Compilare: main.cpp: In function 'int main()': main.cpp:67:35: warning: 'ymin' may be used uninitialized in this function [-Wmaybe-uninitialized] int st=0,dr=min(xmax-xmin,ymax-ymin),ans=0; ~~~~^~~~~ main.cpp:67:35: warning: 'ymax' may be used uninitialized in this function [-Wmaybe-uninitialized] main.cpp:67:25: warning: 'xmin' may be used uninitialized in this function [-Wmaybe-uninitialized] int st=0,dr=min(xmax-xmin,ymax-ymin),ans=0; ~~~~^~~~~ main.cpp:67:25: warning: 'xmax' may be used uninitialized in this function [-Wmaybe-uninitialized]