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solution066.cpp
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53 lines (46 loc) · 767 Bytes
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/**
* Plus One
*
* cpselvis ([email protected])
* August 27th, 2016
*/
#include<iostream>
#include<vector>
using namespace std;
class Solution {
public:
vector<int> plusOne(vector<int>& digits) {
int i = digits.size() - 1, carry = 1;
while (i >= 0)
{
int sum = digits[i] + carry;
if (sum >= 10)
{
digits[i] = sum - 10;
carry = 1;
}
else
{
digits[i] = sum;
carry = 0;
}
i --;
}
if (carry == 1)
{
digits.insert(digits.begin(), 1);
}
return digits;
}
};
int main(int argc, char **argv)
{
Solution s;
int arr[5] = {9, 9, 9, 9, 9};
vector<int> vec(arr + 0, arr + 5);
vector<int> ret = s.plusOne(vec);
for (auto i : ret)
{
cout << i << endl;
}
}