Compilare: main.cpp:2:19: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] #define DIM 1<<20 + 5 ~~~^~~ main.cpp:12:7: note: in expansion of macro 'DIM' int v[DIM]; ^~~ main.cpp: In function 'int main()': main.cpp:22:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (st.size() >= l){ ~~~~~~~~~~^~~~ main.cpp:29:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (dr.size() > r){ ~~~~~~~~~~^~~