Compilare: user.cpp: In function ‘int main()’: user.cpp:12:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d",&n,&m); ^ user.cpp:56:17: warning: ‘z’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(lee[cx[p]][cy[p]]+1<z) ^ user.cpp:49:18: warning: ‘y2’ may be used uninitialized in this function [-Wmaybe-uninitialized] lee[x2][y2]=1; ^ user.cpp:49:18: warning: ‘x2’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:38:16: warning: ‘y1’ may be used uninitialized in this function [-Wmaybe-uninitialized] f[x1][y1]=1; ^ user.cpp:38:16: warning: ‘x1’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:23:13: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(c=='J') ^