3397. Find the Integer Added to Array I
My accepted C++ solution to LeetCode problem 3397, Find the Integer Added to Array I, running in 0ms.
- Difficulty: Easy
- C++
- Runtime 0ms
- Memory 35MB
- Updated
Read the problem on LeetCode View on GitHub
The problem statement is LeetCode’s and stays on their site. What follows is my accepted solution.
C++
Accepted on LeetCode — runtime 0ms, memory 35MB, accepted 2025-12-27.
class Solution {
public:
int addedInteger(vector<int>& nums1, vector<int>& nums2) {
int sum1 = 0, sum2 = 0;
for (int n : nums1) sum1 += n;
for (int n : nums2) sum2 += n;
return (sum2 - sum1) / (int)nums1.size();
}
};