Submission #736069

#	Time	Username	Problem	Language	Result	Execution time	Memory
736069		rxlfd314	Xylophone (JOI18_xylophone)	C++17	0 / 100	2 ms	296 KiB

xylophone

#include "xylophone.h"
#include <bits/stdc++.h>
using namespace std;

void solve(int N) {
	int A[N+1], B[N+1];
	
	A[1] = B[1] = 500069;
	int ma = 1, mb = 1;
	for (int i = 2; i <= N; i++) {
		int q1 = query(i-1, i);
		if (i == 2) {
			A[2] = A[1] + q1;
			B[2] = B[1] - q1;
		} else {
			int q2 = query(i-2, i);
			if (A[i-2] < A[i-1]) {
				if (q2 == q1 + A[i-1] - A[i-2]) {
					A[i] = A[i-1] + q1;
					B[i] = B[i-1] - q1;
				} else {
					A[i] = A[i-1] - q1;
					B[i] = B[i-1] + q1;
				}
			} else {
				if (q2 == q1 + A[i-2] - A[i-1]) {
					A[i] = A[i-1] - q1;
					B[i] = B[i-1] + q1;
				} else {
					A[i] = A[i-1] + q1;
					B[i] = B[i-1] - q1;
				}
			}
		}
		ma = A[ma] > A[i] ? i : ma;
		mb = B[mb] > B[i] ? i : mb;
	}
	
	if (ma < mb) {
		int sub = A[ma] - 1;
		for (int i = 1; i <= N; i++) {
			answer(i, A[i] - sub);
		}
	} else {
		int sub = B[ma] - 1;
		for (int i = 1; i <= N; i++) {
			answer(i, B[i] - sub);
		}
	}
}

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