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// Source : https://oj.leetcode.com/problems/plus-one/

// Author : Hao Chen

// Date : 2014-06-21

/**********************************************************************************

*

* Given a non-negative number represented as an array of digits, plus one to the number.

*

* The digits are stored such that the most significant digit is at the head of the list.

*

**********************************************************************************/

#include <iostream>

#include <vector>

using namespace std;

vector<int> plusOne(vector<int> &digits) {

int carry=1;

vector <int> v;

while(digits.size()>0){

int x = digits.back();

digits.pop_back();

x = x + carry;

v.insert(v.begin(), x%10);

carry = x/10;

}

if (carry>0){

v.insert(v.begin(), carry);

}

return v;

}

void printVector(vector<int>& v)

{

cout << "{ ";

for(int i=0; i<v.size(); i++){

cout << v[i] << " ";

}

cout << "} " << endl;

}

int main()

{

int a[]={9,9,9};

vector<int> d(&a[0], &a[0]+sizeof(a)/sizeof(int));

vector<int> v = plusOne(d);

printVector(v);

return 0;

}