Created
September 15, 2014 05:05
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Insert Interval
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public List<Interval> insert(List<Interval> intervals, Interval newInterval) | |
{ | |
if (intervals == null || newInterval == null) | |
{ | |
return intervals; | |
} | |
if (intervals.size() == 0) | |
{ | |
intervals.add(newInterval); | |
return intervals; | |
} | |
ListIterator<Interval> iterator = intervals.listIterator(); | |
while (iterator.hasNext()) | |
{ | |
Interval item = iterator.next(); | |
//before | |
if (newInterval.end < item.start) | |
{ | |
iterator.previous(); | |
iterator.add(newInterval); | |
return intervals; | |
} | |
else | |
{ | |
if (newInterval.start > item.end) | |
{ | |
continue; | |
} | |
else | |
{ | |
newInterval.start = Math.min(newInterval.start, item.start); | |
newInterval.end = Math.max(newInterval.end, item.end); | |
iterator.remove(); | |
} | |
} | |
} | |
intervals.add(newInterval); | |
return intervals; | |
} |
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