1using System;
2using System.Collections.Generic;
3
4public class MinimumTimeDifference {
5    private static int TimeToMinutes(string time) {
6        int hours = int.Parse(time.Substring(0, 2));
7        int minutes = int.Parse(time.Substring(3, 2));
8        return hours * 60 + minutes;
9    }
10
11    public static int FindMinDifference(IList<string> timePoints) {
12        List<int> minutes = new List<int>();
13        foreach (var time in timePoints) {
14            minutes.Add(TimeToMinutes(time));
15        }
16
17        minutes.Sort();
18
19        int minDiff = int.MaxValue;
20        for (int i = 1; i < minutes.Count; ++i) {
21            minDiff = Math.Min(minDiff, minutes[i] - minutes[i - 1]);
22        }
23
24        int wrapAroundDiff = minutes[0] + 1440 - minutes[minutes.Count - 1];
25        minDiff = Math.Min(minDiff, wrapAroundDiff);
26
27        return minDiff;
28    }
29
30    public static void Main() {
31        List<string> timePoints = new List<string> { "23:59", "00:00" };
32        Console.WriteLine(FindMinDifference(timePoints));
33    }
34}

1#include <vector>
#include <string>
#include <climits>

using namespace std;

int timeToMinutes(const string& time) {
    int hours = stoi(time.substr(0, 2));
    int minutes = stoi(time.substr(3, 2));
    return hours * 60 + minutes;
}

int findMinDifference(vector<string>& timePoints) {
    vector<bool> minutes(1440, false);
    for (const auto& time : timePoints) {
        int minute = timeToMinutes(time);
        if (minutes[minute]) return 0;
        minutes[minute] = true;
    }

    int first = -1, last = -1, prev = -1, minDiff = INT_MAX;
    for (int i = 0; i < 1440; ++i) {
        if (minutes[i]) {
            if (first == -1) first = i;
            if (prev != -1) minDiff = min(minDiff, i - prev);
            prev = i;
            last = i;
        }
    }
    minDiff = min(minDiff, first + 1440 - last);
    return minDiff;
}

int main() {
    vector<string> timePoints = {"23:59", "00:00"};
    cout << findMinDifference(timePoints) << endl;
    return 0;
}