//第一题 static int findMissingNumber(int start, int end, List<Integer> list) { for (Integer i:list){ if (i != start){ return start; } start++; } return end; } //第二题 static int findMissingNumber(int start, int end, List<Integer> list) { for (Integer i:list){ if (!list.contains(start)){ return start; } start++; } return end; } //未做特殊情况处理
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