제출 #93523

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
93523		Dat160601	Secret (JOI14_secret)	C++14	0 / 100	495 ms	8468 KiB

secret

#include "secret.h"
#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
#define fi first
#define se second

int n, val[1007][1007], a[1007];

void prep(int l, int r){
	if(l == r){
		val[l][l] = a[l - 1];
		return;
	}
	int mid = (l + r) >> 1;
	for(int i = mid; i >= l; i--){
		if(i == mid) val[i][mid] = a[mid - 1];
		else val[i][mid] = Secret(val[i + 1][mid], a[i - 1]);
	}
	for(int i = mid + 1; i <= r; i++){
		if(i == mid + 1) val[mid + 1][i] = a[mid];
		else val[mid + 1][i] = Secret(val[mid + 1][i - 1], a[i - 1]);
	}
	prep(l, mid);
	prep(mid + 1, r);
}

void Init(int N, int A[]){
	n = N;
	for(int i = 0; i < n; i++) a[i] = A[i];
	prep(1, N);
}

int solve(int l, int r, int L, int R){
	if(L == R) return a[L - 1];
	int mid = (l + r) >> 1;
	if(L <= mid && R > mid) return Secret(val[L][mid], val[mid + 1][R]);
	if(R <= mid) return solve(l, mid, L, R);
	else return solve(mid + 1, r, L, R);
}

int Query(int L, int R){
	return solve(1, n, L + 1, R + 1);
}

• Subtask 1: 0 / 100