poj 2070（水题，注意空格）

#include<iostream>
#include<cstdio>
using namespace std;
bool wr(double sp,double w,double s){
    if(sp<=4.5&&w>=150&&s>=200)return true;
    else    return false;
}
bool l(double sp,double w,double s){
    if(sp<=6.0&&w>=300&&s>=500)return true;
    else return false;
}
bool q(double sp,double w,double s){
    if(sp<=5.0&&w>=200&&s>=300)return true;
    else return false;
}
int main(){
    double sp,w,s;
    bool flag;
    char data[3][15] = {"Wide Receiver","Lineman","Quarterback"};
    int n,i,j;
    while(scanf("%lf%lf%lf",&sp,&w,&s)==3&&!(sp==0&&w==0&&s==0)){
        flag = true;
        if(sp<=4.5&&w>=150&&s>=200){
            printf("%s ",data[0]);
            flag = false;
        }
        if(sp<=6.0&&w>=300&&s>=500){
            printf("%s ",data[1]);
            flag = false;
        }
        if(sp<=5.0&&w>=200&&s>=300){
            printf("%s ",data[2]);
            flag = false;
        }
        if(flag)printf("No positions");
        printf("\n");
    }
    return 0;
}