/in/foo.cc: In function 'void solve(long long int, long long int, long long int)':
/in/foo.cc:19:12: warning: unused variable 'flag' [-Wunused-variable]
       bool flag = false;
            ^~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:46:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
         for(int j = 0; j < t ; j++)
         ^~~
/in/foo.cc:49:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
   solve(t, h, r);
   ^~~~~