Compilare: user.cpp: In function ‘int main()’: user.cpp:38:14: warning: statement has no effect [-Wunused-value] for(x;x<=y;x++)s++; ^ user.cpp:39:14: warning: statement has no effect [-Wunused-value] for(c;c<=d;c++)s1++; ^ user.cpp:9:37: warning: ‘d’ may be used uninitialized in this function [-Wmaybe-uninitialized] int m,n,i,j,s,minim,maxim,x,y,c,d,s1; ^ user.cpp:9:35: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] int m,n,i,j,s,minim,maxim,x,y,c,d,s1; ^ user.cpp:9:33: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] int m,n,i,j,s,minim,maxim,x,y,c,d,s1; ^ user.cpp:9:31: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] int m,n,i,j,s,minim,maxim,x,y,c,d,s1; ^