I tried 0-1 knapsack style but there is an issue with backtracking the array.+3 aakarshmadhavan 7 years ago 1 Comments (1) Write comment? f2lk6wf90d 7 years ago, # | 0 It appears that the statement is actually asking for the number of permutations of 1... n with k inversion...
answer means-- number of elements to its right such that they are greater than this element → Reply X-OR 11 months ago, # | 0 I guess you are trying to find count of inversions in array which is if i < j and a[i] > a[j] This can be done using merge sort along with...
Let A[0...n - 1] be an array of n distinct positive integers. If i < j and A[i] > A[j] then the pair (i, j) is called an inversion of A. Given n and an array A your task is to find the number of inversions of A. Input The first line contains t, the number of te...
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algorithm to count the number of significant inversions between two orderings. The array contains N elements . All elements are in the range from 1 to 1,000,000,000. Input The first line contains one integer , indicating the size of the array. The second line contains ...
#include<bits/stdc++.h>usingnamespacestd;#defineMAX_NUMBER_OF_NODES10000000#defineendl'\n'#definef0(i,n)for(inti=0;i<n;i++)typedeflonglongintll;ll trie[MAX_NUMBER_OF_NODES][2]={0};ll store[MAX_NUMBER_OF_NODES][2]={0};ll nxt=1;ll count1=0;// Each row represents a node/...
Task 1: Given q(≤100000)q(≤100000) queries and L,R,(pair p)L,R,(pair p), output the number of pairs < p in the range [L,R][L,R]. Task 2: Count the number of inversions in it. I can do inversions += query(i+1,n,p[i]) (if answer to Task 1 is available). Task...
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