Compilare: user.cpp: In function ‘int main()’: user.cpp:11:26: warning: unused variable ‘j’ [-Wunused-variable] int mat[175][175],n,m,i,j,xx,yy,xc,yc,x,y,x1,y1; ^ user.cpp:28:15: warning: ‘yy’ may be used uninitialized in this function [-Wmaybe-uninitialized] while(xx!=x1 || yy!=y1) ^ user.cpp:28:2: warning: ‘xx’ may be used uninitialized in this function [-Wmaybe-uninitialized] while(xx!=x1 || yy!=y1) ^