당신은이 작업을 수행 할 확장 방법을 만들 수 있습니다
static class EnumerableIntExtensions {
public static IEnumerable<IEnumerable<T>> ToContiguousSequences<T>(
this IEnumerable<T> sequence,
Func<T, T> next
) {
Contract.Requires(sequence != null);
Contract.Requires(next != null);
var e = sequence.GetEnumerator();
if (!e.MoveNext()) {
throw new InvalidOperationException("Sequence is empty.");
}
var currentList = new List<T> { e.Current };
while (e.MoveNext()) {
T current = e.Current;
if (current.Equals(next(currentList.Last()))) {
currentList.Add(current);
}
else {
yield return currentList;
currentList = new List<T> { current };
}
}
yield return currentList;
}
}
사용법 :
var sequence = Enumerable.Range(1, 100)
.Concat(new[] { 102 })
.Concat(Enumerable.Range(104, 97));
var sequences = sequence.ToContiguousSequences(n => n + 1);
foreach(var contiguousSequence in sequences) {
Console.WriteLine(String.Join(", ", contiguousSequence.Select(n => n.ToString())));
}
출력 :
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100
102
104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200
샘플 입력과 예상 출력을 제공 할 수 있습니까? –
정수 시퀀스는 시작 순서가 맞습니까? –