Compilare: user.cpp: In function ‘int main()’: user.cpp:9:19: warning: variable ‘n2’ set but not used [-Wunused-but-set-variable] int n,m,n1,m1,n2,s1,s2,s3,s4,m2,h,i,j,i2,max=-300000000; ^ user.cpp:9:34: warning: variable ‘m2’ set but not used [-Wunused-but-set-variable] int n,m,n1,m1,n2,s1,s2,s3,s4,m2,h,i,j,i2,max=-300000000; ^