Compilare: user.cpp: In function ‘int liniarize(int, int)’: user.cpp:41:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int liniarize2(int)’: user.cpp:55:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:78:9: warning: unused variable ‘sns’ [-Wunused-variable] int sns,a,b; ^~~ user.cpp:102:30: warning: iteration 19 invokes undefined behavior [-Waggressive-loop-optimizations] for(i=1;i<=20;i++) put[i]=2*put[i-1]; ~~~~~~^~~~~~~~~~~ user.cpp:102:14: note: within this loop for(i=1;i<=20;i++) put[i]=2*put[i-1]; ~^~~~