Compilare: main.cpp: In function 'int main()': main.cpp:14:16: warning: unused variable 'i' [-Wunused-variable] int n, nr, i, st = 1, dr, s = 0, maxi = 0, sol_st, sol_dr; ^ main.cpp:14:27: warning: unused variable 'dr' [-Wunused-variable] int n, nr, i, st = 1, dr, s = 0, maxi = 0, sol_st, sol_dr; ^~ main.cpp:42:52: warning: 'sol_dr' may be used uninitialized in this function [-Wmaybe-uninitialized] cout << maxi << ' ' << sol_st << ' ' << sol_dr - sol_st + 1; ~~~~~~~^~~~~~~~ main.cpp:42:38: warning: 'sol_st' may be used uninitialized in this function [-Wmaybe-uninitialized] cout << maxi << ' ' << sol_st << ' ' << sol_dr - sol_st + 1; ^~~