제출 #763072

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
763072		NhanBeoo	Xylophone (JOI18_xylophone)	C++17	0 / 100	0 ms	208 KiB

xylophone

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

typedef long long ll;
typedef pair< int, int > ii;
typedef pair< int, ii > iii;
typedef vector< int > vi;
typedef vector< ii > vii;
typedef vector< iii > viii;
typedef vector< vi > vvi;
typedef vector< vii > vvii;
typedef vector< viii > vviii;
#define hdp 1e9+7
#define MAX LLONG_MAX
#define st first
#define nd second

const int N = 5005;
int a[N];

void solve(int n){
	a[2] = query(1, 2);
	for(int i=3; i<=n; i++){
		int x = (i-1, i);
		int y = (i-2, i);
		if((x == y and a[i-2] > a[i-1]) or (x != y and a[i-1] > a[i-2]))
			a[i] = a[i-1] + x;
		else 
			a[i] = a[i-1] - x;
	}
	if(min_element(a+1, a+n+1) > max_element(a+1, a+n+1))
		for(int i=1; i<=n; i++) a[i] *= -1;
	int m = *min_element(a+1, a+n+1);
	for(int i=1; i<=n; i++) answer(i, a[i]-m+1);
}

컴파일 시 표준 에러 (stderr) 메시지

xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:25:13: warning: left operand of comma operator has no effect [-Wunused-value]
   25 |   int x = (i-1, i);
      |            ~^~
xylophone.cpp:26:13: warning: left operand of comma operator has no effect [-Wunused-value]
   26 |   int y = (i-2, i);
      |            ~^~

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