Java | Leetcode Java题解之第539题最小时间差
题目：
题解：
class Solution {
public int findMinDifference(List<String> timePoints) {
int n = timePoints.size();
if (n > 1440) {
return 0;
}
Collections.sort(timePoints);
int ans = Integer.MAX_VALUE;
int t0Minutes = getMinutes(timePoints.get(0));
int preMinutes = t0Minutes;
for (int i = 1; i < n; ++i) {
int minutes = getMinutes(timePoints.get(i));
ans = Math.min(ans, minutes - preMinutes); // 相邻时间的时间差
preMinutes = minutes;
}
ans = Math.min(ans, t0Minutes + 1440 - preMinutes); // 首尾时间的时间差
return ans;
}
public int getMinutes(String t) {
return ((t.charAt(0) - '0') * 10 + (t.charAt(1) - '0')) * 60 + (t.charAt(3) - '0') * 10 + (t.charAt(4) - '0');
}
}