제출 #647548

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
647548		ghostwriter	도서관 (JOI18_library)	C++14	100 / 100	547 ms	336 KiB

library

#include <cstdio>
#include <vector>
#include "library.h"
using namespace std;
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include <debug.h>
#include "grader.cpp"
#else
#define debug(...)
#endif
#define ft front
#define bk back
#define st first
#define nd second
#define ins insert
#define ers erase
#define pb push_back
#define pf push_front
#define _pb pop_back
#define _pf pop_front
#define lb lower_bound
#define ub upper_bound
#define mtp make_tuple
#define bg begin
#define ed end
#define all(x) (x).bg(), (x).ed()
#define sz(x) (int)(x).size()
typedef long long ll; typedef unsigned long long ull;
typedef double db; typedef long double ldb;
typedef pair<int, int> pi; typedef pair<ll, ll> pll;
typedef vector<int> vi; typedef vector<ll> vll; typedef vector<pi> vpi; typedef vector<pll> vpll;
typedef string str;
template<typename T> T gcd(T a, T b) { return (b == 0? a : gcd(b, a % b)); }
template<typename T> T lcm(T a, T b) { return a / gcd(a, b) * b; }
#define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
#define FOS(i, r, l) for (int (i) = (r); (i) >= (l); --(i))
#define FRN(i, n) for (int (i) = 0; (i) < (n); ++(i))
#define FSN(i, n) for (int (i) = (n) - 1; (i) >= 0; --(i))
#define EACH(i, x) for (auto &(i) : (x))
#define WHILE while
#define file "TEST"
mt19937 rd(chrono::steady_clock::now().time_since_epoch().count());
ll rand(ll l, ll r) { return uniform_int_distribution<ll>(l, r)(rd); }
/*
----------------------------------------------------------------
    END OF TEMPLATE
----------------------------------------------------------------
    Tran The Bao - ghostwriter
    Training for VOI23 gold medal
----------------------------------------------------------------
    DIT ME CHUYEN BAO LOC
----------------------------------------------------------------
*/
void Solve(int N)
{
	if (N == 1) {
		Answer(vi(1, 1));
		return;
	}
	vi ans(N, 0), M(N, 0);
	int bpos = -1;
	FRN(i, N) {
		EACH(j, M) j = 0;
		FRN(z, N)
			if (z != i)
			M[z] = 1;
		int cur = Query(M);
		if (cur == 1) bpos = i + 1;
	}
	ans[0] = bpos;
	vi index;
	FOR(i, 1, N)
		if (i != bpos)
			index.pb(i);
	FOR(i, 1, N - 1) {
		int l = 0, r = sz(index) - 1, ans1 = -1;
		WHILE(l <= r) {
			int mid = l + (r - l) / 2;
			EACH(j, M) j = 0;
			FRN(j, i) M[ans[j] - 1] = 1;
			FOR(j, 0, mid) M[index[j] - 1] = 1;
			int cur = Query(M);
			M[ans[i - 1] - 1] = 0;
			int cur1 = Query(M);
			if ((i > 1 && cur1 > cur) || (i == 1 && cur1 == cur)) {
				ans1 = mid;
				r = mid - 1;
			}
			else l = mid + 1;
		}
		ans[i] = index[ans1];
		vi tmp;
		EACH(j, index)
			if (j != index[ans1])
				tmp.pb(j);
		swap(index, tmp);
	}
	Answer(ans);
}
/*
5
4
2
5
3
1
----------------------------------------------------------------
From Benq:
    stuff you should look for
        * int overflow, array bounds
        * special cases (n=1?)
        * do smth instead of nothing and stay organized
        * WRITE STUFF DOWN
        * DON'T GET STUCK ON ONE APPROACH
----------------------------------------------------------------
*/

컴파일 시 표준 에러 (stderr) 메시지

library.cpp: In function 'void Solve(int)':
library.cpp:39:28: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   39 | #define FRN(i, n) for (int (i) = 0; (i) < (n); ++(i))
      |                            ^
library.cpp:64:2: note: in expansion of macro 'FRN'
   64 |  FRN(i, N) {
      |  ^~~
library.cpp:41:31: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
   41 | #define EACH(i, x) for (auto &(i) : (x))
      |                               ^
library.cpp:65:3: note: in expansion of macro 'EACH'
   65 |   EACH(j, M) j = 0;
      |   ^~~~
library.cpp:39:28: warning: unnecessary parentheses in declaration of 'z' [-Wparentheses]
   39 | #define FRN(i, n) for (int (i) = 0; (i) < (n); ++(i))
      |                            ^
library.cpp:66:3: note: in expansion of macro 'FRN'
   66 |   FRN(z, N)
      |   ^~~
library.cpp:37:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   37 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
library.cpp:74:2: note: in expansion of macro 'FOR'
   74 |  FOR(i, 1, N)
      |  ^~~
library.cpp:37:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   37 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
library.cpp:77:2: note: in expansion of macro 'FOR'
   77 |  FOR(i, 1, N - 1) {
      |  ^~~
library.cpp:41:31: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
   41 | #define EACH(i, x) for (auto &(i) : (x))
      |                               ^
library.cpp:81:4: note: in expansion of macro 'EACH'
   81 |    EACH(j, M) j = 0;
      |    ^~~~
library.cpp:39:28: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
   39 | #define FRN(i, n) for (int (i) = 0; (i) < (n); ++(i))
      |                            ^
library.cpp:82:4: note: in expansion of macro 'FRN'
   82 |    FRN(j, i) M[ans[j] - 1] = 1;
      |    ^~~
library.cpp:37:31: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
   37 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
library.cpp:83:4: note: in expansion of macro 'FOR'
   83 |    FOR(j, 0, mid) M[index[j] - 1] = 1;
      |    ^~~
library.cpp:41:31: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
   41 | #define EACH(i, x) for (auto &(i) : (x))
      |                               ^
library.cpp:95:3: note: in expansion of macro 'EACH'
   95 |   EACH(j, index)
      |   ^~~~

• Subtask 1: 19 / 19
• Subtask 2: 81 / 81