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Nyoj 364 田忌赛马

2014-04-21 20:25 274 查看
题目来源:http://acm.nyist.net/JudgeOnline/problem.php?pid=364

分下面三种情况:

(1)如果田忌最快的马比齐王最快的马快,那么让田忌最快的马与之比试

(2)如果田忌最慢的马比齐王最慢的马快,那么让田忌最慢的与之比试

(3)田忌最慢的马与齐王最快的马比试,如果田忌最慢的马比齐王最快的马慢,kcount--;

#include <iostream>
#include <cstring>
#include <algorithm>
#include <cstdio>

using namespace std;

const int MAXN = 1010;

int main()
{
int iTian[MAXN], iKing[MAXN];//分别储存田忌和齐王的马
int n, kcount, i;
while(~scanf("%d", &n))
{
memset(iTian, 0, sizeof(iTian));
memset(iKing, 0, sizeof(iKing));
for(i = 0; i < n; ++i)
scanf("%d", &iTian[i]);
for(i = 0; i < n; ++i)
scanf("%d", &iKing[i]);
sort(iTian, iTian+n);
sort(iKing, iKing+n);
int iLowTian = 0, iFastTian = n-1, iLowKing = 0, iFastKing = n-1;
kcount = 0;
while(1)
{
if(iLowTian > iFastTian)
break;
if(iTian[iFastTian] > iKing[iFastKing])//如果田忌的快马比齐王的快马快,那么让田忌的快马与齐王的快马比
{
iFastTian--;
iFastKing--;
kcount++;
}
else if(iTian[iLowTian] > iKing[iLowKing])//如果田忌的慢马比齐王的慢马快,那么让田忌的慢马与齐王的慢马比
{
iLowKing++;
iLowTian++;
kcount++;
}
else
{
if(iTian[iLowTian] < iKing[iFastKing])//再否则让田忌的慢马与齐王的快马比
kcount--;
iLowTian++;
iFastKing--;
}
}
printf("%d\n", kcount*200);
}
return 0;
}
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