Compilare: main.cpp: In function 'int main()': main.cpp:64:19: warning: unused variable 'a' [-Wunused-variable] 64 | long long a,b,c,d; | ^ main.cpp:64:21: warning: unused variable 'b' [-Wunused-variable] 64 | long long a,b,c,d; | ^ main.cpp:64:23: warning: unused variable 'c' [-Wunused-variable] 64 | long long a,b,c,d; | ^ main.cpp:64:25: warning: unused variable 'd' [-Wunused-variable] 64 | long long a,b,c,d; | ^