oj.uz

Submission #934548

# Submission time Handle Problem Language Result Execution time Memory
934548 2024-02-27T14:36:03 Z velislavgarkov Tourism (JOI23_tourism) C++14
28 / 100
 5000 ms 29636 KB 
#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
#define endl '\n'
const int MAXN=1e5+10;
const int BUCK=450;
struct Query {
    int l, r;
    int ind;
    bool friend operator < (Query a, Query b) {
        return a.r>b.r;
    }
};
Query que[MAXN];
vector <int> v[MAXN];
vector <int> arr, isl;
int c[MAXN];
int fe[MAXN], le[MAXN], in[MAXN], dep[MAXN];
int sp[2*MAXN][20], stepen[2*MAXN];
int n, m, q, cnt;
bool cmpi(int a, int b) {
    return in[a]<in[b];
}
void dfs(int x, int p) {
    in[x]=cnt;
    cnt++;
    fe[x]=arr.size();
    for (auto i:v[x]) {
        if (i==p) continue;
        arr.push_back(x);
        dep[i]=dep[x]+1;
        dfs(i,x);
    }
    le[x]=arr.size();
    arr.push_back(x);
}
void sparce_table() {
    int kn=arr.size();
    for (int i=0;i<kn;i++) sp[i][0]=arr[i];
    for (int i=1;(1<<i)<=kn;i++) {
        for (int j=0;j+(1<<i)-1<kn;j++) {
            int i1, i2;
            i1=sp[j][i-1];
            i2=sp[j + (1 << (i-1))][i-1];
            if (dep[i1]<dep[i2]) sp[j][i]=i1;
            else sp[j][i]=i2;
        }
    }
    int st=0;
    for (int i=1;i<=kn;i++) {
        if ((1 << (st+1))<i) st++;
        stepen[i]=st;
    }
}
int lca(int l, int r) {
    int st=stepen[r-l+1];
    int i1, i2;
    i1=sp[l][st];
    i2=sp[r - (1<<st)+1][st];
    if (dep[i1]<dep[i2]) return i1;
    return i2;
}
int getdist(int a, int b) {
    if (in[a]>in[b]) swap(a,b);
    return dep[a]+dep[b]-2*dep[lca(fe[a],fe[b])];
}
int main () {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int a, b;
    cin >> n >> m >> q;
    for (int i=0;i<n-1;i++) {
        cin >> a >> b;
        v[a].push_back(b);
        v[b].push_back(a);
    }
    cnt=1;
    dfs(1,-1);
    sparce_table();
    for (int i=1;i<=m;i++) cin >> c[i];
    int ans;
    for (int i=0;i<q;i++) {
        cin >> que[i].l >> que[i].r;
        if (!isl.empty()) isl.clear();
        for (int j=que[i].l;j<=que[i].r;j++) isl.push_back(c[j]);
        sort(isl.begin(),isl.end(),cmpi);
        ans=0;
        for (int j=1;j<isl.size();j++) ans+=getdist(isl[j-1],isl[j]);
        if (isl.size()>1) ans+=getdist(isl[0],isl.back());
        cout << ans/2+1 << endl;
        que[i].ind=i;
    }
    return 0;
}

