Compilare: main.cpp: In function 'int stiu_sa_fac_subprogram(int)': main.cpp:48:1: warning: control reaches end of non-void function [-Wreturn-type] 48 | } | ^ main.cpp: In function 'int main()': main.cpp:55:13: warning: iteration 20 invokes undefined behavior [-Waggressive-loop-optimizations] 55 | s[i]=stiu_sa_fac_subprogram(i); | ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:53:19: note: within this loop 53 | for(int i=1; i<=21; i++) | ~^~~~