oj.uz

답안 #427971

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
427971 2021-06-15T06:23:34 Z 최서현(#7494) Corporate life (after hostile takover) (CPSPC17_corpo) C++17
100 / 100
 381 ms 47884 KB 
#include <iostream>
#include <vector>
#include <tuple>
#define tiiii tuple<int, int, int, int>

using namespace std;

vector<int> A[202020];
vector<int> B[202020];
int cntA = 0;
int cntB = 0;
vector<int> ordA, ordB;
int inA[202020];
int outA[202020];
int inB[202020];
int outB[202020];

void dfsA(int x)
{
    inA[x] = cntA++;
    ordA.push_back(x);
    for(auto y : A[x]) dfsA(y);
    outA[x] = cntA;
}

int fen[202020];
void upd(int pos)
{
    ++pos;
    while(pos < 202020)
    {
        fen[pos]++;
        pos += pos & -pos;
    }
}
int qry(int pos)
{
    int ret = 0;
    while(pos)
    {
        ret += fen[pos];
        pos &= pos - 1;
    }
    return ret;
}

void dfsB(int x)
{
    inB[x] = cntB++;
    ordB.push_back(x);
    for(auto y : B[x]) dfsB(y);
    outB[x] = cntB;
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

//    freopen("in.txt", "r", stdin);

    int n; cin >> n;
    for(int i = 1; i < n; ++i)
    {
        int x; cin >> x; --x;
        A[x].push_back(i);
    }
    for(int i = 1; i < n; ++i)
    {
        int x; cin >> x; --x;
        B[x].push_back(i);
    }

    dfsA(0);
    dfsB(0);

    int R[n]; for(int i = 0; i < n; ++i) R[ordA[i]] = i;
    int Q[n]; for(int i = 0; i < n; ++i) Q[i] = R[ordB[i]];

    vector<tiiii> ls[n + 1];
    for(int i = 0; i < n; ++i)
    {
        ls[inB[i]].push_back({inA[i], outA[i], i, -1});
        ls[outB[i]].push_back({inA[i], outA[i], i, 1});
    }

    int ans[n]{};
    for(int i = 0; i <= n; ++i)
    {
        for(auto [l, r, q, c] : ls[i])
            ans[q] += c * (qry(r) - qry(l));
        if(i < n) upd(Q[i]);
    }

    for(int i = 0; i < n; ++i) cout << ans[i] - 1 << ' ';
}

Subtask #1
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9804 KB Output is correct
2 Correct 8 ms 9804 KB Output is correct
3 Correct 6 ms 9804 KB Output is correct
4 Correct 6 ms 9804 KB Output is correct
5 Correct 7 ms 9884 KB Output is correct
6 Correct 6 ms 9804 KB Output is correct
7 Correct 7 ms 9880 KB Output is correct
8 Correct 8 ms 9932 KB Output is correct
9 Correct 7 ms 9932 KB Output is correct
10 Correct 7 ms 9932 KB Output is correct
11 Correct 7 ms 9932 KB Output is correct
12 Correct 7 ms 10008 KB Output is correct
13 Correct 7 ms 9952 KB Output is correct
14 Correct 8 ms 9932 KB Output is correct
15 Correct 8 ms 10116 KB Output is correct
16 Correct 10 ms 10144 KB Output is correct
17 Correct 9 ms 10132 KB Output is correct
18 Correct 10 ms 10128 KB Output is correct
19 Correct 8 ms 10216 KB Output is correct
20 Correct 10 ms 10188 KB Output is correct
21 Correct 8 ms 10188 KB Output is correct

Subtask #2
70.0 / 70.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9804 KB Output is correct
2 Correct 8 ms 9804 KB Output is correct
3 Correct 6 ms 9804 KB Output is correct
4 Correct 6 ms 9804 KB Output is correct
5 Correct 7 ms 9884 KB Output is correct
6 Correct 6 ms 9804 KB Output is correct
7 Correct 7 ms 9880 KB Output is correct
8 Correct 8 ms 9932 KB Output is correct
9 Correct 7 ms 9932 KB Output is correct
10 Correct 7 ms 9932 KB Output is correct
11 Correct 7 ms 9932 KB Output is correct
12 Correct 7 ms 10008 KB Output is correct
13 Correct 7 ms 9952 KB Output is correct
14 Correct 8 ms 9932 KB Output is correct
15 Correct 8 ms 10116 KB Output is correct
16 Correct 10 ms 10144 KB Output is correct
17 Correct 9 ms 10132 KB Output is correct
18 Correct 10 ms 10128 KB Output is correct
19 Correct 8 ms 10216 KB Output is correct
20 Correct 10 ms 10188 KB Output is correct
21 Correct 8 ms 10188 KB Output is correct
22 Correct 120 ms 25220 KB Output is correct
23 Correct 155 ms 25916 KB Output is correct
24 Correct 172 ms 27196 KB Output is correct
25 Correct 117 ms 28312 KB Output is correct
26 Correct 137 ms 28824 KB Output is correct
27 Correct 145 ms 28848 KB Output is correct
28 Correct 130 ms 28776 KB Output is correct
29 Correct 315 ms 39044 KB Output is correct
30 Correct 369 ms 40292 KB Output is correct
31 Correct 381 ms 42868 KB Output is correct
32 Correct 340 ms 43636 KB Output is correct
33 Correct 285 ms 45980 KB Output is correct
34 Correct 358 ms 45968 KB Output is correct
35 Correct 321 ms 45852 KB Output is correct
36 Correct 373 ms 40556 KB Output is correct
37 Correct 312 ms 41904 KB Output is correct
38 Correct 375 ms 44580 KB Output is correct
39 Correct 306 ms 45368 KB Output is correct
40 Correct 365 ms 47820 KB Output is correct
41 Correct 343 ms 47836 KB Output is correct
42 Correct 351 ms 47884 KB Output is correct