大意:给你两个数n,k,让你求出n的所有全排列中差异序列字典序第k小的排列差异序列为pi=a[i+1]-a[i].i属于[1,n) 正解思路 因为k最大为1e4,但8!=40000,所以n<=8,直接暴力全排列就行。 对于n>8的,最小的排列为n,1,2,3,...所以我们可以跑出后8位的排列,结构体排序输出。 详细链接 26. OJ...
解:1:可以借用找第k小元素的办法,当找到第k小元素时,这一元素和它左边的元素构成最小的k个元素.2:可以考虑用小堆排序的办法,每一次小堆调整得到最小的元素,进行k次小堆调整即可得到k个最小元素的有序序列.第6题腾讯面试题:给你10分钟时间,根据上排给出十个数,在其下排填出对应的十个数要求下排每个数...
Time Limit: 1 Second Memory Limit: 65536 KB BaoBao loves number 7 but hates number 4, so he refers to an integer as a "lucky integer" if is divisible by 7 but not divisible by 4. For example, 7, 14 and 21 are lucky integers, but 1, 4 and 28 are not. Today BaoBao has just ...
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