Compilare: main.cpp: In function 'int Solve_1()': main.cpp:24:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'void Solve_2()': main.cpp:29:9: warning: 'nod' may be used uninitialized in this function [-Wmaybe-uninitialized] int nod; ^~~