/in/foo.cc: In function 'int main()':
/in/foo.cc:78:1: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
 for(int i=1;i<=19;i++)
 ^~~
/in/foo.cc:81:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
  long long ans=0,now=0;
  ^~~~