Submission #28897

#	Time	Username	Problem	Language	Result	Execution time	Memory
28897		kdh9949	LR Springboard (FXCUP2_springboard)	C++14	1 / 1	3 ms	2300 KiB

Main

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

vector<int> fv, rv;
set<int> ss;

void Reorder(int N){
	PutBall((N + 1) / 2);
	int t = PutBall((N + 1) / 2);
	int s, e;
	if(t == -1){ s = (N + 1) / 2; e = N; }
	else{ s = 0; e = (N - 1) / 2; }
	for(int i = s; i <= e; i++) ss.insert(i);
	while(ss.size() > 1){
		fv.clear(); rv.clear();
		int c = int(ss.size()) / 2;
		for(int i = 0; i < c; i++){
			fv.push_back(*ss.begin());
			ss.erase(ss.begin());
		}
		while(!ss.empty()){
			rv.push_back(*ss.begin());
			ss.erase(ss.begin());
		}
		int m = N - fv.back();
		int t = PutBall(m);
		if(t == -1) rv.clear();
		else fv.clear();
		for(auto &i : fv) ss.insert((i + m) % (N + 1));
		for(auto &i : rv) ss.insert((i + m) % (N + 1));
	}
	if(*ss.begin()) PutBall(N + 1 - *ss.begin());
}

• Subtask 1: 1 / 1