1144. 递减元素使数组呈锯齿状

Posted 2022-06-28 cznczai

class Solution 
    public int movesToMakeZigzag(int[] nums) 
    int temp1[] = new int[nums.length];
            int temp2[] = new int[nums.length];
            for (int i = 0; i < nums.length; i++) 
                temp1[i] = nums[i];
                temp2[i] = nums[i];
            
            int ans1 = 0;
            int ans2 = 0;
            for (int i = 1; i < temp1.length; i+=2)  //两边小 中间大  
                if (temp1[i - 1] >= temp1[i]) 
                    ans1 += temp1[i - 1] - temp1[i] + 1; 
                    temp1[i - 1] = temp1[i] - 1;
                

                if (i + 1 < temp1.length && temp1[i + 1] >= temp1[i]) 
                    ans1 += temp1[i + 1] - temp1[i] + 1;
                    temp1[i + 1] = temp1[i] - 1;
                
            

            for (int i = 1; i < temp2.length; i+=2)  //两边小，中间大
                if (temp2[i - 1] <= temp2[i]) 
                    ans2 += temp2[i] - temp2[i - 1] + 1;
                    temp2[i] = temp2[i - 1] - 1;
                
                if (i + 1 < temp2.length && temp2[i + 1] <= temp2[i]) 
                    ans2 += temp2[i] - temp2[i + 1] + 1;
                    temp2[i] = temp2[i + 1] - 1;
                
            
            return ans1 <= ans2 ? ans1 : ans2;