POJ2418--- Hardwood Species

#include<stdio.h>
#include<string.h>
#include<algorithm>
#include<iostream>
using namespace std;
struct e
{
    char name[32];
    int b;
}a[1000010];
int cmp(e a,e b)
{
    return strcmp(a.name,b.name)<0;
}
int main()
{   int n=0;
    int k=0,flag;
    while(gets(a
.name)&&strlen(a
.name))
    n++;
    double op=100.0/n;
    //printf("%lf",p);
    sort(a,a+n,cmp);

    int p=1;
    for(int i=0;i<n;i++){
        if(strcmp(a[i].name,a[i+1].name)==0) p++;
        else {printf("%s %.4f\n",a[i].name,p*op);p=1;}
        }
}