oj.uz

답안 #535425

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
535425 2022-03-10T09:19:02 Z mario05092929 늑대인간 (IOI18_werewolf) C++14
100 / 100
 1355 ms 136960 KB 
#include "werewolf.h"
#include <bits/stdc++.h>
#define x first
#define y second
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair <int,int> pi;
typedef vector <int> vec;
const int INF = 1e9;
int n,m,Q,uni[200005];
vector <int> v[200005],tvn[200005],tv1[200005];
int p1[200005][18],pn[200005][18];
int in1[200005],inn[200005],out1[200005],outn[200005],co;
int bu[200005];
vector <int> t[800005];

int Find(int x) {return (x == uni[x] ? x : uni[x] = Find(uni[x]));}

void dfs_mark1(int x) {
    in1[x] = ++co;
    for(int i : tv1[x]) dfs_mark1(i);
    out1[x] = co;
}

void dfs_markn(int x) {
    inn[x] = ++co;
    for(int i : tvn[x]) dfs_markn(i);
    outn[x] = co;
}

void build(int x,int l,int r) {
    if(l == r) {
        t[x].push_back(bu[l]);
        return;
    }
    int mid = (l + r) >> 1;
    build(x*2,l,mid), build(x*2+1,mid+1,r);
    for(int i : t[x*2]) t[x].push_back(i);
    for(int i : t[x*2+1]) t[x].push_back(i);
    sort(t[x].begin(),t[x].end());
}

int query(int x,int l,int r,int rl,int rr,int ql,int qr) {
    if(rl <= l&&r <= rr) {
        int it1 = upper_bound(t[x].begin(),t[x].end(),qr)-t[x].begin()-1, it2 = lower_bound(t[x].begin(),t[x].end(),ql)-t[x].begin()-1;
        return (it1-it2 > 0);
    }
    if(rl > r||l > rr) return 0;
    int mid = (l + r) >> 1;
    return (query(x*2,l,mid,rl,rr,ql,qr)||query(x*2+1,mid+1,r,rl,rr,ql,qr));
}

vec check_validity(int N,vec X,vec Y,vec S,vec E,vec L,vec R) {
    n = N, m = X.size(), Q = S.size();
    for(int i = 0;i < m;i++) {
        X[i]++, Y[i]++;
        v[X[i]].push_back(Y[i]);
        v[Y[i]].push_back(X[i]);
    }
    for(int i = 0;i < Q;i++) {
        S[i]++, E[i]++, L[i]++, R[i]++;
    }
    pn[n][0] = n, p1[1][0] = 1;
    for(int i = 1;i <= n;i++) uni[i] = i;
    for(int i = 1;i <= n;i++) {
        for(int j : v[i]) {
            if(j < i) {
                if(Find(j) != i) {
                    int tmp = Find(j); uni[tmp] = i;
                    pn[tmp][0] = i, tvn[i].push_back(tmp);
                }
            }
        }
    }
    for(int i = 1;i <= n;i++) uni[i] = i;
    for(int i = n;i >= 1;i--) {
        for(int j : v[i]) {
            if(j > i) {
                if(Find(j) != i) {
                    int tmp = Find(j); uni[tmp] = i;
                    p1[tmp][0] = i, tv1[i].push_back(tmp);
                }
            }
        }
    }
    for(int i = 1;i < 18;i++) {
        for(int j = 1;j <= n;j++) {
            pn[j][i] = pn[pn[j][i-1]][i-1];
            p1[j][i] = p1[p1[j][i-1]][i-1];
        }
    }
    dfs_mark1(1); co = 0;
    dfs_markn(n);
    for(int i = 1;i <= n;i++) bu[inn[i]] = in1[i];
    build(1,1,n);
    vec ans;
    for(int i = 0;i < Q;i++) {
        int l,r,x = E[i],l2,r2;
        for(int j = 17;j >= 0;j--) {
            if(pn[x][j] <= R[i]) x = pn[x][j];
        }
        l = inn[x], r = outn[x]; x = S[i];

        for(int j = 17;j >= 0;j--) {
            if(p1[x][j] >= L[i]) x = p1[x][j];
        }
        l2 = in1[x], r2 = out1[x];
        ans.push_back(query(1,1,n,l,r,l2,r2));
    }
    return ans;
}

