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Submission #886086

# Submission time Handle Problem Language Result Execution time Memory
886086 2023-12-11T12:51:40 Z tienbinh Fortune Telling 2 (JOI14_fortune_telling2) C++14
100 / 100
 364 ms 74316 KB 
#include <bits/stdc++.h>

using namespace std;
#define name ""
#define all(x) x.begin(), x.end()
const int N = 2e5 + 7;
struct merge_sort_tree{
    int _l, _r, _m;
    vector<int> v;
    merge_sort_tree *lt, *rt;
    merge_sort_tree(int l, int r, const vector<int> &e) : _l(l), _r(r), _m((l + r) >> 1), v(r - l + 1) {
        if(l == r) v[0] = e[l], lt = rt = NULL;
        else {
            lt = new merge_sort_tree(_l, _m, e);
            rt = new merge_sort_tree(_m + 1, _r, e);
            merge(all(lt->v), all(rt->v), v.begin());
        }
    }
    int query(int qs, int qe, int x, int y) {
        if(qe < _l || qs > _r) return 0 ;
        if(qs <= _l && _r <= qe) return upper_bound(all(v), y) - lower_bound(all(v), x);
        return lt->query(qs, qe, x, y) + rt->query(qs, qe, x, y);
    }
};
int c_index[3 * N], tree[12 * N];
int a[N], b[N], c[N];
int n, m;
void build(int id , int l, int r) {
    if(l == r){
        tree[id] = c_index[l];
        return;
    }
    int mid = (l + r) >> 1;
    build(id << 1, l, mid);
    build(id << 1 | 1, mid + 1, r);
    tree[id] = max(tree[id << 1], tree[id << 1 | 1]);
}
int get(int u, int v, int id, int l, int r) {
    if(v < l || u > r) return 0;
    if(u <= l && r <= v) return tree[id];
    int mid = (l + r) >> 1;
    return max(get(u, v, id << 1, l, mid), get(u, v, id << 1 | 1, mid + 1, r));
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    if(fopen("bug.inp", "r"))
        freopen("bug.inp", "r", stdin), freopen("bug.out", "w", stdout);
    else if (fopen(name".inp", "r"))
        freopen(name".inp", "r", stdin), freopen(name".out", "w", stdout);
    cin >> n >> m;
    vector<int> compress;
    for (int i = 1; i <= n; i++) {
        cin >> a[i] >> b[i];
        compress.push_back(a[i]);
        compress.push_back(b[i]);
    }
    for (int i = 1; i <= m; i++) cin >> c[i], compress.push_back(c[i]);
    sort(all(compress));
    compress.erase(unique(all(compress)), compress.end());
    for (int i = 1; i <= n; i++) a[i] = lower_bound(all(compress), a[i]) - compress.begin() + 1;
    for (int i = 1; i <= n; i++) b[i] = lower_bound(all(compress), b[i]) - compress.begin() + 1;
    for (int i = 1; i <= m; i++){
        c[i] = lower_bound(all(compress), c[i]) - compress.begin() + 1;
        c_index[c[i]] = i;
    }
    build(1, 1, compress.size());
    merge_sort_tree ms(0, m + 1, vector<int> (c, c + m + 1));
    basic_string<int> ans;
    for (int i = 1; i <= n; i++) {
        if(a[i] == b[i]){
            ans += compress[a[i] - 1];
            continue;
        }
        bool swapp = (a[i] > b[i] ? (swap(a[i], b[i]), true) : false);
        int last_qr = get(a[i], b[i] - 1, 1, 1, compress.size());
        int cnt = ms.query(last_qr + 1, m, b[i], compress.size());
        if(last_qr != 0 || swapp) swap(a[i], b[i]);
        ans += compress[~cnt & 1 ? a[i] - 1 : b[i] - 1];
    }
    long long val = 0;
    for (int i : ans) val += i;
    cout << val;
    return 0;
}

