oj.uz

답안 #797913

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
797913 2023-07-30T06:47:45 Z azberjibiou Passport (JOI23_passport) C++17
100 / 100
 651 ms 109372 KB 
#include <bits/stdc++.h>
#define all(v) v.begin(), v.end()
#define gibon ios::sync_with_stdio(false); cin.tie(0);
#define fi first
#define se second
#define pdd pair<long double, long double>
#define pii pair<int, int>
#define pll pair<ll, ll>
#define ppi pair<pii, pii>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
typedef long long ll;
using namespace std;
const int mxN=200006;
const int mxM=10004;
const int MOD=1e9;
const ll INF=1e18;
int N;
int L[mxN], R[mxN];
vector <pii> v[6*mxN];
int dp[mxN];
int dis[6*mxN];
void input()
{
    cin >> N;
    for(int i=1;i<=N;i++)   cin >> L[i] >> R[i];
}
void init(int idx, int s, int e)
{
    if(s==e)
    {
        v[s].emplace_back(N+idx, 0);
        return;
    }
    v[N+2*idx].emplace_back(N+idx, 0);
    v[N+2*idx+1].emplace_back(N+idx, 0);
    int mid=(s+e)/2;
    init(2*idx, s, mid);
    init(2*idx+1, mid+1, e);
}
void make_edge(int idx, int s1, int e1, int s2, int e2, int pos)
{
    if(s2>e1 || s1>e2)  return;
    if(s2<=s1 && e1<=e2)
    {
        v[N+idx].emplace_back(pos, 1);
        return;
    }
    int mid=(s1+e1)/2;
    make_edge(2*idx, s1, mid, s2, e2, pos);
    make_edge(2*idx+1, mid+1, e1, s2, e2, pos);
}
void bfs(int src)
{
    for(int i=1;i<=6*N+1;i++) dis[i]=MOD;
    deque <pii> deq;
    deq.emplace_back(src, 0);
    while(deq.size())
    {
        auto [now, x]=deq.front();
        deq.pop_front();
        if(dis[now]!=MOD)   continue;
        dis[now]=x;
        for(auto [nxt, val] : v[now])   if(dis[nxt]==MOD)
        {
            if(val==0)  deq.emplace_front(nxt, x);
            else    deq.emplace_back(nxt, x+1);
        }
    }
}
void make_graph()
{
    init(1, 1, N);
    for(int i=1;i<=N;i++)   make_edge(1, 1, N, L[i], R[i], i);
    v[6*N+1].emplace_back(5*N+1, 1);
    for(int i=1;i<N;i++)    v[5*N+i].emplace_back(5*N+i+1, 1);

}
void solv_dis()
{
    bfs(N);
    for(int i=1;i<=N;i++)   dp[i]+=dis[i];
    bfs(1);
    for(int i=1;i<=N;i++)   dp[i]+=dis[i];
    for(int i=2;i<N;i++)    dp[i]--;
    for(int i=1;i<=N;i++)
    {
        if(dp[i]<=N)    v[5*N+dp[i]].emplace_back(i, 0);
    }
    bfs(6*N+1);
}
int main()
{
    gibon
    input();
    make_graph();
    solv_dis();
    int T;
    cin >> T;
    while(T--)
    {
        int a;
        cin >> a;
        cout << (dis[a]>=MOD ? -1 : dis[a]) << '\n';
    }
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 28524 KB Output is correct
2 Correct 13 ms 28500 KB Output is correct
3 Correct 13 ms 28524 KB Output is correct
4 Correct 588 ms 106976 KB Output is correct
5 Correct 244 ms 71648 KB Output is correct
6 Correct 155 ms 67408 KB Output is correct
7 Correct 105 ms 67776 KB Output is correct
8 Correct 107 ms 67564 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 28528 KB Output is correct
2 Correct 16 ms 28524 KB Output is correct
3 Correct 13 ms 28444 KB Output is correct
4 Correct 13 ms 28500 KB Output is correct
5 Correct 14 ms 28500 KB Output is correct
6 Correct 15 ms 28420 KB Output is correct
7 Correct 15 ms 28524 KB Output is correct
8 Correct 14 ms 28500 KB Output is correct
9 Correct 14 ms 28448 KB Output is correct
10 Correct 14 ms 28412 KB Output is correct
11 Correct 14 ms 28592 KB Output is correct
12 Correct 14 ms 28500 KB Output is correct
13 Correct 16 ms 28600 KB Output is correct
14 Correct 14 ms 28500 KB Output is correct
15 Correct 14 ms 28528 KB Output is correct

