本问题出自:微软2014实习生及秋令营技术类职位在线测试 (Microsoft Online Test for Core Technical Positions) Description Find a pair in an integer array that swapping them would maximally decrease the inversion count of the array. If such a pair exists, return the new inversio
https://blog.csdn.net/mrvector/article/details/81090165 [题解] 方法与求逆序对的个数类似,用归并排序分治求解.不同之处在于添加了一个虚拟指针pointer. [代码] #include <iostream> using namespace std; #define maxn 200005 int s[maxn], temp[maxn]; long long ans; void Merge(int left, int right, int
Insertion Sort is a simple sorting technique which was covered in previous challenges. Sometimes, arrays may be too large for us to wait around for insertion sort to finish. Is there some other way we can calculate the number of times Insertion Sort
Minimum Inversion Number Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 25092 Accepted Submission(s): 14816 Problem Description The inversion number of a given number sequence a1, a2, ..., a
1523. K-inversions Time limit: 1.0 secondMemory limit: 64 MB Consider a permutation a1, a2, …, an (all ai are different integers in range from 1 to n). Let us call k-inversion a sequence of numbers i1, i2, …, ik such that 1 ≤ i1 < i2 < … < ik ≤ n
#include<bits/stdc++.h> #define LL long long #define fi first #define se second #define mk make_pair #define PII pair<int, int> #define PLI pair<LL, int> #define PLL pair<LL, LL> #define y1 skldjfskldjg #define y2 skldfjsklejg usin
点击打开链接 Brainman Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 7810 Accepted: 4261 Description Background Raymond Babbitt drives his brother Charlie mad. Recently Raymond counted 246 toothpicks spilled all over the floor in an instan