Submission #70235

#	Time	Username	Problem	Language	Result	Execution time	Memory
70235		Pajaraja	Secret (JOI14_secret)	C++17	100 / 100	674 ms	8576 KiB

secret

#include "secret.h"
int val[1007][1007],a[1007],n;
void rek(int l,int r){int s=(l+r)/2;for(int i=s-1;i>=l;i--) val[i][s]=Secret(a[i],val[i+1][s]);for(int i=s+2;i<=r;i++) val[s+1][i]=Secret(val[s+1][i-1],a[i]);if(l==r) return;rek(l,s);rek(s+1,r);}
void Init(int N, int A[]) {n=N;for(int i=0;i<n;i++) val[i][i]=a[i]=A[i];rek(0,n-1);}
int ans(int l,int r,int lt,int rt){if(l==r) return a[l];int s=(l+r)/2;if(lt<=s && rt>s) return Secret(val[lt][s],val[s+1][rt]);if(rt<=s) return ans(l,s,lt,rt);return ans(s+1,r,lt,rt);}
int Query(int L, int R){return ans(0,n-1,L,R);}

• Subtask 1: 100 / 100