제출 #1282574

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1282574		Jawad_Akbar_JJ	Xylophone (JOI18_xylophone)	C++20	컴파일 에러	0 ms	0 KiB

xylophone

#include <iostream>
#include "xylophone.h"

using namespace std;
int a[1<<16];

void solve(int n){
	a[1] = n + n;

	int Min = 1, cur = 1;
	while (cur < n){
		int d = query(cur, cur + 1), dd;
		if (Min == 1)
			a[cur + 1] = a[cur] + d;
		else
			a[cur + 1] = a[cur] - d;
		if (cur == n - 1)
			break;

		dd = query(cur, cur + 2);
		Min = Min ^ (dd == d);
		cur++;
	}

	int Mn = a[1] - 1, id1, idn;
	for (int i=1;i<=n;i++)
		Mn = min(Mn, a[i] - 1);
	
	for (int i=1;i<=n;i++){
		a[i] -= Mn;
		if (a[i] == 1)
			id1 = i;
		if (a[i] == n)
			id2 = i;
	}

	for (int i=1;i<=n;i++)
		answer(i, a[i] + (n + 1 - 2 * a[i]) * (id1 > id2));
}

컴파일 시 표준 에러 (stderr) 메시지

xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:34:25: error: 'id2' was not declared in this scope; did you mean 'idn'?
   34 |                         id2 = i;
      |                         ^~~
      |                         idn
xylophone.cpp:38:62: error: 'id2' was not declared in this scope; did you mean 'idn'?
   38 |                 answer(i, a[i] + (n + 1 - 2 * a[i]) * (id1 > id2));
      |                                                              ^~~
      |                                                              idn