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###### tags: `Leetcode`

# 6275. Minimum Operations to Make Array Equal II

###### Link : https://leetcode.com/contest/biweekly-contest-96/problems/minimum-operations-to-make-array-equal-ii/

## 題目
回傳讓nums1變成nums2所需動作次數
## 程式碼

class Solution {
public:
    long long minOperations(vector<int>& nums1, vector<int>& nums2, int k) {
        if(k == 0) {
            if(nums1 == nums2) return 0;
            else return -1;
        }
        long long ans = 0;
        int cnt = 0;
        for(int i = 0;i < nums1.size();i++){
            long long temp = nums1[i] - nums2[i];
            cnt = cnt + (temp / k);
            if(temp % k != 0)
                return -1;
            ans += abs(temp);
        }
        if(ans % (2 * k) != 0 || cnt!=0)
            return -1;
        ans /= (k*2);
        return ans;
    }
};

## Date
### 2023/1/21