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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.  
  25.         for(i=0;i<=length;i=i+2){
  26.  
  27.             if(name[i]=='U'){
  28.                 if(grid[x1][y1+1]==1){
  29.  
  30.                   y1++;
  31.                 }
  32.             }
  33.                 else if(name[i]=='D'){
  34.                     if(grid[x1][y1-1]==1){
  35.                         y1--;
  36.                     }
  37.                 }
  38.                 else if(name[i]=='L'){
  39.                     if(grid[x1-1][y1]==1){
  40.                         x1--;
  41.                     }
  42.                 }
  43.                 else if(name[i]=='R'){
  44.                     if(grid[x1+1][y1]==1){
  45.                         x1++;
  46.                     }
  47.                 }
  48.  
  49.         }
  50.         for(j=1;j<=length;j=j+2){
  51.             if(name[j]=='U'){
  52.                 if(grid[x2][y2+1]==1){
  53.                     y2++;
  54.                 }
  55.             }
  56.             else if(name[j]=='D'){
  57.                 if(grid[x2][y2-1]==1){
  58.                     y2--;
  59.                 }
  60.             }
  61.             else if(name[j]=='L'){
  62.                 if(grid[x2-1][y2]==1){
  63.                     x2--;
  64.                 }
  65.             }
  66.             else if(name[j]=='R'){
  67.                 if(grid[x2+1][y2]==1){
  68.                     x2++;
  69.                 }
  70.             }
  71.         }
  72.  
  73.         if(x1==x2 || y1==y2){
  74.             printf("COLLISION\n");
  75.         }
  76.         else {
  77.             printf("SAFE\n");
  78.         }
  79.  
  80.  
  81.  
  82.     }
  83.  
  84.     return 0;
  85.  
  86. }
  87.  
Success #stdin #stdout 0s 2160KB
comments (?)
stdin
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4
0 0 1 0 LL
0 0 3 0 RLRL
7 7 6 7 RRU
0 0 5 5 LRLRL
stdout
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COLLISION
COLLISION
COLLISION
SAFE
https://ideone.com/26VUhq
language:
C (gcc 8.3)
created:
8 years ago
visibility:
secret

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