Compilare: main.cpp: In function 'int main()': main.cpp:13:12: warning: unused variable 'i' [-Wunused-variable] int n, i, k, q, p, sc, pc=1, smax, pmax, umax; ^ main.cpp:13:18: warning: unused variable 'q' [-Wunused-variable] int n, i, k, q, p, sc, pc=1, smax, pmax, umax; ^ main.cpp:13:21: warning: unused variable 'p' [-Wunused-variable] int n, i, k, q, p, sc, pc=1, smax, pmax, umax; ^ main.cpp:37:35: warning: 'umax' may be used uninitialized in this function [-Wmaybe-uninitialized] out << pmax << " " << umax << " " << smax; ^~~ main.cpp:37:20: warning: 'pmax' may be used uninitialized in this function [-Wmaybe-uninitialized] out << pmax << " " << umax << " " << smax; ^~~