2[i];
		}
		else
		{
			plus=true;
			A2dec-=A2[i];
		}
	}

	int A3dec=countA3;

	double A4dec=0;
	for(int i=1;i<=countA4;i++)
	{
		A4dec+=A4[i];
	}
	A4dec/=countA4;

	int A5dec=0;
	for(int i=1;i<=countA5;i++)
	{
		if(A5dec<A5[i])
		{
			A5dec=A5[i];
		}
	}


	if(A1cc==0)
	{
		cout<<"N";
	}
	else
	{

		cout<<A1dec;
	}

	if(countA2==0)
	{
		cout<<" N";
	}
	else
	{
		cout<<" "<<A2dec;
	}

	if(countA3==0)
	{
		cout<<" N";
	}
	else
	{
		cout<<" "<<A3dec;
	}

	if(countA4==0)
	{
		cout<<" N";
	}
	else
	{
		cout<<setiosflags(ios::fixed);
		cout.precision(1);
		cout<<" "<<A4dec;

	}



	if(countA5==0)
	{
		cout<<" N";
	}
	else
	{
		cout<<" "<<A5dec;
	}

}

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