Compilare: user.cpp: In function ‘int SSM(int)’: user.cpp:20:29: warning: variable ‘s1’ set but not used [-Wunused-but-set-variable] int s= 0, mx= -(1<<30), s1, s2, sf; ^ user.cpp:20:33: warning: variable ‘s2’ set but not used [-Wunused-but-set-variable] int s= 0, mx= -(1<<30), s1, s2, sf; ^ user.cpp: In function ‘int main()’: user.cpp:39:30: warning: unused variable ‘R’ [-Wunused-variable] int n, k, Max= -(1<<30), R= 0; ^