从python中的元组中删除重叠的数字，这样就不会有两个元组具有相同的起始或结束数字。

def remove_overlapping_tuples(tuples):
    non_overlapping_tuples = []
    for tuple in tuples:
        start, end = tuple
        overlapping = False
        for existing_tuple in non_overlapping_tuples:
            existing_start, existing_end = existing_tuple
            if start >= existing_start and start <= existing_end:
                overlapping = True
                break
            if end >= existing_start and end <= existing_end:
                overlapping = True
                break
        if not overlapping:
            non_overlapping_tuples.append(tuple)
    return non_overlapping_tuples

# 示例用法
tuples = [(1, 5), (3, 8), (10, 15), (12, 20)]
result = remove_overlapping_tuples(tuples)
print(result)  # 输出：[(1, 5), (10, 15)]