Submission #1159016

#	Time	Username	Problem	Language	Result	Execution time	Memory
1159016		thelegendary08	Xylophone (JOI18_xylophone)	C++17	0 / 100	0 ms	320 KiB

xylophone

#include "xylophone.h"
#include<bits/stdc++.h>
using namespace std;
static int A[5000];

void solve(int N) {
	vector<int>v;
	for(int i = 1; i<N; i++){
		v.push_back(query(i, i+1));
	}
	vector<int>w;
	for(int i = 1; i<N-1; i++){
		v.push_back(query(i, i+2));
	}
	vector<int>sgn(N-1, 1);
	for(int i = 0; i<N-2; i++){
		if(w[i] == v[i] + v[i+1])sgn[i+1] = sgn[i];
		else sgn[i+1] = -sgn[i];
	}
	vector<int> nums(N);
	for(int i = 1; i<N; i++){
		if(sgn[i-1] == 1){
			nums[i] = nums[i-1] + v[i];
		}
		else nums[i] = nums[i-1] - v[i];
	}
	int mxd = 0;
	int mx = -1;
	int mnd = 0;
	int mn = 1e9;
	for(int i = 0; i<N; i++){
		if(nums[i] < mn){
			mn = nums[i];
			mnd = i;
		}
		if(nums[i] > mx){
			mx = nums[i];
			mxd = i;
		}
	}
	if(mnd > mxd){
		for(int i = 0; i<N-1; i++)sgn[i] = -sgn[i];
	}
	nums[0] = 0;
	for(int i = 1; i<N; i++){
		if(sgn[i-1] == 1){
			nums[i] = nums[i-1] + v[i];
		}
		else nums[i] = nums[i-1] - v[i];
	}
	mxd = 0;
	mx = -1;
	mnd = 0;
	mn = 1e9;
	for(int i = 0; i<N; i++){
		if(nums[i] < mn){
			mn = nums[i];
			mnd = i;
		}
		if(nums[i] > mx){
			mx = nums[i];
			mxd = i;
		}
	}
	for(int i = 0; i<N; i++){
		nums[i] -= mn;
		nums[i]++;
	}
	for(int i = 1; i <= N; i++) {
		answer(i, nums[i-1]);
	}

}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 36
• Subtask 3: 0 / 53