Compilare: main.cpp: In function 'int main()': main.cpp:9:9: warning: unused variable 'n' [-Wunused-variable] int n, k, a, b, c, i, Q, A, r1, r2; ^ main.cpp:9:12: warning: unused variable 'k' [-Wunused-variable] int n, k, a, b, c, i, Q, A, r1, r2; ^ main.cpp:9:21: warning: unused variable 'c' [-Wunused-variable] int n, k, a, b, c, i, Q, A, r1, r2; ^