Submission #4805

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
4805	2014-01-04 09:05:33	cki86201	XOR (IZhO12_xor)	C++98	0 / 100	144 ms	92892 KiB

xor

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#include<stdio.h>
#include<algorithm>
using namespace std;
int N,U;
int Trie[250020*31][2],Len;
int M[250020*31], inp[250020];
int ans[2];
int main(){
  scanf("%d%d",&N,&U);
  int i;
  for(i=1;i<=N;i++){
    int x;
    scanf("%d",&x);
    inp[i] = inp[i-1] ^ x;
  }
  for(i=0;i<=N;i++){
    int now = 0;
    for(int j=30;j>=0;j--){
      int tmp = (inp[i]&1<<j)?1:0;
      if(!Trie[now][tmp])Trie[now][tmp] = ++Len;
      now = Trie[now][tmp];
      M[now] = i;
    }
  }
  for(i=0;i<N;i++){
    int now = 0, mx = 0;
    for(int j=30;j>=0;j--){
      int tmp = (inp[i]&1<<j);
 
 
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• Subtask 1: 0 / 100