Submission #480293

#	Time	Username	Problem	Language	Result	Execution time	Memory
480293		arwaeystoamneg	Xylophone (JOI18_xylophone)	C++17	100 / 100	136 ms	356 KiB

xylophone

// EXPLOSION!
#define _CRT_SECURE_NO_WARNINGS
#ifndef arwaeystoamneg
#include"bits/stdc++.h"
#endif
#ifdef  arwaeystoamneg
#include<iostream>
#include<algorithm>
#include<vector>
#include<unordered_set>
#include<unordered_map>
#include<chrono>
#include<cassert>
#endif

using namespace std;
typedef pair<int, int> pii;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef long double ld;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pair<int, int>> vpi;
typedef vector<pair<ll, ll>> vpll;

#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define trav(a,x) for (auto& a: x)

#define pb push_back
#define mp make_pair
#define rsz resize
#define sz(x) int(x.size())
#define all(x) x.begin(),x.end()
#define f first
#define s second
#define cont continue
#define endl '\n'
//#define ednl '\n'
#define test int testc;cin>>testc;while(testc--)
#define pr(a, b) trav(x,a)cerr << x << b; cerr << endl;
#define message cout << "Hello World" << endl;
const int dx[4] = { 1,0,-1,0 }, dy[4] = { 0,1,0,-1 }; // for every grid problem!!
const ll linf = 4000000000000000000LL;
const ll inf = 998244353;//    1000000007

void pv(vi a) { trav(x, a)cout << x << " "; cout << endl; }void pv(vll a) { trav(x, a)cout << x << " "; cout << endl; }void pv(vector<vi>a) {
	F0R(i, sz(a)) { cout << i << endl; pv(a[i]); cout << endl; }
}void pv(vector<vll>a) { F0R(i, sz(a)) { cout << i << endl; pv(a[i]); }cout << endl; }void pv(vector<string>a) { trav(x, a)cout << x << endl; cout << endl; }
void setIO(string s) {
	ios_base::sync_with_stdio(0); cin.tie(0);
#ifdef arwaeystoamneg
	if (sz(s))
	{
		freopen((s + ".in").c_str(), "r", stdin);
		if (s != "test1")
			freopen((s + ".out").c_str(), "w", stdout);
	}
#endif
}
#ifndef arwaeystoamneg
#include "xylophone.h"
#endif
#ifdef arwaeystoamneg
static int A[5000];
static const int N_MAX = 5000;
static const int Q_MAX = 10000;
static int N;
static bool used[N_MAX];
static int query_c;
static int answer_c;

int query(int u, int t) {
	if (query_c >= Q_MAX) {
		printf("Wrong Answer\n");
		exit(0);
	}
	query_c++;
	if (!(1 <= u && u <= t && t <= N)) {
		printf("Wrong Answer\n");
		exit(0);
	}
	int mx = 0, mn = N + 1;
	for (int i = u - 1; i < t; i++) {
		if (mx < A[i]) {
			mx = A[i];
		}
		if (mn > A[i]) {
			mn = A[i];
		}
	}
	return mx - mn;
}

void answer(int i, int a) {
	answer_c++;
	if (!(1 <= i && i <= N)) {
		printf("Wrong Answer\n");
		exit(0);
	}
	if (!(1 <= a && a <= N)) {
		printf("Wrong Answer\n");
		exit(0);
	}
	if (used[i - 1]) {
		printf("Wrong Answer\n");
		exit(0);
	}
	if (a != A[i - 1]) {
		printf("Wrong Answer\n");
		exit(0);
	}
	used[i - 1] = true;
}
#endif
int n;
vi a;
void solve(int N) 
{
	n = N;
	a.rsz(n);
	a[0] = 0;
	a[1] = query(1, 2);
	FOR(i, 2, n)
	{
		int d = query(i, i + 1);
		int d1 = query(i - 1, i + 1);
		if (a[i - 2] < a[i - 1])
		{
			if (abs(a[i - 2] - (a[i - 1] + d)) == d1)a[i] = a[i - 1] + d;
			else a[i] = a[i - 1] - d;
		}
		else
		{
			if (abs(a[i - 2] - (a[i - 1] - d)) == d1)a[i] = a[i - 1] - d;
			else a[i] = a[i - 1] + d;
		}
	}
	int m = *min_element(all(a));
	m = abs(m);
	trav(x, a)x += m;
	if (min_element(all(a)) > max_element(all(a)))trav(x, a)x = n - x - 1;
	F0R(i, n)answer(i + 1, a[i] + 1);
}

#ifdef arwaeystoamneg
int main() {
	query_c = 0;
	answer_c = 0;
	if (scanf("%d", &N) != 1) {
		fprintf(stderr, "Error while reading input\n");
		exit(1);
	}
	for (int i = 0; i < N; i++) {
		if (scanf("%d", A + i) != 1) {
			fprintf(stderr, "Error while reading input\n");
			exit(1);
		}
		used[i] = false;
	}
	solve(N);
	if (!(answer_c == N)) {
		printf("Wrong Answer\n");
		exit(0);
	}
	printf("Accepted : %d\n", query_c);
}
#endif

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