Subtask #3
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 28528 KB Output is correct
2 Correct 16 ms 28524 KB Output is correct
3 Correct 13 ms 28444 KB Output is correct
4 Correct 13 ms 28500 KB Output is correct
5 Correct 14 ms 28500 KB Output is correct
6 Correct 15 ms 28420 KB Output is correct
7 Correct 15 ms 28524 KB Output is correct
8 Correct 14 ms 28500 KB Output is correct
9 Correct 14 ms 28448 KB Output is correct
10 Correct 14 ms 28412 KB Output is correct
11 Correct 14 ms 28592 KB Output is correct
12 Correct 14 ms 28500 KB Output is correct
13 Correct 16 ms 28600 KB Output is correct
14 Correct 14 ms 28500 KB Output is correct
15 Correct 14 ms 28528 KB Output is correct
16 Correct 16 ms 29172 KB Output is correct
17 Correct 17 ms 28980 KB Output is correct
18 Correct 16 ms 29228 KB Output is correct
19 Correct 16 ms 29268 KB Output is correct
20 Correct 15 ms 28992 KB Output is correct
21 Correct 15 ms 28920 KB Output is correct
22 Correct 15 ms 28940 KB Output is correct
23 Correct 16 ms 29084 KB Output is correct
24 Correct 15 ms 29140 KB Output is correct

Subtask #4
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 28528 KB Output is correct
2 Correct 16 ms 28524 KB Output is correct
3 Correct 13 ms 28444 KB Output is correct
4 Correct 13 ms 28500 KB Output is correct
5 Correct 14 ms 28500 KB Output is correct
6 Correct 15 ms 28420 KB Output is correct
7 Correct 15 ms 28524 KB Output is correct
8 Correct 14 ms 28500 KB Output is correct
9 Correct 14 ms 28448 KB Output is correct
10 Correct 14 ms 28412 KB Output is correct
11 Correct 14 ms 28592 KB Output is correct
12 Correct 14 ms 28500 KB Output is correct
13 Correct 16 ms 28600 KB Output is correct
14 Correct 14 ms 28500 KB Output is correct
15 Correct 14 ms 28528 KB Output is correct
16 Correct 16 ms 29172 KB Output is correct
17 Correct 17 ms 28980 KB Output is correct
18 Correct 16 ms 29228 KB Output is correct
19 Correct 16 ms 29268 KB Output is correct
20 Correct 15 ms 28992 KB Output is correct
21 Correct 15 ms 28920 KB Output is correct
22 Correct 15 ms 28940 KB Output is correct
23 Correct 16 ms 29084 KB Output is correct
24 Correct 15 ms 29140 KB Output is correct
25 Correct 13 ms 28520 KB Output is correct
26 Correct 13 ms 28500 KB Output is correct
27 Correct 16 ms 29268 KB Output is correct
28 Correct 15 ms 28988 KB Output is correct
29 Correct 15 ms 28952 KB Output is correct
30 Correct 15 ms 29052 KB Output is correct
31 Correct 16 ms 29104 KB Output is correct

Subtask #5
46.0 / 46.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 28524 KB Output is correct
2 Correct 13 ms 28500 KB Output is correct
3 Correct 13 ms 28524 KB Output is correct
4 Correct 588 ms 106976 KB Output is correct
5 Correct 244 ms 71648 KB Output is correct
6 Correct 155 ms 67408 KB Output is correct
7 Correct 105 ms 67776 KB Output is correct
8 Correct 107 ms 67564 KB Output is correct
9 Correct 15 ms 28528 KB Output is correct
10 Correct 16 ms 28524 KB Output is correct
11 Correct 13 ms 28444 KB Output is correct
12 Correct 13 ms 28500 KB Output is correct
13 Correct 14 ms 28500 KB Output is correct
14 Correct 15 ms 28420 KB Output is correct
15 Correct 15 ms 28524 KB Output is correct
16 Correct 14 ms 28500 KB Output is correct
17 Correct 14 ms 28448 KB Output is correct
18 Correct 14 ms 28412 KB Output is correct
19 Correct 14 ms 28592 KB Output is correct
20 Correct 14 ms 28500 KB Output is correct
21 Correct 16 ms 28600 KB Output is correct
22 Correct 14 ms 28500 KB Output is correct
23 Correct 14 ms 28528 KB Output is correct
24 Correct 16 ms 29172 KB Output is correct
25 Correct 17 ms 28980 KB Output is correct
26 Correct 16 ms 29228 KB Output is correct
27 Correct 16 ms 29268 KB Output is correct
28 Correct 15 ms 28992 KB Output is correct
29 Correct 15 ms 28920 KB Output is correct
30 Correct 15 ms 28940 KB Output is correct
31 Correct 16 ms 29084 KB Output is correct
32 Correct 15 ms 29140 KB Output is correct
33 Correct 13 ms 28520 KB Output is correct
34 Correct 13 ms 28500 KB Output is correct
35 Correct 16 ms 29268 KB Output is correct
36 Correct 15 ms 28988 KB Output is correct
37 Correct 15 ms 28952 KB Output is correct
38 Correct 15 ms 29052 KB Output is correct
39 Correct 16 ms 29104 KB Output is correct
40 Correct 651 ms 109372 KB Output is correct
41 Correct 269 ms 74632 KB Output is correct
42 Correct 357 ms 98468 KB Output is correct
43 Correct 345 ms 101088 KB Output is correct
44 Correct 186 ms 70160 KB Output is correct
45 Correct 237 ms 73604 KB Output is correct
46 Correct 95 ms 46024 KB Output is correct
47 Correct 317 ms 79880 KB Output is correct
48 Correct 278 ms 84120 KB Output is correct