Compilare: user.cpp: In function ‘int main()’: user.cpp:17:55: warning: unused variable ‘ok’ [-Wunused-variable] unsigned int n, m, p, t, l, c, k, s, i, j, x=-1, cod, ok, f, s1len, s2len; ^ user.cpp:17:59: warning: unused variable ‘f’ [-Wunused-variable] unsigned int n, m, p, t, l, c, k, s, i, j, x=-1, cod, ok, f, s1len, s2len; ^ user.cpp:17:62: warning: unused variable ‘s1len’ [-Wunused-variable] unsigned int n, m, p, t, l, c, k, s, i, j, x=-1, cod, ok, f, s1len, s2len; ^ user.cpp:17:69: warning: unused variable ‘s2len’ [-Wunused-variable] unsigned int n, m, p, t, l, c, k, s, i, j, x=-1, cod, ok, f, s1len, s2len; ^