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  1. Prepare
  2. Data Structures
  3. Stacks
  4. Simple Text Editor
  5. Discussions

Simple Text Editor

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543 Discussions

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  • 2k23csaiml231353
     + 0 comments

    include

    int main(){ //rudransh op in the chat //mohammad kaif topi in the chat return 0; }

  • 2k23_cs2312688
     + 0 comments
    #include <string>
#include <iostream>
#include <algorithm>
#include <stack>
using namespace std;


int main() {
    
    string s = "";
    stack<string> stack;
    stack.push(s);
    int n;
    cin >> n;
    
    for (int i=0; i<=n; i++)
    {
        string op;
        getline(cin, op);
        
        if (op[0] == '1')
        {
            // append
            s.append(op.substr(2, op.length() - 2));
            stack.push(s);
        }
        else if (op[0] == '2')
        {
            // delete
            s = s.substr(0, s.length() - stoi(op.substr(2, op.length() - 2)));
            stack.push(s);
        }
        else if (op[0] == '3')
        {
            // print
            cout << s[stoi(op.substr(2, op.length() - 2)) - 1] << endl;
        }
        else if (op[0] == '4')
        {
            // undo
            stack.pop();
            s = stack.top();
        }
    }
    //the adarsh 1m <- youtube
    return 0;
}

  • 2k23_cscys231212
     + 0 comments
    #include <string>
#include <iostream>
#include <algorithm>
#include <stack>
using namespace std;


int main() {
    
    string s = "";
    stack<string> stack;
    stack.push(s);
    int n;
    cin >> n;
    
    for (int i=0; i<=n; i++)
    {
        string op;
        getline(cin, op);
        
        if (op[0] == '1')
        {
            // append
            s.append(op.substr(2, op.length() - 2));
            stack.push(s);
        }
        else if (op[0] == '2')
        {
            // delete
            s = s.substr(0, s.length() - stoi(op.substr(2, op.length() - 2)));
            stack.push(s);
        }
        else if (op[0] == '3')
        {
            // print
            cout << s[stoi(op.substr(2, op.length() - 2)) - 1] << endl;
        }
        else if (op[0] == '4')
        {
            // undo
            stack.pop();
            s = stack.top();
        }
    }
    
    return 0;
}

  • phongthuypts
     + 0 comments

    Isn't the expected output of the sample test case wrong?

    Input (stdin): 1 abc, 3 3, 2 3, 1 xy, 3 2, 3 1

    The data contents should be: 1 abc => abc 3 3 => print c 2 3 => deleted abc 1 xy => xy 3 2 => print y 3 1 => print x (not a)

  • utkarsh_sharma16
     + 0 comments
    def TextEditor(ops):
    s=''
    done=[]
    for i in ops:
        if i[0]=='1':
            s=s+(i[1])
            done.append(i)
        elif i[0]=='2':
            e=s[(len(s)-int(i[1])):len(s)]
            s=s[0:(len(s)-int(i[1]))]
            i.append(e)
            done.append(i)
        elif i[0]=='3':
            print(s[int(i[1])-1])
        elif i[0]=='4':
            u=done[-1]
            if u[0]=='1':
                s=s[0:(len(s)-len(u[1]))]
            elif u[0]=='2':
                s=s+(u[2])
            done.pop()
    return
    
    
q=int(input()) 
ops=[]
for i in range(q):
    ops.append(input().split())
TextEditor(ops)