Compilation message

fortune_telling2.cpp: In function 'int main()':
fortune_telling2.cpp:49:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   49 |         freopen("bug.inp", "r", stdin), freopen("bug.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
fortune_telling2.cpp:49:48: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   49 |         freopen("bug.inp", "r", stdin), freopen("bug.out", "w", stdout);
      |                                         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
fortune_telling2.cpp:51:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   51 |         freopen(name".inp", "r", stdin), freopen(name".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
fortune_telling2.cpp:51:49: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   51 |         freopen(name".inp", "r", stdin), freopen(name".out", "w", stdout);
      |                                          ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6744 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 2 ms 6876 KB Output is correct
4 Correct 2 ms 6748 KB Output is correct
5 Correct 2 ms 6896 KB Output is correct
6 Correct 2 ms 6744 KB Output is correct
7 Correct 2 ms 6748 KB Output is correct
8 Correct 2 ms 6748 KB Output is correct
9 Correct 3 ms 6744 KB Output is correct
10 Correct 2 ms 6748 KB Output is correct
11 Correct 2 ms 6748 KB Output is correct
12 Correct 2 ms 6880 KB Output is correct
13 Correct 2 ms 6748 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6744 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 2 ms 6876 KB Output is correct
4 Correct 2 ms 6748 KB Output is correct
5 Correct 2 ms 6896 KB Output is correct
6 Correct 2 ms 6744 KB Output is correct
7 Correct 2 ms 6748 KB Output is correct
8 Correct 2 ms 6748 KB Output is correct
9 Correct 3 ms 6744 KB Output is correct
10 Correct 2 ms 6748 KB Output is correct
11 Correct 2 ms 6748 KB Output is correct
12 Correct 2 ms 6880 KB Output is correct
13 Correct 2 ms 6748 KB Output is correct
14 Correct 14 ms 9248 KB Output is correct
15 Correct 27 ms 12244 KB Output is correct
16 Correct 41 ms 15180 KB Output is correct
17 Correct 56 ms 18128 KB Output is correct
18 Correct 58 ms 18024 KB Output is correct
19 Correct 55 ms 18164 KB Output is correct
20 Correct 61 ms 18128 KB Output is correct
21 Correct 56 ms 18072 KB Output is correct
22 Correct 42 ms 17616 KB Output is correct
23 Correct 42 ms 17708 KB Output is correct
24 Correct 49 ms 17540 KB Output is correct
25 Correct 44 ms 17620 KB Output is correct
26 Correct 53 ms 17840 KB Output is correct
27 Correct 76 ms 18040 KB Output is correct
28 Correct 55 ms 18128 KB Output is correct
29 Correct 112 ms 18128 KB Output is correct

Subtask #3
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6744 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 2 ms 6876 KB Output is correct
4 Correct 2 ms 6748 KB Output is correct
5 Correct 2 ms 6896 KB Output is correct
6 Correct 2 ms 6744 KB Output is correct
7 Correct 2 ms 6748 KB Output is correct
8 Correct 2 ms 6748 KB Output is correct
9 Correct 3 ms 6744 KB Output is correct
10 Correct 2 ms 6748 KB Output is correct
11 Correct 2 ms 6748 KB Output is correct
12 Correct 2 ms 6880 KB Output is correct
13 Correct 2 ms 6748 KB Output is correct
14 Correct 14 ms 9248 KB Output is correct
15 Correct 27 ms 12244 KB Output is correct
16 Correct 41 ms 15180 KB Output is correct
17 Correct 56 ms 18128 KB Output is correct
18 Correct 58 ms 18024 KB Output is correct
19 Correct 55 ms 18164 KB Output is correct
20 Correct 61 ms 18128 KB Output is correct
21 Correct 56 ms 18072 KB Output is correct
22 Correct 42 ms 17616 KB Output is correct
23 Correct 42 ms 17708 KB Output is correct
24 Correct 49 ms 17540 KB Output is correct
25 Correct 44 ms 17620 KB Output is correct
26 Correct 53 ms 17840 KB Output is correct
27 Correct 76 ms 18040 KB Output is correct
28 Correct 55 ms 18128 KB Output is correct
29 Correct 112 ms 18128 KB Output is correct
30 Correct 114 ms 61392 KB Output is correct
31 Correct 156 ms 64580 KB Output is correct
32 Correct 219 ms 66508 KB Output is correct
33 Correct 336 ms 72696 KB Output is correct
34 Correct 102 ms 60904 KB Output is correct
35 Correct 327 ms 73028 KB Output is correct
36 Correct 323 ms 73076 KB Output is correct
37 Correct 343 ms 74316 KB Output is correct
38 Correct 321 ms 73724 KB Output is correct
39 Correct 345 ms 73048 KB Output is correct
40 Correct 310 ms 72640 KB Output is correct
41 Correct 316 ms 74168 KB Output is correct
42 Correct 338 ms 73652 KB Output is correct
43 Correct 238 ms 73332 KB Output is correct
44 Correct 230 ms 71808 KB Output is correct
45 Correct 231 ms 72396 KB Output is correct
46 Correct 235 ms 68944 KB Output is correct
47 Correct 258 ms 65984 KB Output is correct
48 Correct 364 ms 71224 KB Output is correct
49 Correct 325 ms 71244 KB Output is correct