Compilare: main.cpp: In function 'int main()': main.cpp:83:9: warning: unused variable 'a' [-Wunused-variable] 83 | int a, b, s=0, l0; | ^ main.cpp:83:12: warning: unused variable 'b' [-Wunused-variable] 83 | int a, b, s=0, l0; | ^ main.cpp:90:17: warning: variable 'j' set but not used [-Wunused-but-set-variable] 90 | int k=1, i, j; | ^