Compilation message

tourism.cpp: In function 'int main()':
tourism.cpp:89:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   89 |         for (int j=1;j<isl.size();j++) ans+=getdist(isl[j-1],isl[j]);
      |                      ~^~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 2 ms 6492 KB Output is correct
4 Correct 3 ms 6488 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 3 ms 6492 KB Output is correct
10 Correct 3 ms 6492 KB Output is correct
11 Correct 3 ms 6492 KB Output is correct
12 Correct 6 ms 6492 KB Output is correct
13 Correct 6 ms 6488 KB Output is correct
14 Correct 6 ms 6492 KB Output is correct
15 Correct 4 ms 6712 KB Output is correct
16 Correct 3 ms 6492 KB Output is correct
17 Correct 3 ms 6492 KB Output is correct
18 Correct 3 ms 6704 KB Output is correct
19 Correct 4 ms 6504 KB Output is correct
20 Correct 3 ms 6492 KB Output is correct
21 Correct 3 ms 6492 KB Output is correct
22 Correct 3 ms 6492 KB Output is correct
23 Correct 3 ms 6492 KB Output is correct
24 Correct 3 ms 6492 KB Output is correct
25 Correct 3 ms 6492 KB Output is correct
26 Correct 3 ms 6492 KB Output is correct
27 Correct 2 ms 6492 KB Output is correct
28 Correct 1 ms 6492 KB Output is correct
29 Correct 1 ms 6492 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 2 ms 6492 KB Output is correct
4 Correct 3 ms 6488 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 3 ms 6492 KB Output is correct
10 Correct 3 ms 6492 KB Output is correct
11 Correct 3 ms 6492 KB Output is correct
12 Correct 6 ms 6492 KB Output is correct
13 Correct 6 ms 6488 KB Output is correct
14 Correct 6 ms 6492 KB Output is correct
15 Correct 4 ms 6712 KB Output is correct
16 Correct 3 ms 6492 KB Output is correct
17 Correct 3 ms 6492 KB Output is correct
18 Correct 3 ms 6704 KB Output is correct
19 Correct 4 ms 6504 KB Output is correct
20 Correct 3 ms 6492 KB Output is correct
21 Correct 3 ms 6492 KB Output is correct
22 Correct 3 ms 6492 KB Output is correct
23 Correct 3 ms 6492 KB Output is correct
24 Correct 3 ms 6492 KB Output is correct
25 Correct 3 ms 6492 KB Output is correct
26 Correct 3 ms 6492 KB Output is correct
27 Correct 2 ms 6492 KB Output is correct
28 Correct 1 ms 6492 KB Output is correct
29 Correct 1 ms 6492 KB Output is correct
30 Correct 46 ms 6744 KB Output is correct
31 Correct 62 ms 6804 KB Output is correct
32 Correct 89 ms 6748 KB Output is correct
33 Correct 91 ms 6748 KB Output is correct
34 Correct 90 ms 6748 KB Output is correct
35 Correct 286 ms 6996 KB Output is correct
36 Correct 283 ms 6840 KB Output is correct
37 Correct 287 ms 7084 KB Output is correct
38 Correct 102 ms 6748 KB Output is correct
39 Correct 89 ms 6744 KB Output is correct
40 Correct 87 ms 6928 KB Output is correct
41 Correct 284 ms 6996 KB Output is correct
42 Correct 282 ms 6972 KB Output is correct
43 Correct 300 ms 6748 KB Output is correct
44 Correct 86 ms 7136 KB Output is correct
45 Correct 90 ms 6872 KB Output is correct
46 Correct 91 ms 6892 KB Output is correct
47 Correct 284 ms 6744 KB Output is correct
48 Correct 284 ms 6748 KB Output is correct
49 Correct 282 ms 6892 KB Output is correct
50 Correct 94 ms 6992 KB Output is correct
51 Correct 93 ms 7092 KB Output is correct
52 Correct 92 ms 6744 KB Output is correct
53 Correct 88 ms 6748 KB Output is correct
54 Correct 89 ms 6744 KB Output is correct
55 Correct 92 ms 6848 KB Output is correct
56 Correct 28 ms 6492 KB Output is correct
57 Correct 2 ms 6748 KB Output is correct
58 Correct 2 ms 6748 KB Output is correct

