/in/foo.cc: In function 'int main()':
/in/foo.cc:12:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for(register int a=0;a<=card[1];a++)
     ^~~
/in/foo.cc:23:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
  printf("%d\n",dp[card[1]][card[2]][card[3]][card[4]]);
  ^~~~~~