제출 #1298188

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1298188		orgiloogii	버섯 세기 (IOI20_mushrooms)	C++20	컴파일 에러	0 ms	0 KiB

mushrooms

#include "mushrooms.h"
#include <bits/stdc++.h>
#define int long long
using namespace std;
//int count_mushrooms(int n) {
//	std::vector<int> m;
//	for (int i = 0; i < n; i++)
//		m.push_back(i);
//	int c1 = use_machine(m);
//	m = {0, 1};
//	int c2 = use_machine(m);
//	return c1+c2;
//}

int count_mushrooms(int n) {
//	vector <int> m;
	vector <int> as, bs;
	as.push_back(0);
	int i = 1;
	while (i < n && as.size() < 100 && bs.size() < 100) {
		if (use_machine({0, i}) == 1) {
			bs.push_back(i);
		}
		else {
			as.push_back(i);
		}
		i++;
	}
	if (i == n) {
		return as.size();
	}
	ans = as.size();
	if (bs.size() == 100) {
		while (i < n) {
			int j = i + 1;
			vector <int> m;
			while (j < n && j <= i + 100) {
				m.push_back(bs[j - i - 1]);
				m.push_back(j);
				j++;
			}
			int c = use_machine(m);
			if (c % 2 == 1) {
				ans += 1;
			}
			ans += c / 2;
			i = j;
		}
		return ans;
	}
	while (i < n) {
		int j = i + 1;
		int cnt = 0;
		vector <int> m;
		while (j < n && j <= i + 100) {
			m.push_back(as[j - i - 1]);
			m.push_back(j);
			j++;
			cnt++;
		}
		int c = use_machine(m);
		ans += cnt - (c / 2);
	}
	return ans;
	
}

컴파일 시 표준 에러 (stderr) 메시지

mushrooms.cpp: In function 'long long int count_mushrooms(long long int)':
mushrooms.cpp:21:37: warning: narrowing conversion of 'i' from 'long long int' to 'int' [-Wnarrowing]
   21 |                 if (use_machine({0, i}) == 1) {
      |                                     ^
mushrooms.cpp:21:37: warning: narrowing conversion of 'i' from 'long long int' to 'int' [-Wnarrowing]
mushrooms.cpp:32:9: error: 'ans' was not declared in this scope; did you mean 'as'?
   32 |         ans = as.size();
      |         ^~~
      |         as
mushrooms.cpp:42:45: error: could not convert 'm' from 'vector<long long int>' to 'vector<int>'
   42 |                         int c = use_machine(m);
      |                                             ^
      |                                             |
      |                                             vector<long long int>
mushrooms.cpp:61:37: error: could not convert 'm' from 'vector<long long int>' to 'vector<int>'
   61 |                 int c = use_machine(m);
      |                                     ^
      |                                     |
      |                                     vector<long long int>