PAT Class A 1066~1070|C++ implementation

PAT Grade A 1066 Root of AVL Tree (25 points)|C++ implementation

PAT Grade A 1067 Sort with Swap(0, i) (25 points)|C++ implementation

PAT Grade A 1068 Find More Coins (30 points)|C++ implementation

PAT Grade A 1069 The Black Hole of Numbers (20 points)|C++ implementation

PAT Grade A 1070 Mooncake (25 points)|C++ implementation