This is exactly the sort of task for which See5 was designed. Each case belongs to one of a small number of mutually exclusive classes (negative, primary, secondary, compensated). Properties of every case that may be relevant to its class are provide

实现快速计算24点的游戏，判断输入的4个数是否能通过加减乘除运算得出24的游戏-Fast calculation of 24 points of the game, whether the number 4 input to determine through arithmetic operations that 24 games