Compilare: user.cpp: In function ‘int main()’: user.cpp:3:80: warning: integer overflow in expression [-Woverflow] std::ifstream i("ssm.in");std::ofstream o("ssm.out");int n,x,s=0,j=0,b=-(1<<31),l,r; ^ user.cpp:6:25: warning: ‘r’ may be used uninitialized in this function [-Wmaybe-uninitialized] o<<b<<' '<<l+1<<' '<<r+1; ^ user.cpp:6:15: warning: ‘l’ may be used uninitialized in this function [-Wmaybe-uninitialized] o<<b<<' '<<l+1<<' '<<r+1; ^