#17752. Count Inversions
Count Inversions
说明
给一个数组,算inverted pair的数目输入格式
有多组测试样例。每组输入数据占一行,每一行是一个数组,数组之间的元素用空格分开输出格式
每组输出结果占一行。对应于每组输入数据的inversions1 2 3
2 1 3
3 2 10
1
3
1 2 3
2 1 3
3 2 10
1
3
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