Spoj TGRID

hello_hi 2013-08-27 10:13:38 UTC #1

my program is giving correct output on ideone but WA on spoj..

include

int main()
{
int t, r, c;
scanf("%d",&t);
while(t--)
{
scanf("%d%d",&r,&c);
if(c>r && (r%2==0)&& (r!=1)&&(c!=1)) printf("L\n");
else if(c>r && (r%2!=0)&& (r!=1)&&(c!=1) ) printf("R\n");
else if(c==r &&(r%2==0)&& (r!=1)&&(c!=1)) printf("L\n");
else if(c==r &&(r%2!=0)&& (r!=1)&&(c!=1)) printf("R\n");
else if(r>c && (r%2==0)&& (r!=1)&&(c!=1)) printf("D\n");
else if(r>c && (r%2!=0)&& (r!=1)&&(c!=1)) printf("U\n");
else if(r==1 && c>=r) printf("R\n");
else if(c==1 && r>=c)printf("D\n");

}
return 0;

}

leppyr64 2013-08-27 12:21:37 UTC #2

It's giving correct output on ideone? For how many test cases? Please post the test cases that you have tried that test all of your conditions.

Also, please use code tags when posting code.

hello_hi 2013-08-27 12:55:15 UTC #3

I have tried for these inputs and its giving correct ans on ideone
7 6 U
6 5 D
8 7 D
3 3 R
1 1 R
2 2 L
3 1 D

leppyr64 2013-08-27 13:18:52 UTC #4

for r = 1 to 10
  for c = 1 to 10
    Print r,c

That should give you enough sample data to find our problem. Always test systematically.