Submission #1006373

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1006373	2024-06-23 21:47:41	JoksimKaktus	XORanges (eJOI19_xoranges)	C++17	100 / 100	90 ms	11968 KiB

xoranges

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#include <bits/stdc++.h>
 
using namespace std;
using ll = long long;
 
vector <int> seg1(200000*3);
vector <int> seg2(200000*3);
vector <int> v(200000);
 
void build(int l,int r,int u){
    if(l == r){
        if(l % 2 == 1){
            return;
        }
        seg1[u] = v[l];
        return;
    }
    build(l,(l+r)/2,u*2);
    build((l+r)/2+1,r,u*2+1);
    seg1[u] = seg1[u*2]^seg1[u*2+1];
}
 
void update(int l,int r,int u,int v,int k){
    if(l == r && l == v){
        seg1[u] = k;
        return;
    }
    if(v < l || v > r)return;
    update(l,(l+r)/2,u*2,v,k);
    update((l+r)/2+1,r,u*2+1,v,k);
 
 
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• Subtask 1: 12 / 12
• Subtask 2: 18 / 18
• Subtask 3: 25 / 25
• Subtask 4: 20 / 20
• Subtask 5: 25 / 25