spoj.com/problems/TRGRID/
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;
}