Compilare: user.c: In function ‘main’: user.c:52:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(lee[cx[p]+dx[i]][cy[p]+dy[i]]==0 && a[cx[p]+dx[i]][cy[p]+dy[i]]==' ' && f[cx[p]+dx[i]][cy[p]+dy[i]]==f[cx[p]][cy[p]]-1) ^ user.c:11:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("rj.in","r",stdin); ^ user.c:12:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("rj.out","w",stdout); ^ user.c:13:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.c:41:16: warning: ‘y2’ may be used uninitialized in this function [-Wmaybe-uninitialized] lee[x2][y2]=1; ^ user.c:41:16: warning: ‘x2’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.c:28:14: warning: ‘y1’ may be used uninitialized in this function [-Wmaybe-uninitialized] f[x1][y1]=1; ^ user.c:28:14: warning: ‘x1’ may be used uninitialized in this function [-Wmaybe-uninitialized]