1#include <iostream>
2#include <vector>
3#include <algorithm>
4#include <climits>
5
6using namespace std;
7
8int timeToMinutes(const string& time) {
9    int hours = stoi(time.substr(0, 2));
10    int minutes = stoi(time.substr(3, 2));
11    return hours * 60 + minutes;
12}
13
14int findMinDifference(vector<string>& timePoints) {
15    vector<int> minutes;
16    for (const auto& time : timePoints) {
17        minutes.push_back(timeToMinutes(time));
18    }
19
20    sort(minutes.begin(), minutes.end());
21
22    int minDiff = INT_MAX;
23    for (int i = 1; i < minutes.size(); ++i) {
24        minDiff = min(minDiff, minutes[i] - minutes[i - 1]);
25    }
26
27    int wrapAroundDiff = minutes[0] + 1440 - minutes.back();
28    minDiff = min(minDiff, wrapAroundDiff);
29
30    return minDiff;
31}
32
33int main() {
34    vector<string> timePoints = {"23:59", "00:00"};
35    cout << findMinDifference(timePoints) << endl;
36    return 0;
37}

1using System.Collections.Generic;

public class MinimumTimeDifference {
    private static int TimeToMinutes(string time) {
        int hours = int.Parse(time.Substring(0, 2));
        int minutes = int.Parse(time.Substring(3, 2));
        return hours * 60 + minutes;
    }

    public static int FindMinDifference(IList<string> timePoints) {
        bool[] minutes = new bool[1440];
        foreach (var time in timePoints) {
            int minute = TimeToMinutes(time);
            if (minutes[minute]) return 0;
            minutes[minute] = true;
        }

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

        return minDiff;
    }

    public static void Main() {
        List<string> timePoints = new List<string> { "23:59", "00:00" };
        Console.WriteLine(FindMinDifference(timePoints));
    }
}