Compilare: main.cpp: In function 'int main()': main.cpp:35:13: warning: unused variable 'i' [-Wunused-variable] 35 | int n,d,i,x,prev = 0; | ^ main.cpp:35:17: warning: unused variable 'prev' [-Wunused-variable] 35 | int n,d,i,x,prev = 0; | ^~~~ main.cpp: In function 'long long int nrp(int)': main.cpp:31:1: warning: control reaches end of non-void function [-Wreturn-type] 31 | } | ^