2475_NumberofUnequalTripletsinArray - a920604a/leetcode GitHub Wiki
title: 2475. Number of Unequal Triplets in Array tags: - sorting categories: leetcode comments: false
class Solution {
public:
int unequalTriplets(vector<int>& nums) {
// 2 3 4 4 4
sort(nums.begin(), nums.end());
int n = nums.size();
if(n<3) return 1;
int count =0;
for(int i=0;i<n-2;i++){
for(int j=i+1;j<n-1;++j){
for(int k = j+1;k<n;++k){
if(nums[i]!=nums[j] && nums[j]!=nums[k]) count++;
}
}
}
return count;
}
};
- sloution 1
- time complexity
O(n^3)
- space complexity
O(1)
- time complexity
- solution 2
- time complexity
O()
- time complexity