class Solution {
public:
    bool increasingTriplet(vector<int>& nums) {
        int min_value = nums[0], second_value = INT_MAX;
        for (auto num : nums) {
            if (num < min_value) {
                min_value = num;
            } else if (num > min_value && num < second_value) {
                second_value = num;
            } else if (num > second_value) {
                return true;
            }
        }
        return false;
    }
};