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 16 ms 33204 KB Output is correct
2 Correct 17 ms 33228 KB Output is correct
3 Correct 19 ms 33204 KB Output is correct
4 Correct 20 ms 33236 KB Output is correct
5 Correct 16 ms 33204 KB Output is correct
6 Correct 17 ms 33236 KB Output is correct
7 Correct 16 ms 33236 KB Output is correct
8 Correct 18 ms 33236 KB Output is correct
9 Correct 17 ms 33156 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 16 ms 33204 KB Output is correct
2 Correct 17 ms 33228 KB Output is correct
3 Correct 19 ms 33204 KB Output is correct
4 Correct 20 ms 33236 KB Output is correct
5 Correct 16 ms 33204 KB Output is correct
6 Correct 17 ms 33236 KB Output is correct
7 Correct 16 ms 33236 KB Output is correct
8 Correct 18 ms 33236 KB Output is correct
9 Correct 17 ms 33156 KB Output is correct
10 Correct 23 ms 34548 KB Output is correct
11 Correct 23 ms 34496 KB Output is correct
12 Correct 21 ms 34568 KB Output is correct
13 Correct 27 ms 34644 KB Output is correct
14 Correct 24 ms 34640 KB Output is correct
15 Correct 25 ms 34664 KB Output is correct

Subtask #3
34.0 / 34.0

# 결과 실행 시간 메모리 Grader output
1 Correct 831 ms 126960 KB Output is correct
2 Correct 753 ms 128828 KB Output is correct
3 Correct 745 ms 127528 KB Output is correct
4 Correct 862 ms 127100 KB Output is correct
5 Correct 904 ms 127084 KB Output is correct
6 Correct 963 ms 126940 KB Output is correct
7 Correct 944 ms 126916 KB Output is correct
8 Correct 825 ms 128944 KB Output is correct
9 Correct 782 ms 127612 KB Output is correct
10 Correct 658 ms 127052 KB Output is correct
11 Correct 681 ms 127112 KB Output is correct
12 Correct 892 ms 126972 KB Output is correct
13 Correct 980 ms 133816 KB Output is correct
14 Correct 949 ms 133808 KB Output is correct
15 Correct 1025 ms 133724 KB Output is correct
16 Correct 1032 ms 133724 KB Output is correct
17 Correct 870 ms 126968 KB Output is correct

Subtask #4
51.0 / 51.0

# 결과 실행 시간 메모리 Grader output
1 Correct 16 ms 33204 KB Output is correct
2 Correct 17 ms 33228 KB Output is correct
3 Correct 19 ms 33204 KB Output is correct
4 Correct 20 ms 33236 KB Output is correct
5 Correct 16 ms 33204 KB Output is correct
6 Correct 17 ms 33236 KB Output is correct
7 Correct 16 ms 33236 KB Output is correct
8 Correct 18 ms 33236 KB Output is correct
9 Correct 17 ms 33156 KB Output is correct
10 Correct 23 ms 34548 KB Output is correct
11 Correct 23 ms 34496 KB Output is correct
12 Correct 21 ms 34568 KB Output is correct
13 Correct 27 ms 34644 KB Output is correct
14 Correct 24 ms 34640 KB Output is correct
15 Correct 25 ms 34664 KB Output is correct
16 Correct 831 ms 126960 KB Output is correct
17 Correct 753 ms 128828 KB Output is correct
18 Correct 745 ms 127528 KB Output is correct
19 Correct 862 ms 127100 KB Output is correct
20 Correct 904 ms 127084 KB Output is correct
21 Correct 963 ms 126940 KB Output is correct
22 Correct 944 ms 126916 KB Output is correct
23 Correct 825 ms 128944 KB Output is correct
24 Correct 782 ms 127612 KB Output is correct
25 Correct 658 ms 127052 KB Output is correct
26 Correct 681 ms 127112 KB Output is correct
27 Correct 892 ms 126972 KB Output is correct
28 Correct 980 ms 133816 KB Output is correct
29 Correct 949 ms 133808 KB Output is correct
30 Correct 1025 ms 133724 KB Output is correct
31 Correct 1032 ms 133724 KB Output is correct
32 Correct 870 ms 126968 KB Output is correct
33 Correct 1173 ms 127020 KB Output is correct
34 Correct 322 ms 65136 KB Output is correct
35 Correct 1215 ms 128992 KB Output is correct
36 Correct 1041 ms 127480 KB Output is correct
37 Correct 1225 ms 128300 KB Output is correct
38 Correct 1155 ms 128012 KB Output is correct
39 Correct 1355 ms 133576 KB Output is correct
40 Correct 1164 ms 136960 KB Output is correct
41 Correct 965 ms 127860 KB Output is correct
42 Correct 792 ms 127556 KB Output is correct
43 Correct 1088 ms 133516 KB Output is correct
44 Correct 1067 ms 128392 KB Output is correct
45 Correct 989 ms 133968 KB Output is correct
46 Correct 945 ms 133560 KB Output is correct
47 Correct 986 ms 133868 KB Output is correct
48 Correct 1014 ms 133816 KB Output is correct
49 Correct 1046 ms 133924 KB Output is correct
50 Correct 1034 ms 133844 KB Output is correct
51 Correct 1082 ms 136792 KB Output is correct
52 Correct 1124 ms 136780 KB Output is correct