标签：des style blog io color os ar for sp
Description
Vasya has been playing Plane of Tanks with his friends the whole year. Now it is time to divide the participants into several categories depending on their results.
A player is given a non-negative integer number of points in each round of the Plane of Tanks. Vasya wrote results for each round of the last year. He has n records in total.
In order to determine a player‘s category consider the best result obtained by the player and the best results of other players. The player belongs to category:
When the percentage is calculated the player himself is taken into account. That means that if two players played the game and the first one gained 100 points and the second one 1000 points, then the first player‘s result is not worse than the result that 50% of players have, and the second one is not worse than the result that 100% of players have.
Vasya gave you the last year Plane of Tanks results. Help Vasya determine each player‘s category.
Input
The first line contains the only integer number n (1 ≤ n ≤ 1000) — a number of records with the players‘ results.
Each of the next n lines contains a player‘s name and the amount of points, obtained by the player for the round, separated with a space. The name contains not less than 1 and no more than 10 characters. The name consists of lowercase Latin letters only. It is guaranteed that any two different players have different names. The amount of points, obtained by the player for the round, is a non-negative integer number and does not exceed 1000.
Output
Print on the first line the number m — the number of players, who participated in one round at least.
Each one of the next m lines should contain a player name and a category he belongs to, separated with space. Category can be one of the following: "noob", "random", "average", "hardcore" or "pro" (without quotes). The name of each player should be printed only once. Player names with respective categories can be printed in an arbitrary order.
Sample Input
5
vasya 100
vasya 200
artem 100
kolya 200
igor 250
4
artem noob
igor pro
kolya random
vasya random
3
vasya 200
kolya 1000
vasya 1000
2
kolya pro
vasya pro
#include<iostream> #include<cstdio> #include<map> #include<string> using namespace std; int main() { int i,j,k,n,x,sum,cnt; string str; map<string,int> score; map<string,string> cate; // scanf("%d",&n); cin>>n; while(n--) { cin>>str>>x; if(score[str]<x) score[str]=x; } map<string,int>::iterator it,it2; cnt=score.size(); for(it=score.begin();it!=score.end();it++) { sum=0; for(it2=score.begin();it2!=score.end();it2++) { if(it->second<it2->second) sum++; } double p=sum*1.0/cnt; if(p>0.5) cate[it->first]="noob"; else if(p>0.2&&p<=0.5) cate[it->first]="random"; else if(p>0.1&&p<=0.2 ) cate[it->first]="average"; else if(p>0.01&&p<=0.1) cate[it->first]="hardcore"; else cate[it->first]="pro"; } cout<<cnt<<endl;//忘记输出 for(map<string,string>::iterator tt=cate.begin();tt!=cate.end();tt++) { cout<<tt->first<<" "<<tt->second<<endl; } return 0; }
标签：des style blog io color os ar for sp
原文地址：http://www.cnblogs.com/767355675hutaishi/p/4066927.html
