{
NSArray *arr = @[@"0",@"0",@"1",@"1",@"1",@"2",@"2",@"3",@"3",@"4"];
NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
[arr enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
[dic setObject:@"" forKey:obj];
}];
NSMutableArray *keys = [dic allKeys].mutableCopy;
[keys sortUsingSelector:@selector(compare:)];
NSLog(@"%@",keys);
}
leetcode 26 删除数组重复元素 oc Object-C
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转载自blog.csdn.net/qq_15509071/article/details/101674173
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