1534. 统计好三元组
状态:AC
代码:
class Solution {
public:
int countGoodTriplets(vector<int>& arr, int a, int b, int c) {
int ans = 0;
for(int i = 0;i<arr.size()-2;i++){
for(int j = i+1;j<arr.size()-1;j++){
for(int k = j+1;k<arr.size();k++){
if(abs(arr[i] - arr[j]) <= a && abs(arr[j] - arr[k]) <= b && abs(arr[i] - arr[k]) <= c)
ans++;
}
}
}
return ans;
}
};