제출 #1277946

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1277946		cmiuc	Unscrambling a Messy Bug (IOI16_messy)	C++20	0 / 100	1 ms	572 KiB

messy

#include <iostream>
#include <vector>
#include "messy.h"

using namespace std;
vector<int> Ans, vc;

void Write(int n, int l, int r, string s){
	if (n == 0)
		return;
	for (int i=l;i<l + n;i++){
		s[i] = '1';
		add_element(s);
		s[i] = '0';
	}
	string s1 = s, s2 = s;

	for (int i=l;i<l + n;i++){
		s1[i + n] = '1';
		s2[i] = '1';
	}
	Write(n / 2, l, l + n, s1);
	Write(n / 2, l + n, r, s2);
}

void Read(int n, int l, int r, string s, vector<int> pos){
	if (n == 1){
		Ans[l] = pos[0];
		return;
	}
	vector<int> v1, v2;
	string s1 = s, s2 = s;

	for (int i=0;i<n;i++){
		s[pos[i]] = '1';
		if (check_element(s))
			v1.push_back(pos[i]);
		else
			v2.push_back(pos[i]);
		s[pos[i]] = '0';
	}
	if (v1.size() != s2.size())
		cout<<1 / 0;

	for (int i : v1)
		s2[i] = '1';
	for (int i : v2)
		s1[i] = '1';

	n /= 2;
	Read(n, l, l + n, s1, v1);
	Read(n, l + n, r, s2, v2);
}

vector<int> restore_permutation(int n, int w, int r){
	Ans.resize(n);
	string s;
	for (int i=0;i<n;i++)
		vc.push_back(i), s += '0';

	Write(n / 2, 0, n, s);

	compile_set();

	Read(n, 0, n, s, vc);

	return Ans;
}

컴파일 시 표준 에러 (stderr) 메시지

messy.cpp: In function 'void Read(int, int, int, std::string, std::vector<int>)':
messy.cpp:43:25: warning: division by zero [-Wdiv-by-zero]
   43 |                 cout<<1 / 0;
      |                       ~~^~~
messy.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
messy_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 18
• Subtask 3: 0 / 11
• Subtask 4: 0 / 21
• Subtask 5: 0 / 30