Compilare: main.cpp: In function 'int main()': main.cpp:37:38: warning: unused variable 'p' [-Wunused-variable] int n, k, c, x, nr, rasturnat=0, p; ^ main.cpp: In function 'int nrcif2(int, int)': main.cpp:22:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int nrcif3(int, int)': main.cpp:34:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp:27:14: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] y = y*10 + n%10; ~^~~