Compilare: main.cpp: In function 'int main()': main.cpp:11:15: warning: unused variable 'dr' [-Wunused-variable] int n,k,i,st,dr,cnt=0,sol=0; ^~ main.cpp:44:27: warning: iteration 30 invokes undefined behavior [-Waggressive-loop-optimizations] if(biti[i]> 0) ~~~~~~^ main.cpp:40:34: note: within this loop for ( int i = 0 ; i <= 30; ++i) ~~^~~~~ main.cpp:26:19: warning: iteration 30 invokes undefined behavior [-Waggressive-loop-optimizations] if(biti[i]> 0) ~~~~~~^ main.cpp:22:26: note: within this loop for ( int i = 0 ; i <= 30; ++i) ~~^~~~~