这是一个排序程序运行后B数组存放A数组各数在排序后的位置结果是
A={}
B={}
C={}
()同上面题()
()对c数组的赋值同所选择的下标i和j的次序(指外层循环用j内层用i)没有关系
()同上题()
()对ij下标取反序后重复执行第()步A数组所有元素均变为(在机器上验证反复循环次后所有元素均变为)
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