feat: 66_plus_one

66_plus_one/main.cpp

@@ -0,0 +1,20 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+class Solution {
+public:
+    vector<int> plusOne(vector<int>& digits) {
+        int carry = 0;
+        reverse(digits.begin(), digits.end());
+        digits[0]++;
+        for (int i = 0; i < digits.size(); i++) {
+            digits[i] += carry;
+            carry = digits[i] / 10;
+            digits[i] %= 10;
+        }
+        if (carry > 0) digits.emplace_back(carry);
+        reverse(digits.begin(), digits.end());
+
+        return digits;
+    }
+};