Codeforces Round #291 (Div. 2) 514A. Chewbaсca and Number Solution

 

Problem Link:  https://codeforces.com/problemset/problem/514/A

Solve in C++:  

///La ilaha illellahu muhammadur rasulullah

///******Bismillahir-Rahmanir-Rahim******///

///Abul Hasnat  Tonmoy

///Department of CSE,23rd batch

///Islamic University,Bangladesh

///**********ALLAH IS ALMIGHTY************///

#include<bits/stdc++.h>

using namespace std;

int main()

{

    string a,s;

    int sz,i;

    a[0]=9;

    cin>>s;

    sz=s.size();

    for(i=0; i<sz; i++)

    {

        if(i==0&&s[i]-'0'==9)

            cout<<s[i];

       else if(s[i]-'0'>4)

            cout<<(a[0]-(s[i]-'0'));

        else

            cout<<s[i];

    }

}