OJ-Problems-Source/HDOJ/4231_autoAC.cpp
2016-09-04 15:25:29 +08:00

190 lines
5.2 KiB
C++

#include <stdio.h>
#include <iostream>
#include <string.h>
#include <stdlib.h>
using namespace std;
#define M 105
struct info
{
char side;
int sou;
int v;
};
info fold[30];
int w,h,n;
int we,he;
int x,y;
void getdata(void);
int cal(int ws,int hs,int px,int py,int step);
int main()
{
while (scanf("%d%d%d",&w,&h,&n),w+h+n)
{
getdata();
printf("%d\n",cal(we,he,x,y,n));
}
return 0;
}
void getdata(void)
{
int i;
we=w;
he=h;
for (i=1;i<=n;i++)
{
scanf(" %c%d",&fold[i].side,&fold[i].v);
switch(fold[i].side)
{
case 'T':
case 'B':
fold[i].sou=he;
if (he-fold[i].v>=fold[i].v)
he-=fold[i].v;
else
{
he=fold[i].v;
/*fold[i].v=he-fold[i].v;
fold[i].side=fold[i].side=='B'?'T':'B';
he-=fold[i].v;*/
}
break;
case 'L':
case 'R':
fold[i].sou=we;
if (we-fold[i].v>=fold[i].v)
we-=fold[i].v;
else
{
we=fold[i].v;
/*fold[i].v=we-fold[i].v;
fold[i].side=fold[i].side=='R'?'L':'R';
we-=fold[i].v;*/
}
break;
}
}
scanf("%d%d",&x,&y);
}
int cal(int ws,int hs,int px,int py,int step)
{
int ans=0;
int line;
if (step<1)
return 1;
else
{
switch (fold[step].side)
{
case 'T':
if (hs>fold[step].v)
{
if (py<hs-fold[step].v)
{
ans+=cal(ws,hs+fold[step].v,px,py,step-1);
}
else
{
ans+=cal(ws,hs+fold[step].v,px,py,step-1);
ans+=cal(ws,hs+fold[step].v,px,hs+(hs-py),step-1);
}
}
else
{
line=2*fold[step].v-fold[step].sou;
if (py>line)
{
ans+=cal(ws,fold[step].sou,px,hs+(hs-py)-line,step-1);
ans+=cal(ws,fold[step].sou,px,py-line,step-1);
}
else
{
ans+=cal(ws,fold[step].sou,px,hs+(hs-py)-line,step-1);
}
}
break;
case 'B':
if (hs>fold[step].v)
{
if (py>fold[step].v)
{
ans+=cal(ws,hs+fold[step].v,px,py+fold[step].v,step-1);
}
else
{
ans+=cal(ws,hs+fold[step].v,px,py+fold[step].v,step-1);
ans+=cal(ws,hs+fold[step].v,px,fold[step].v-py,step-1);
}
}
else
{
line=2*fold[step].v-fold[step].sou;
if (py<hs-line)
{
ans+=cal(ws,fold[step].sou,px,py+fold[step].v,step-1);
ans+=cal(ws,fold[step].sou,px,fold[step].v-py,step-1);
}
else
{
ans+=cal(ws,fold[step].sou,px,fold[step].v-py,step-1);
}
}
break;
case 'L':
if (ws>fold[step].v)
{
if (px>fold[step].v)
{
ans+=cal(ws+fold[step].v,hs,px+fold[step].v,py,step-1);
}
else
{
ans+=cal(ws+fold[step].v,hs,px+fold[step].v,py,step-1);
ans+=cal(ws+fold[step].v,hs,fold[step].v-px,py,step-1);
}
}
else
{
line=2*fold[step].v-fold[step].sou;
if (px<ws-line)
{
ans+=cal(fold[step].sou,hs,px+fold[step].v,py,step-1);
ans+=cal(fold[step].sou,hs,fold[step].v-px,py,step-1);
}
else
{
ans+=cal(fold[step].sou,hs,fold[step].v-px,py,step-1);
}
}
break;
case 'R':
if (ws>fold[step].v)
{
if (px<ws-fold[step].v)
{
ans+=cal(fold[step].sou,hs,px,py,step-1);
}
else
{
ans+=cal(fold[step].sou,hs,px,py,step-1);
ans+=cal(fold[step].sou,hs,ws+(ws-px),py,step-1);
}
}
else
{
line=2*fold[step].v-fold[step].sou;
if (px>line)
{
ans+=cal(fold[step].sou,hs,px-line,py,step-1);
ans+=cal(fold[step].sou,hs,ws+(ws-px)-line,py,step-1);
}
else
{
ans+=cal(fold[step].sou,hs,ws+(ws-px)-line,py,step-1);
}
}
break;
}
}
return ans;
}