ZOJ-2321 基本应用

2321：给出运动员的身体素质，决定能踢哪个位置。

简单题。基本分支判断。多值之间输出空格需要处理一下。

#include<stdio.h>
#include<math.h>
#include<iostream>
using namespace std;


int main()
{	
	double speed;
	double weight;
	double strength;
	bool isfirst=true;

	while(1)
	{
		cin>>speed;
		cin>>weight;
		cin>>strength;
		isfirst=true;


		if(speed==0&&weight==0&&strength==0)
			break;

		if(speed<=4.5&&weight>=150&&strength>=200)
		{
			cout<<"Wide Receiver";
			isfirst=false;
		}

		if(speed<=6.0&&weight>=300&&strength>=500)
		{
			if(isfirst)
				isfirst=false;
			else
				cout<<" ";
			cout<<"Lineman";
		}


		if(speed<=5.0&&weight>=200&&strength>=300)
		{
			if(isfirst)
				isfirst=false;
			else
				cout<<" ";
			cout<<"Quarterback";
		}

		if(isfirst)
			cout<<"No positions";

		cout<<endl;

	}

}