HDU 1033 Edge

The problem is not difficult, the counter-clockwise time attention, WA has been many times

WA's Code, error
1#include <cstdio>2#include <cstring>3 using namespacestd;4 structpoint{5     intXinty;6}p[3];7 intMain ()8 {9     Charc[205];Ten      while(~SCANF ("%s", C)) { Oneprintf"420 moveto\n310 420 lineto\n"); A  -p[0].x= -;p [0].y=420;p [1].x=310;p [1].y=420; -          for(intI=0; I<strlen (c); i++){ the             if(c[i]=='A'){ -                 if(p[i%3].x==p[i%3+1].x) { -p[i%3+2].y=p[i%3+1].y; -p[i%3+2].x=p[i%3+1].x+p[i%3+1].y-p[i%3].y; +                 } -                 Else{ +p[i%3+2].x=p[i%3+1].x; Ap[i%3+2].y=p[i%3+1].y-p[i%3+1].x+p[i%3].x; at                 } -             } -             Else if(c[i]=='V'){ -                 if(p[i%3].x==p[i%3+1].x) { -p[i%3+2].y=p[i%3+1].y; -p[i%3+2].x=p[i%3+1].x-p[i%3+1].y+p[i%3].y; in                 } -                 Else{ top[i%3+2].x=p[i%3+1].x; +p[i%3+2].y=p[i%3+1].y+p[i%3+1].x-p[i%3].x; -                 } the             } *printf"%d%d lineto\n", p[i%3+2].x,p[i%3+2].y); $         }Panax Notoginseng  -printf"stroke\nshowpage\n"); the     } +  A     return 0; the}

AC Code included

1#include <cstdio>2#include <cstring>3 using namespacestd;4 5 intMain ()6 {7     Charc[205];8      while(~SCANF ("%s", C)) {9printf"420 moveto\n310 420 lineto\n");Ten         intx=310, y=420, len=0; One          for(intI=0; I<strlen (c); i++){ A  -             if(c[i]=='V'){ -  the                 Switch(len) { -                      Case 0: y+=Ten; Break; -                      Case 1: x+=Ten; Break; -                      Case 2: y-=Ten; Break; +                      Case 3: x-=Ten; Break; -                 } +Len= (len+3)%4;// A             } at             Else if(c[i]=='A'){ -                 Switch(len) { -                      Case 2: y+=Ten; Break; -                      Case 1: x-=Ten; Break; -                      Case 0: y-=Ten; Break; -                      Case 3: x+=Ten; Break; in                 } -Len= (len+1)%4; to             } +printf"%d%d lineto\n", x, y); -         } the  *printf"stroke\nshowpage\n"); $     }Panax Notoginseng  -     return 0; the}

HDU 1033 Edge