Compilare: main.cpp: In function 'long long int query(long long int, long long int, long long int)': main.cpp:170:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'void update(long long int, long long int, long long int)': main.cpp:92:35: warning: 'f' may be used uninitialized in this function [-Wmaybe-uninitialized] for(int i=l; i<(((int)sqrt(m))*f) && i<=r; i++ ){ ~~~~~~~~~~~~~~~^~~ main.cpp: In function 'long long int query(long long int, long long int, long long int)': main.cpp:159:54: warning: 'f' may be used uninitialized in this function [-Wmaybe-uninitialized] for(int i=r; i>( s*( ((int)(sqrt(m)) ) ) ) && i>( f*( ((int)(sqrt(m)) ) ) ); i--){ ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~