define PUSH_POP_SUCCESS 1 define PUSH_POP_ERROR 0 struct _stackbuf { int _collection[STACK_SIZE];int _top;};typedef struct _stackbuf S_STACK;typedef unsigned int u_int_f;// 入栈 u_int_f push(S_STACK *stack, int d){ if (stack->_top >= STACK_SIZE) return PUS...