oj.uz

답안 #756723

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
756723 2023-06-12T06:42:57 Z boris_mihov 자동 인형 (IOI18_doll) C++17
37 / 100
 117 ms 12916 KB 
#include <algorithm>
#include <iostream>
#include <cassert>
#include <numeric>
#include <vector>
#include "doll.h"

typedef long long llong;
const int MAXN = 1000000 + 10;
const int MAXS = 1000000 + 10;
const int INF  = 1e9;

int n, m, cnt;
int prefix[MAXN];
std::vector <int> a, x, y, c;
int perm[MAXN];
int treeRoot;

void rec(int l, int r, int root)
{
    assert(l != r);
    if (prefix[r + 1] - prefix[l] == 0)
    {
        x[root - 1] = -root;
        y[root - 1] = -treeRoot;
        return;
    }

    if (l + 1 == r)
    {
        if (perm[l] < a.size()) y[root - 1] = a[perm[l]];
        else y[root - 1] = -treeRoot;

        if (perm[r] < a.size()) x[root - 1] = a[perm[r]];
        else x[root - 1] = -treeRoot;
        return;
    }

    int mid = (l + r) / 2;
    x.push_back(-INF);
    x.push_back(-INF);
    y.push_back(-INF);
    y.push_back(-INF);
    cnt += 2;

    y[root - 1] = -(cnt - 1);
    x[root - 1] = -cnt;
    rec(l, mid, -y[root - 1]);
    rec(mid + 1, r, -x[root - 1]);
}

int reversed(int x, int bits)
{
    int res = 0;
    for (int i = 0 ; i < bits ; ++i)
    {
        if (x & (1 << i))
        {
            res |= (1 << bits - 1 - i);
        }
    }

    return res;
}

void create_circuit(int M, std::vector <int> A)
{
    m = M; n = A.size(); A.push_back(0); a = A;
    c.resize(m + 1);

    if (a.size() == 1)
    {
        c[a[0]] = 0;
    } else
    {
        for (int i = 0 ; i <= m ; ++i)
        {
            c[i] = -1;
        }

        int sz = 1, bits = 0;
        while (sz < a.size())
        {
            sz <<= 1;
            bits++;
        }

        x.push_back(-INF);
        y.push_back(-INF);
        std::reverse(a.begin(), a.end());
        std::iota(perm, perm + sz, 0);
        
        for (int i = 0 ; i < sz ; ++i)
        {
            int rev = reversed(i, bits);
            if (perm[i] > perm[rev])
            {
                std::swap(perm[i], perm[rev]);
            }
        }

        for (int i = 0 ; i < sz ; ++i)
        {
            prefix[i + 1] = prefix[i] + (perm[i] < a.size());
        }

        cnt++;
        treeRoot = cnt;
        rec(0, sz - 1, cnt);
    }

    while (x.size() && x.back() == -INF)
    {
        x.pop_back();
        y.pop_back();
    }

    answer(c, x, y);
}

Compilation message

doll.cpp: In function 'void rec(int, int, int)':
doll.cpp:31:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |         if (perm[l] < a.size()) y[root - 1] = a[perm[l]];
      |             ~~~~~~~~^~~~~~~~~~
doll.cpp:34:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |         if (perm[r] < a.size()) x[root - 1] = a[perm[r]];
      |             ~~~~~~~~^~~~~~~~~~
doll.cpp: In function 'int reversed(int, int)':
doll.cpp:59:35: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   59 |             res |= (1 << bits - 1 - i);
      |                          ~~~~~~~~~^~~
doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:82:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   82 |         while (sz < a.size())
      |                ~~~^~~~~~~~~~
doll.cpp:104:50: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  104 |             prefix[i + 1] = prefix[i] + (perm[i] < a.size());
      |                                          ~~~~~~~~^~~~~~~~~~

Subtask #1
0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
9.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Partially correct 0 ms 212 KB Output is partially correct
2 Partially correct 82 ms 10296 KB Output is partially correct
3 Partially correct 78 ms 10300 KB Output is partially correct
4 Partially correct 90 ms 11960 KB Output is partially correct

Subtask #6
28.0 / 56.0

# 결과 실행 시간 메모리 Grader output
1 Partially correct 0 ms 212 KB Output is partially correct
2 Partially correct 82 ms 10296 KB Output is partially correct
3 Partially correct 78 ms 10300 KB Output is partially correct
4 Partially correct 90 ms 11960 KB Output is partially correct
5 Partially correct 117 ms 12916 KB Output is partially correct
6 Partially correct 105 ms 12812 KB Output is partially correct
7 Partially correct 87 ms 12868 KB Output is partially correct
8 Partially correct 98 ms 12620 KB Output is partially correct
9 Partially correct 84 ms 10216 KB Output is partially correct
10 Partially correct 95 ms 12640 KB Output is partially correct
11 Partially correct 95 ms 12344 KB Output is partially correct
12 Partially correct 78 ms 10464 KB Output is partially correct
13 Partially correct 80 ms 10780 KB Output is partially correct
14 Partially correct 80 ms 10856 KB Output is partially correct
15 Partially correct 79 ms 10952 KB Output is partially correct
16 Partially correct 3 ms 596 KB Output is partially correct
17 Correct 49 ms 7232 KB Output is correct
18 Partially correct 84 ms 10564 KB Output is partially correct
19 Partially correct 76 ms 10460 KB Output is partially correct
20 Partially correct 85 ms 12480 KB Output is partially correct
21 Partially correct 109 ms 12352 KB Output is partially correct
22 Partially correct 87 ms 12324 KB Output is partially correct