Compilare: user.c: In function ‘main’: user.c:8:33: warning: unused variable ‘z’ [-Wunused-variable] int n,m,i,j,p,u,x1,y1,x2,y2,z,lmin,cmin,min,ct; ^ user.c:12:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d",&n,&m); ^ user.c:49:16: warning: ‘y2’ may be used uninitialized in this function [-Wmaybe-uninitialized] lee[x2][y2]=1; ^ user.c:49:16: warning: ‘x2’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.c:38:14: warning: ‘y1’ may be used uninitialized in this function [-Wmaybe-uninitialized] f[x1][y1]=1; ^ user.c:38:14: warning: ‘x1’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.c:23:15: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(c=='J') ^