Submission #881485

#	Time	Username	Problem	Language	Result	Execution time	Memory
881485		smartmonky	Secret (JOI14_secret)	C++14	0 / 100	386 ms	8372 KiB

secret

#include "secret.h"
#include <bits/stdc++.h>
 
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
 
using namespace std;
 
int b[1005];
int t[1005][1005];

int cnt = 0;
int N;

void build(int l = 0, int r = N - 1){
	if(l > r)return;
	if(l == r){
		t[l][r] = b[l];
		return;
	}
	int mid = (l + r) >> 1;
	
	t[mid][mid] = b[mid];
	
	for(int i = mid - 1; i >= l; i--){
		t[i][mid] = Secret(b[i], t[i + 1][mid]); 
	}
	
	for(int i = mid + 1; i <= r; i++){
		t[mid][i] = Secret(b[i], t[i - 1][mid]); 
	}
	build(l, mid);
	build(mid + 1, r);
}

int get(int al, int ar, int l = 0, int r = N - 1){
	if(al > r || ar < l)return 0;
	int mid = (l + r) >> 1;
	if(l == r)
		return b[l];
	if(l >= al && ar <= r)
		return Secret(t[l][mid], t[mid + 1][r]);
	else{
		return get(al, ar, l, mid) + get(al, ar, mid + 1, r);
	}
}
int Query(int l, int r){
	
	return get(l, r);
}
 
void Init(int n, int a[])
{
	N = n;
	for(int i=0;i<n;i++)b[i]=a[i];
	build();
}

• Subtask 1: 0 / 100