codeforces-solutions/271 A.cpp at master · mohsin-riad/codeforces-solutions · GitHub

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/**
* Git >> Mohsin_Riad

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

#define IOS ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define mx 1000
#define endl "\n"
#define pb push_back
#define pob pop_back
typedef long long ll;
typedef double dd;
const int N = 1e6;

ll n;

int calc(int x)
{
    vector<int> v;
    while(x!=0)
    {
        int temp = x % 10;
        v.pb(temp);
        ///cout<<temp<<" ";
        x/=10;
    }
    if(v[0] != v[1] &&  v[1] != v[2] &&  v[1] != v[3]&&  v[2] != v[3] &&  v[0] != v[2] &&  v[0] != v[3])
        return 1;
    else
        return 0;
}

int main()
{
    IOS
    bool flag = 0;
    cin>>n;
    ll year = n;

    while(flag == 0)
    {
        year++;
        int a = calc(year);
        if(a==1)
        {
            flag = 1;
            cout<<year<<endl;
        }
        else continue;
    }

    return (0);
}