CF1773H-HotandCold\(\text{diff:}2600\)询问\((x,y)\)和\((x+1,y)\)和\((x+1,y+1)\)即可将\(x,y\)坐标的范围减半，然后可以在\(3\log_210^6=60\)次询问左右解决这个问题。CF725F-FamilyPhotos\(\text{diff:}2900\)发现有些东西\(A,B\)都不