Submission #551801

#	Time	Username	Problem	Language	Result	Execution time	Memory
551801		QwertyPi	Xylophone (JOI18_xylophone)	C++14	0 / 100	3 ms	312 KiB

xylophone

#include "xylophone.h"
#include <bits/stdc++.h>
using namespace std;
static int A[5000];
int d[5000], dd[5001], sg[5001];
void solve(int N) {
	for(int i = 1; i <= N - 1; i++){
		d[i] = query(i, i + 1);
	}
	sg[1] = 1;
	int cur_val = d[1];
	for(int i = 2; i <= N - 1; i++){
		int val = query(i - 1, i + 1);
		sg[i] = (abs(d[i - 1] + d[i]) == val ? 1 : -1) * sg[i - 1];
	}
	A[1] = 1;
	for(int i = 2; i <= N; i++){
		A[i] = A[i - 1] + d[i - 1] * sg[i - 1];
	}
	
	int mn = N + 1;
	for(int i = 1; i <= N; i++){
		mn = min(A[i], mn);
	}
	for(int i = 1; i <= N; i++){
		A[i] += 1 - mn;
	}
	
	if(A[1] > A[N]){
		for(int i = 1; i <= N; i++){
			A[i] = N + 1 - A[i];
		}
	}

	for(int i = 1; i <= N; i++) {
		answer(i, A[i]);
	}

}

Compilation message (stderr)

xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:11:6: warning: unused variable 'cur_val' [-Wunused-variable]
   11 |  int cur_val = d[1];
      |      ^~~~~~~

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