solve da questão plusOne leetcode

leetcode_problemset/problemsets/plus_one.cpp

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+#include <bits/stdc++.h>
+using namespace std;
+
+vector<int> plusOne(vector<int> &digits) {
+
+    vector<int> ans;
+    reverse(digits.begin(),digits.end());
+
+    int sum = (digits[0] + 1);
+    int carry = sum/10;
+
+    ans.emplace_back(sum%10);
+
+    for(int i = 1; i < (int)digits.size(); ++i) {
+         sum = ((digits[i])+carry);
+         carry = sum/10;
+         ans.emplace_back(sum%10);
+    }
+
+    if(carry) ans.emplace_back(carry);
+
+    reverse(ans.begin(),ans.end());
+    return ans;
+
+}
+
+int main(){
+
+    vector<int> test = {9};
+    vector<int> res = plusOne(test);
+
+    for(auto x : res)
+        cout << x << " ";
+    cout << endl;
+
+    return 0;
+}