蒟蒻求助！看起来好像没问题，但运行就很渣。。

Dreaming_Zhong @ 2022-08-04 10:54:47

#include<bits/stdc++.h>
using namespace std;

stack<int> stk;
bool vis[105];
int main(){
    memset(vis,0,sizeof(vis));
    string s;
    cin>>s;
    for(int i=0;i<s.size();i++){
        if(s[i]=='('||s[i]=='['||s[i]=='{'){
            stk.push(i);
        }else{
            int xx=stk.top();
            if(stk.empty()||s[i]!=s[xx]){
                vis[i]=1;
            }else{
                 stk.pop();
            }
        }
    }
    while(!stk.empty()){
        int xx=stk.top();
        vis[xx]=1;
        stk.pop();
    }
    for(int i=0;i<s.size();i++){
        if(!vis[i]) printf("%c",s[i]);
        else{
            if(s[i]=='('||s[i]==')') printf("()");
            if(s[i]=='['||s[i]==']') printf("[]");
            if(s[i]=='{'||s[i]=='}') printf("{}");
        }
    }
}

by shitouFL @ 2022-08-05 11:51:59

666

by Dreaming_Zhong @ 2022-08-07 22:50:41

@shitouFL 这是啥意思？是嘲讽吗？【震惊】

by Dreaming_Zhong @ 2022-08-07 22:52:42

@shitouFL 大神啊！看出来就给个具体点的回复呗！本蒟蒻太菜了！！！救救孩子吧！！！！

by shitouFL @ 2022-08-08 10:26:16

re救不了....

by shitouFL @ 2022-08-08 10:30:16

我改了yi点

#include<bits/stdc++.h>
using namespace std;
stack < int > stk;
stack < char > schar;
int vis[1005],len;
string s;
int main() {
    cin>>s;
    len=s.size();
    for(int i=0; i<len; i++)
        if(s[i]=='('||s[i]=='[')
            stk.push(i),schar.push(s[i]);
        else if(s[i]==')')
            if(schar.top()!='(')
                vis[i]=3;
            else
                schar.pop(),stk.pop();
        else if(schar.top()!='[')
            vis[i]=4;
        else
            schar.pop(),stk.pop();
    while(!stk.empty())
    {
        if(schar.top()=='(')
            vis[stk.top()]=1;
        else
            vis[stk.top()]=2;
        schar.pop(),stk.pop();
    }
    for(int i=0; i<len; i++) {
        if(vis[i]==0)printf("%c",s[i]);
        if(vis[i]==1)printf("%c)",s[i]);
        if(vis[i]==2)printf("%c]",s[i]);
        if(vis[i]==3)printf("(%c",s[i]);
        if(vis[i]==4)printf("[%c",s[i]);
    }
    printf("\n");
    return 0;
}

但re....

by shitouFL @ 2022-08-08 10:31:23

I don't know why.