HNU 12845 Ballot Analyzing Device
题目链接:http://acm.hnu.cn/online/?action=problem&type=show&id=12845&courseid=270
解题报告:有m个认给n个人投票,n个认位置是固定的,输入一行字符,X表示会投给这个人,例如X....这个表示会投给第一个人,然后让你分别求出这n个人分别占总
票数的百分之几,如果两个人票数相同,则按照原来固定的顺序。
水题,注意任意一个人投的票要有效的话必须满足至少并且只能投一个人。
#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
#include<cstdlib>
using namespace std;
struct node
{
char name[];
double num,ans;
int cixu;
}men[];
char str[];
bool cmp(node a,node b)
{
if(a.num == b.num)
return a.cixu < b.cixu;
return a.num > b.num;
}
int main()
{
int n,m;
while(scanf("%d%d",&n,&m)!=EOF)
{
for(int i = ;i < n;++i)
{
scanf("%s",men[i].name);
men[i].num = ;
men[i].cixu = i;
}
strcpy(men[n].name,"Invalid");
int tt = m;
while(tt--)
{
scanf("%s",str);
int f = -;
for(int i = ;i < n;++i)
if(str[i] == 'X')
{
if(f == -) f = i;
else f = n;
}
if(f == -) f = n;
men[f].num++;
}
for(int i = ;i <= n;++i)
men[i].ans = 100.0 * men[i].num / (double)m;
sort(men,men+n,cmp);
for(int i = ;i <= n;++i)
printf("%s %.2lf%%\n",men[i].name,men[i].ans);
}
return ;
}
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