Submission #634360

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
634360	2022-08-24 09:37:07	smartmonky	XORanges (eJOI19_xoranges)	C++14	100 / 100	523 ms	15820 KiB

xoranges

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#include <iostream>
#include <algorithm>
#include <vector>
#include <math.h>
#include <set>
#include <map>
 
#define ll long long
#define ff first
#define ss second
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define int ll
using namespace std;
const int N=3e5;
ll t[2][N*4],a[N],n;
void build(int v=1,int tl=1,int tr=n){
  if(tl==tr){
  //  cout << (tl&1) <<" " <<v  <<" "<< a[tl]<<endl;
    t[(tl & 1)][v]=a[tl];
  }else{
    int mid=(tl+tr) >> 1;
    build(v*2,tl,mid);
    build(v*2+1,mid+1,tr);
  t[1][v]=(t[1][v*2]^t[1][v*2+1]);
  t[0][v]=(t[0][v*2]^t[0][v*2+1]);
  }
}
void upd(int pos,int val,int v=1, int tl=1,int tr=n){
  if(tl==tr){
 
 
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Compilation message (stderr)

xoranges.cpp:53:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   53 | main(){
      | ^~~~

• Subtask 1: 12 / 12
• Subtask 2: 18 / 18
• Subtask 3: 25 / 25
• Subtask 4: 20 / 20
• Subtask 5: 25 / 25