Compilare: main.cpp: In function 'int add(int, int)': main.cpp:31:1: warning: no return statement in function returning non-void [-Wreturn-type] 31 | } | ^ main.cpp: In function 'int main()': main.cpp:47:13: warning: unused variable 'stele' [-Wunused-variable] 47 | int stele=n+k-1; | ^~~~~ main.cpp:49:19: warning: unused variable 'fact' [-Wunused-variable] 49 | long long fact=1; | ^~~~ main.cpp:34:17: warning: unused variable 'l' [-Wunused-variable] 34 | int n,i,j,k,l,r,z; | ^