Compilare: main.cpp: In function 'int add(int, int)': main.cpp:35:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int cauta(int)': main.cpp:40:11: warning: statement has no effect [-Wunused-value] for(st;st <= n;st <<= 1); ^ main.cpp:40:23: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized] for(st;st <= n;st <<= 1); ~~~^~~~~ main.cpp: In function 'void solve()': main.cpp:40:23: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized] for(st;st <= n;st <<= 1); ~~~^~~~~ main.cpp:39:9: note: 'st' was declared here int st, poz; ^~