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P96_2.cpp
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#include<stdio.h>
#include <stdlib.h>
#define Max 10
struct stack{
char data[Max];
int top;
};
bool isEmpty(stack s){
if(s.top == -1){
return true;
}
return false;
}
bool isFull(stack s){
if(s.top == Max - 1){
return true;
}
return false;
}
bool Push(stack &s, char x){
if(isFull(s)){
printf("栈满!!!");
return false;
}
s.data[s.top++] = x;
return true;
}
bool Pop(stack &s, char &x){
if(isEmpty(s)){
printf("栈空!!!");
return false;
}
else{
x = s.data[s.top--];
}
}
void Sort(char str[]){
stack s;
s.top = -1;
char ans[Max + 1];
int j = 0;
for(int i = 0; i < Max; i++){
if(str[i] == 'H'){
Push(s, str[i]);
}
else{
ans[j++] = str[i];
}
}
char c; // 用来接收返回值
while(!isEmpty(s)){
Pop(s, c);
ans[j++] = c;
}
for(int i = 0; i < Max; i++){
printf("%c", ans[i]);
}
}
int main(){
char str[Max] = "HSHSSSHH";
Sort(str);
return 0;
}