495. Teemo Attacking

public class Solution { public int findPoisonedDuration(int[] timeSeries, int duration) { if(timeSeries == null || timeSeries.length == 0) { return 0; }else if(timeSeries.length == 1) { return duration; }else { int sum =0; for(int i = 1; i < timeSeries.length;i++) { if(timeSeries[i]-timeSeries[i-1] <= duration) { sum+=(timeSeries[i]-timeSeries[i-1]); }else { sum += duration; } } sum+=duration; return sum; } } }