链接:https://codeforces.com/contest/2/problem/A
The winner of the card game popular in Berland "Berlogging" is determined according to the following rules. If at the end of the game there is only one player with the maximum number of points, he is the winner. The situation becomes more difficult if the number of such players is more than one. During each round a player gains or loses a particular number of points. In the course of the game the number of points is registered in the line "name score", where name is a player's name, and score is the number of points gained in this round, which is an integer number. If score is negative, this means that the player has lost in the round. So, if two or more players have the maximum number of points (say, it equals to m) at the end of the game, than wins the one of them who scored at least m points first. Initially each player has 0 points. It's guaranteed that at the end of the game at least one player has a positive number of points.
Input
The first line contains an integer number n (1 ≤ n ≤ 1000), n is the number of rounds played. Then follow n lines, containing the information about the rounds in "name score" format in chronological order, where name is a string of lower-case Latin letters with the length from 1 to 32, and score is an integer number between -1000 and 1000, inclusive.
Output
Print the name of the winner.
Examples
input
Copy
3 mike 3 andrew 5 mike 2
output
Copy
andrew
input
Copy
3 andrew 3 andrew 2 mike 5
output
Copy
andrew
代码:
#include<bits/stdc++.h>
using namespace std;
long long n,t,k,max1=0;
long long a[100001];
string s[100001];
map<string ,long long >m,q;
main()
{
cin>>n;
for(int i = 1; i <=n; i++)
{
cin >> s[i] >> a[i];
m[s[i]] += a[i];
}
for(int i = 1; i <=n; i++)
{
max1 = max(m[s[i]], max1);
}
string ans;
for(int i =1;i<=n;i++)
{
q[s[i]]+=a[i];
if(q[s[i]]>=max1&&m[s[i]]==max1)
{
ans = s[i];
break;
}
}
cout<<ans;
}

本文介绍了一种用于确定Berlogging卡牌游戏胜者的算法,Berlogging是在Berland流行的卡牌游戏。文章详细解释了游戏规则,即在游戏结束时,如果只有一个玩家拥有最高分数,则该玩家获胜;如果有两个或更多玩家拥有相同最高分数,则首先达到该分数的玩家获胜。通过分析玩家每轮获得的分数,使用C++代码实现了这一逻辑。
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