Compilare: main.cpp: In function 'int Print()': main.cpp:17:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int Backtrack(int)': main.cpp:53:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:56:7: warning: unused variable 'i' [-Wunused-variable] int i; ^