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6576 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 28 ms 6724 KB Output is correct
4 Execution timed out 5039 ms 22328 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 27 ms 18344 KB Output is correct
3 Correct 38 ms 18696 KB Output is correct
4 Correct 33 ms 21192 KB Output is correct
5 Correct 62 ms 27848 KB Output is correct
6 Correct 64 ms 27340 KB Output is correct
7 Correct 62 ms 27000 KB Output is correct
8 Correct 61 ms 26896 KB Output is correct
9 Correct 58 ms 27080 KB Output is correct
10 Correct 60 ms 27084 KB Output is correct
11 Correct 58 ms 27092 KB Output is correct
12 Correct 58 ms 27080 KB Output is correct
13 Correct 68 ms 27336 KB Output is correct
14 Correct 69 ms 28032 KB Output is correct
15 Correct 72 ms 29460 KB Output is correct
16 Correct 63 ms 27588 KB Output is correct
17 Correct 72 ms 27568 KB Output is correct
18 Correct 66 ms 27592 KB Output is correct
19 Correct 58 ms 27844 KB Output is correct
20 Correct 59 ms 27236 KB Output is correct
21 Correct 70 ms 27080 KB Output is correct
22 Correct 74 ms 27080 KB Output is correct
23 Correct 77 ms 26928 KB Output is correct
24 Correct 59 ms 27076 KB Output is correct
25 Correct 56 ms 27068 KB Output is correct
26 Correct 58 ms 27120 KB Output is correct
27 Correct 53 ms 27076 KB Output is correct
28 Correct 60 ms 27076 KB Output is correct
29 Correct 55 ms 27100 KB Output is correct
30 Correct 56 ms 27076 KB Output is correct
31 Correct 54 ms 27328 KB Output is correct
32 Correct 54 ms 27424 KB Output is correct
33 Correct 61 ms 28352 KB Output is correct
34 Correct 84 ms 29636 KB Output is correct

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6744 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 29 ms 6704 KB Output is correct
4 Execution timed out 5027 ms 19144 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #6
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 2 ms 6492 KB Output is correct
4 Correct 3 ms 6488 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 3 ms 6492 KB Output is correct
10 Correct 3 ms 6492 KB Output is correct
11 Correct 3 ms 6492 KB Output is correct
12 Correct 6 ms 6492 KB Output is correct
13 Correct 6 ms 6488 KB Output is correct
14 Correct 6 ms 6492 KB Output is correct
15 Correct 4 ms 6712 KB Output is correct
16 Correct 3 ms 6492 KB Output is correct
17 Correct 3 ms 6492 KB Output is correct
18 Correct 3 ms 6704 KB Output is correct
19 Correct 4 ms 6504 KB Output is correct
20 Correct 3 ms 6492 KB Output is correct
21 Correct 3 ms 6492 KB Output is correct
22 Correct 3 ms 6492 KB Output is correct
23 Correct 3 ms 6492 KB Output is correct
24 Correct 3 ms 6492 KB Output is correct
25 Correct 3 ms 6492 KB Output is correct
26 Correct 3 ms 6492 KB Output is correct
27 Correct 2 ms 6492 KB Output is correct
28 Correct 1 ms 6492 KB Output is correct
29 Correct 1 ms 6492 KB Output is correct
30 Correct 46 ms 6744 KB Output is correct
31 Correct 62 ms 6804 KB Output is correct
32 Correct 89 ms 6748 KB Output is correct
33 Correct 91 ms 6748 KB Output is correct
34 Correct 90 ms 6748 KB Output is correct
35 Correct 286 ms 6996 KB Output is correct
36 Correct 283 ms 6840 KB Output is correct
37 Correct 287 ms 7084 KB Output is correct
38 Correct 102 ms 6748 KB Output is correct
39 Correct 89 ms 6744 KB Output is correct
40 Correct 87 ms 6928 KB Output is correct
41 Correct 284 ms 6996 KB Output is correct
42 Correct 282 ms 6972 KB Output is correct
43 Correct 300 ms 6748 KB Output is correct
44 Correct 86 ms 7136 KB Output is correct
45 Correct 90 ms 6872 KB Output is correct
46 Correct 91 ms 6892 KB Output is correct
47 Correct 284 ms 6744 KB Output is correct
48 Correct 284 ms 6748 KB Output is correct
49 Correct 282 ms 6892 KB Output is correct
50 Correct 94 ms 6992 KB Output is correct
51 Correct 93 ms 7092 KB Output is correct
52 Correct 92 ms 6744 KB Output is correct
53 Correct 88 ms 6748 KB Output is correct
54 Correct 89 ms 6744 KB Output is correct
55 Correct 92 ms 6848 KB Output is correct
56 Correct 28 ms 6492 KB Output is correct
57 Correct 2 ms 6748 KB Output is correct
58 Correct 2 ms 6748 KB Output is correct
59 Correct 2 ms 6576 KB Output is correct
60 Correct 2 ms 6492 KB Output is correct
61 Correct 28 ms 6724 KB Output is correct
62 Execution timed out 5039 ms 22328 KB Time limit exceeded
63 Halted 0 ms 0 KB -