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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <math.h>
  4. #include <string.h>
  5. #include <ctype.h>
  6.  
  7. int main(){
  8.     int grid[8][8];
  9.     int i,j,t,kase,x1,y1,x2,y2,length;
  10.     char name[100];
  11.     for(i=0;i<8;i++){
  12.         for(j=0;j<8;j++){
  13.             grid[i][j]=1;
  14.         }
  15.     }
  16.     scanf("%d",&t);
  17.  
  18.  
  19.     for(kase=1;kase<=t;kase++){
  20.         scanf("%d %d %d %d %s",&x1,&y1,&x2,&y2,name);
  21.  
  22.         length=0;
  23.         length=strlen(name)-1;
  24.         for(i=0;i<length;i=i+2){
  25.  
  26.             if(name[i]=='U'){
  27.                 if(grid[x1][y1+1]==1){
  28.  
  29.                   y1++;
  30.                 }
  31.             }
  32.                 else if(name[i]=='D'){
  33.                     if(grid[x1][y1-1]==1){
  34.                         y1--;
  35.                     }
  36.                 }
  37.                 else if(name[i]=='L'){
  38.                     if(grid[x1-1][y1]==1){
  39.                         x1--;
  40.                     }
  41.                 }
  42.                 else if(name[i]=='R'){
  43.                     if(grid[x1+1][y1]==1){
  44.                         x1++;
  45.                     }
  46.                 }
  47.  
  48.         }
  49.         for(j=1;j<length;j=j+2){
  50.             if(name[j]=='U'){
  51.                 if(grid[x2][y2+1]==1){
  52.                     y2++;
  53.                 }
  54.             }
  55.             else if(name[j]=='D'){
  56.                 if(grid[x2][y2-1]==1){
  57.                     y2--;
  58.                 }
  59.             }
  60.             else if(name[j]=='L'){
  61.                 if(grid[x2-1][y2]==1){
  62.                     x2--;
  63.                 }
  64.             }
  65.             else if(name[j]=='R'){
  66.                 if(grid[x2+1][y2]==1){
  67.                     x2++;
  68.                 }
  69.             }
  70.         }
  71.         if(x1==x2 && y1==y2){
  72.             printf("Case %d: COLLISION\n",kase);
  73.         }else {
  74.             printf("Case %d: SAFE\n",kase);
  75.         }
  76.  
  77.  
  78.     }
  79.  
  80.     return 0;
  81.  
  82. }
  83.  
Success #stdin #stdout 0s 2160KB
comments (?)
stdin
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3 
0 0 3 0 RLRL 
7 7 6 7 RRU 
0 0 5 5 LRLRL
stdout
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Case 1: COLLISION
Case 2: COLLISION
Case 3: SAFE
https://ideone.com/gFx4qd
language:
C (gcc 8.3)
created:
8 years ago
visibility:
secret

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