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27 changes: 27 additions & 0 deletions leetcode3/정진영/4083. Minimum Deletions to Make Array Sharp
Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
/**
* @param {number[]} nums
* @return {number}
*/
var minDeletions = function(nums) {
/*
sharp 조건 : a[i] ^ a[i+1] !== 0
1. 아이디어
- for 문을 돌면서 nums 원소 하나씩 확인
- arr 마지막 원소와 nums[i] 비교
- if XOR == 0 이면 push 안함
- XOR != 0 이면 nums[i] push
- nums.length - 해당 배열의 length
*/

let arr = [];

for (let i = 0; i < nums.length; i++) {
if (arr.length == 0) {
arr.push(nums[i]);
} else if ((arr[arr.length - 1] ^ nums[i]) != 0) {
arr.push(nums[i]);
}

}
return (nums.length - arr.length);
};
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