oj.uz

답안 #742045

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
742045 2023-05-15T13:08:12 Z t6twotwo 순열 (APIO22_perm) C++17
98.3333 / 100
 32 ms 4356 KB 
#include "perm.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
map<ll, int> mp;
map<ll, int> q;
int solve(ll n) {
    if (n == 1) {
        return 0;
    }
    if (mp.count(n)) {
        return mp[n];
    }
    if (n % 2 == 0) {
        return mp[n] = solve(n / 2) + 1;
    }
    mp[n] = solve(n / 2) + 2;
    if (n % 3 == 0) {
		int x = solve(n / 3) + 2;
		if (x < mp[n]) {
			mp[n] = x;
			q[n] = 1;
		}
    } else {
		int x = solve(n / 3) + 3;
		if (x < mp[n]) {
			mp[n] = x;
			q[n] = 1;
		}
    }
    return mp[n];
}
vector<int> construct_permutation(ll k) {
	solve(k);
	vector<int> t;
	while (k > 1) {
		if (!q[k]) {
			t.push_back(-2 + k % 2);
			k /= 2;
		} else {
			t.push_back(k % 3);
			k /= 3;
		}
	}
	vector<int> ans;
	int v = 0, u = -1;
	for (int i = t.size() - 1; i >= 0; i--) {
		if (t[i] == -2) {
			ans.push_back(v++);
		} else if (t[i] == -1) {
			ans.push_back(v++);
			ans.push_back(u--);
		} else if (t[i] == 0) {
			ans.push_back(v + 1);
			ans.push_back(v);
			v += 2;
		} else if (t[i] == 1) {
			ans.push_back(v + 1);
			ans.push_back(v);
			ans.push_back(u--);
			v += 2;
		} else {
			ans.push_back(v + 1);
			ans.push_back(u--);
			ans.push_back(v);
			v += 2;
		}
	}
	int add = -*min_element(ans.begin(), ans.end());
	for (int &x : ans) {
		x += add;
	}
	return ans;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct

Subtask #2
88.333333335 / 90.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 11 ms 1492 KB Output is correct
6 Correct 14 ms 1872 KB Output is correct
7 Correct 20 ms 2968 KB Output is correct
8 Correct 31 ms 4332 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 32 ms 4356 KB Output is correct
12 Correct 27 ms 3704 KB Output is correct
13 Partially correct 30 ms 3788 KB Partially correct