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| #include<iostream>
using namespace std;
#define MaxSize 20
typedef struct {
char data[MaxSize];
int top;
}SqStack;
bool initStack(SqStack &s){
s.top = -1;
}
bool push(SqStack &s,char e){
if(s.top==MaxSize-1) return false;
s.data[++s.top] = e;
return true;
}
bool pop(SqStack &s,char &e){
if(s.top == -1) return false;
e = s.data[s.top--];
return true;
}
bool Empty(SqStack s){
if(s.top == -1) return true;
else return false;
}
bool brackCheck(char str[],int length){
SqStack s;
if(initStack(s)) cout<<"initStack yes\n";
else {
cout<<"initStack error\n";
return false;
}
for(int i=0;i<length;i++){
if(str[i]=='(' || str[i]=='{' || str[i]=='[') {
push(s,str[i]);
}
else {
char topELem;
if(!pop(s,topELem)) return false;
if(str[i]==')' && topELem!='(') return false;
if(str[i]=='}' && topELem!='{') return false;
if(str[i]==']' && topELem!='[') return false;
}
}
return Empty(s);
}
int main(){
char syntan[] = {'(','(','[','[',']',']',')',')'};
int length = 8;
if(brackCheck(syntan,length)) cout<<"correct\n";
else cout<<"not correct\n";
return 0;
}
|
