Given a list of 24-hour clock time points in <strong>&quot;HH:MM&quot;</strong> format, return <em>the minimum <b>minutes</b> difference between any two time-points in the list</em>.
<p>&nbsp;</p>
<p><strong class="example">Example 1:</strong></p>
<pre><strong>Input:</strong> timePoints = ["23:59","00:00"]
<strong>Output:</strong> 1
</pre><p><strong class="example">Example 2:</strong></p>
<pre><strong>Input:</strong> timePoints = ["00:00","23:59","00:00"]
<strong>Output:</strong> 0
</pre>
<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>

<ul>
	<li><code>2 &lt;= timePoints.length &lt;= 2 * 10<sup>4</sup></code></li>
	<li><code>timePoints[i]</code> is in the format <strong>&quot;HH:MM&quot;</strong>.</li>
</ul>

class Solution {
private:
    int convertStringTimeToIntMinutes(string timeStamp) {
    int hour = stoi(timeStamp.substr(0, 2));  // Extract hour part from index 0 to 1
    int min = stoi(timeStamp.substr(3, 2));   // Extract minute part from index 3 to 4

    return hour * 60 + min;  // Convert hours to minutes and add minutes
}


public:
    int findMinDifference(vector<string>& timePoints) {
        vector<int> timeInMinutes;
        unordered_set<int> timeInMinutesSet;

        for(string timeStamp:timePoints){
            int timeStampInMinutes = convertStringTimeToIntMinutes(timeStamp);
            if(timeInMinutesSet.find(timeStampInMinutes)==timeInMinutesSet.end()){
                timeInMinutes.push_back(timeStampInMinutes);
                timeInMinutes.push_back(timeStampInMinutes+1440);

                timeInMinutesSet.insert(timeStampInMinutes);
            }
            else{
                return 0;
            }
        }

        sort(timeInMinutes.begin(),timeInMinutes.end());

        int minMinutesDiff = 720;

        for(int i=0;i<timeInMinutes.size()-1;i++){
            int currDiff = abs(timeInMinutes[i] - timeInMinutes[i+1]);
            
            if(currDiff<minMinutesDiff){
                minMinutesDiff = currDiff;
            }
        }

        return minMinutesDiff;
    }
};
18100