/in/foo.cc: In function 'int main()':
/in/foo.cc:49:35: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::deque<int>::size_type {aka long unsigned int}' [-Wformat=]
    printf("Size = %d\n",que.size());
                                   ^
/in/foo.cc:71:31: warning: unused variable 'ans' [-Wunused-variable]
     int left=0,right=maxx,mid,ans=0;
                               ^~~