Envío 2794

Código

//
#include <bits/stdc++.h>
using namespace std;
#define INF 1000000000
#define MOD 1000000007
#define PI 3.14159265
#define EPS 1e-9
#define Pi acos(-1.0)
typedef pair<int, int> ii;
typedef long long ll;
typedef vector<ll> vll;
typedef pair<ll,ll> pll;
#define forr(i,a,b) for(int i=(a); i<(b); i++)
#define clean(arr,val) memset(arr,val,sizeof(arr))
#define forn(i,n) forr(i,0,n)
#define PB push_back
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<pll> vpll;

/*CODE START HERE*/

string number;
int temp;

int main(){
    ios::sync_with_stdio(0);
    cin >> number;
    // cout << "BACK\n";
    // cout << number.back() << "\n";
    if(number.back() == '9'){
        // cout << "IN\n";
        number.push_back('0');
        for(int i = (int)number.size()-1; i >= 0; i--){
            number[i] = number[i-1];
        }
        number[0] = '0';
    }

    for(int i = (int)number.size()-1; i >= 0; i--){
        if(number[i] == '9'){
            number[i] = '0';
            continue;
        }
        number[i] = ((number[i]-'0')+1)+'0';
        break;
    }
    temp = 0;
    if(number[0] == '0'){
        temp = 1;
    }
    cout << number.c_str()+temp << "\n";
    return 0;
}