题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=3345点击打开链接
War Chess
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2935 Accepted Submission(s): 736
Problem Description War chess is hh's favorite game:
In this game, there is an N * M battle map, and every player has his own Moving Val (MV). In each round, every player can move in four directions as long as he has enough MV. To simplify the problem, you are given your position and asked to output which grids you can arrive.
In the map:
'Y' is your current position (there is one and only one Y in the given map).
'.' is a normal grid. It costs you 1 MV to enter in this gird.
'T' is a tree. It costs you 2 MV to enter in this gird.
'R' is a river. It costs you 3 MV to enter in this gird.
'#' is an obstacle. You can never enter in this gird.
'E's are your enemies. You cannot move across your enemy, because once you enter the grids which are adjacent with 'E', you will lose all your MV. Here “adjacent” means two grids share a common edge.
'P's are your partners. You can move across your partner, but you cannot stay in the same grid with him final, because there can only be one person in one grid.You can assume the Ps must stand on '.' . so ,it also costs you 1 MV to enter this grid.
Input The first line of the inputs is T, which stands for the number of test cases you need to solve.
Then T cases follow:
Each test case starts with a line contains three numbers N,M and MV (2<= N , M <=100,0<=MV<= 65536) which indicate the size of the map and Y's MV.Then a N*M two-dimensional array follows, which describe the whole map.
Output Output the N*M map, using '*'s to replace all the grids 'Y' can arrive (except the 'Y' grid itself). Output a blank line after each case.
Sample Input
5
3 3 100
...
.E.
..Y
5 6 4
......
....PR
..E.PY
...ETT
....TT
2 2 100
.E
EY
5 5 2
.....
..P..
.PYP.
..P..
.....
3 3 1
.E.
EYE
...
Sample Output
...
.E*
.*Y
...***
..**P*
..E*PY
...E**
....T*
.E
EY
..*..
.*P*.
*PYP*
.*P*.
..*..
.E.
EYE
.*.
Author shǎ崽
Source HDU2010省赛集训队选拔赛（校内赛）
Recommend lcy
这道题曾经打好久找不出错 过了一个月之后又找 发现当碰到ER这种跟ET这种的时候写错
这道题挺麻烦 。。条件很多
碰到T兵力-2
R-3
E附近变为0
P不能停可以过
# E不能停不能过
然后要你输出所有可以到的地方
得记忆化搜索 不然会t
慢慢模拟 加油。。
#include <stdio.h>
#include <stdlib.h>
#include <iostream>
#include<algorithm>
#include <math.h>
#include <string.h>
#include <limits.h>
#include <string>
#include <queue>
#include <stack>
using namespace std;
int n,m,stepstep;
int book[1111][1111];
char mmap[1111][1111];
int dir[4][2]={1,0,-1,0,0,1,0,-1};
int xx;int yy=0;
struct xjy
{
int x;
int y;
int step;
bool operator < (const xjy &r)const
{
return step<r.step;
}
};
int judgeE(int x,int y)
{
if(mmap[x+1][y]=='E'||mmap[x-1][y]=='E'||mmap[x][y+1]=='E'||mmap[x][y-1]=='E')
return 1;
return 0;
}
void bfs()
{
priority_queue<xjy> q;
xjy mid;
mid.x=xx;mid.y=yy;mid.step=stepstep;
q.push(mid);
while(!q.empty())
{
mid=q.top();
q.pop();
xjy midmid;
midmid=mid;
//book[midmid.x][midmid.y]=midmid.step;
//printf("%d %d %d\n",mid.x,mid.y,mid.step);
if(mmap[mid.x][mid.y]!='P'&&mmap[mid.x][mid.y]!='Y')
{
mmap[mid.x][mid.y]='*';
}
if((mid.step>0&&book[mid.x][mid.y]<=mid.step))
{
for(int p=0;p<=3;p++)
{
midmid.x=mid.x+dir[p][0];
midmid.y=mid.y+dir[p][1];
if(mmap[midmid.x][midmid.y]=='#'||mmap[midmid.x][midmid.y]=='Y'||mmap[midmid.x][midmid.y]=='E'||book[midmid.x][midmid.y]>=midmid.step)
{
continue;
}
else if(midmid.x<=0||midmid.x>n||midmid.y<=0||midmid.y>m)
continue;
else if(mmap[midmid.x][midmid.y]=='R'&&midmid.step>=3)
{
if(judgeE(midmid.x,midmid.y))
{
int sstep=midmid.step;
midmid.step=0;
if(book[midmid.x][midmid.y]<midmid.step)
{
book[midmid.x][midmid.y]=0;
q.push(midmid);
}
midmid.step=sstep;
}
else if(book[midmid.x][midmid.y]<(midmid.step-3))
{
midmid.step-=3;
book[midmid.x][midmid.y]=midmid.step;
q.push(midmid);
midmid.step+=3;
}
else
continue;
}
else if(mmap[midmid.x][midmid.y]=='T'&&midmid.step>=2)
{
if(judgeE(midmid.x,midmid.y))
{
int sstep=midmid.step;
midmid.step=0;
if(book[midmid.x][midmid.y]<midmid.step)
{
book[midmid.x][midmid.y]=0;
q.push(midmid);
}
midmid.step=sstep;
}
else if(book[midmid.x][midmid.y]<(midmid.step-2))
{
midmid.step-=2;
book[midmid.x][midmid.y]=midmid.step;
q.push(midmid);
midmid.step+=2;
}
else
continue;
}
else if((mmap[midmid.x][midmid.y]=='P'||mmap[midmid.x][midmid.y]=='.'||mmap[midmid.x][midmid.y]=='*')&&midmid.step>=1)
{
if(judgeE(midmid.x,midmid.y))
{
int sstep=midmid.step;
midmid.step=0;
if(book[midmid.x][midmid.y]<midmid.step)
{
book[midmid.x][midmid.y]=0;
q.push(midmid);
}
midmid.step=sstep;
}
else if(book[midmid.x][midmid.y]<(midmid.step-1))
{
midmid.step-=1;
book[midmid.x][midmid.y]=midmid.step;
q.push(midmid);
midmid.step+=1;
}
else
continue;
}
}
}
}
}
int main()
{
int t=0;
scanf("%d",&t);
while(t--)
{
xx=yy=0;
memset(mmap,'#',sizeof(mmap));
memset(book,-1,sizeof(book));
scanf("%d%d%d",&n,&m,&stepstep);
getchar();
for(int i=1;i<=n;i++)
{
for(int j=1;j<=m;j++)
{
scanf("%c",&mmap[i][j]);
if(mmap[i][j]=='Y')
{
xx=i;yy=j;
book[i][j]=stepstep;
}
}
getchar();
}
bfs();
for(int i=1;i<=n;i++)
{
for(int j=1;j<=m;j++)
printf("%c",mmap[i][j]);
printf("\n");
}
}
}