Submission #251537

#TimeUsernameProblemLanguageResultExecution timeMemory
251537test2Bubble Sort 2 (JOI18_bubblesort2)C++14
0 / 100
8300 ms784 KiB
#include<bits/stdc++.h> #include "bubblesort2.h" using namespace std ; const int N = 1e5 + 7 ; int n; int tree[N * 4] , lazy[N * 4] ; void update(int node , int L , int R , int l , int r , int val){ if(l > R || r < L) return ; if(L>=l && R<=r){ lazy[node] += val ; return ; } int mid = (L + R) >>1 ; update(node*2+1 , L , mid , l , r , val) ; update(node*2+2 , mid+1 , R , l , r, val) ; tree[node] = max(tree[node *2 +1] + lazy[node*2+1] , tree[node*2+2] + lazy[node *2+2] ); } int query(int node , int L , int R , int l , int r ){ if(l > R || r < L) return 0 ; if(L>=l && R<=r) return tree[node] + lazy[node]; int mid = (L+R) >> 1 ; int s1 = query(node*2+1 , L , mid , l , r) ; int s2 = query(node*2+2 , mid+1 , R , l , r ) ; return max(s1 , s2) + lazy[node] ; } void add(int ix , int val){ } void del(int ix , int val){ } std::vector<int> countScans(std::vector<int> A,std::vector<int> X,std::vector<int> V){ int Q=X.size(); n = (int) A.size() ; std::vector<int> answer(Q); for(int i = 0 ; i < n; i++){ update( 0 , 1 , N , A[i] +1 , N , 1) ; } for (int j=0;j<Q;j++) { if(V[j] >=A[X[j]]){ update( 0 , 1 , N , A[X[j]] +1 , V[j] , -1) ; } else{ update( 0 , 1 ,N , V[j] +1 , A[X[j]] , 1) ; } A[ X[j] ] = V[ j ] ; for(int i = 0 ;i < n;i++){ answer[j] = max(answer[j] , i - query(0 , 1 , N , A[i] , A[i] ) ) ; } } return answer; }
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