oj.uz

Submission #947198

# Submission time Handle Problem Language Result Execution time Memory
947198 2024-03-15T15:51:40 Z gesgha Event Hopping 2 (JOI21_event2) C++17
100 / 100
 135 ms 53432 KB 
#include <bits/stdc++.h>
// #pragma GCC target("popcnt")

#define fr(i, a, b) for(int i = a; i <= b; i++)
#define rf(i, a, b) for(int i = a; i >= b; i--)
#define fe(x, y) for (auto& x : y)

#define fi first
#define se second
#define pb push_back

#define all(x) x.begin(), x.end()
#define pw(x) (1LL << (x))
#define sz(x) (int)x.size()

using namespace std;

#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
#define fbo find_by_order
#define ook order_of_key
template <typename T>
using oset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

template <typename T>
using ve = vector <T>;

template <typename T>
bool umx (T& a, T b) { return a < b ? a = b, 1 : 0; }

template <typename T>
bool umn (T& a, T b) { return a > b ? a = b, 1 : 0; }

using ll = long long;
using ld = long double;
using pll = pair <ll, ll>;
using pii = pair <int, int>;
using ull = unsigned long long;

const int oo = 1e9 + 100;
const ll OO = 1e18;
const int N = 5e5 + 10;
const int M = 3e3 + 10;
const int mod = 998244353;
const bool TEST = 0;

mt19937_64 rng(228);
void precalc() {}




ll mn[N][20];
ll go[N];

int get(int l, int r) {
    int S = 0;
    for (int i = 19; i >= 0; i--) if (mn[l][i] <= r) {
        S += pw(i);
        l = mn[l][i];
    }
    return S;
}

void slv() {
    int n, k;
    cin >> n >> k;
    ve <array <ll, 3>> ev(n);
    ve <array <ll, 3>> V;
    
    for (int i = 0; i < n; i++) {
        cin >> ev[i][0] >> ev[i][1];
        V.pb({ev[i][0], i, 0});
        V.pb({ev[i][1], i, 1});
    }
    int c = 0;
    {
        sort(all(V));
        ev[V[0][1]][V[0][2]] = c;
        for (int i = 1; i < sz(V); i++) {
            c += bool(V[i][0] != V[i - 1][0]);
            ev[V[i][1]][V[i][2]] = c;
        }   
    }
    
    fill(go, go + 2 * n + 2, 2 * n);
    for (int i = 0; i < n; i++) {
        umn(go[ev[i][0]], ev[i][1]);
    }
    for (int i = 2 * n - 1; i >= 0; i--) umn(go[i], go[i + 1]);
    for (int i = 0; i < 20; i++) mn[2 * n][i] = 2 * n;
    for (int i = 2*n - 1; i >= 0; i--) {
        mn[i][0] = go[i];
        for (int st = 1; st < 20; st++) mn[i][st] = mn[mn[i][st - 1]][st - 1];
    }
    set <pii> Seg;
    int S = get(0, 2 * n - 1);
    if (S < k) {
        cout << "-1\n";
        exit(0);
    }
    ve <int> ans;
    for (int i = 0; i < n; i++) {
        int l = ev[i][0];
        int r = ev[i][1];
        int lt = 0, rt = 2 * n - 1;
        bool ok = 1;
        {
            auto it = Seg.lower_bound({l, -oo});
            if (it != Seg.end()) {
                ok &= ((*it).fi >= r);
                rt = (*it).fi;
            }
            if (it != Seg.begin()) {
                --it;
                lt = (*it).se;
                ok &= ((*it).se <= l);
            }
            
        }
        if(!ok) continue;
        int was = get(lt, rt);
        int have = S - was + get(lt, l) + get(r, rt) + 1;
        if (have >= k) {
            S = have;
            Seg.insert({l, r});
            ans.pb(i);
        }
        if (sz(ans) == k) break;
    }
    fe(x, ans) {
        cout << x + 1 << '\n';
    }

}

int main() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#else
    ios_base::sync_with_stdio(0);
    cin.tie(0);
#endif
    precalc();
    cout << fixed << setprecision(13);
    int q = 1;
    if (TEST) cin >> q;
    while (q--) slv();
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 127 ms 49896 KB Output is correct
5 Correct 93 ms 50284 KB Output is correct
6 Correct 93 ms 49336 KB Output is correct
7 Correct 88 ms 48824 KB Output is correct
8 Correct 107 ms 50116 KB Output is correct
9 Correct 95 ms 49592 KB Output is correct
10 Correct 91 ms 50104 KB Output is correct
11 Correct 93 ms 49468 KB Output is correct
12 Correct 87 ms 48616 KB Output is correct
13 Correct 81 ms 48460 KB Output is correct
14 Correct 79 ms 47392 KB Output is correct
15 Correct 74 ms 47796 KB Output is correct
16 Correct 52 ms 46516 KB Output is correct
17 Correct 50 ms 45244 KB Output is correct
18 Correct 49 ms 46276 KB Output is correct
19 Correct 47 ms 46008 KB Output is correct
20 Correct 47 ms 45496 KB Output is correct
21 Correct 51 ms 45748 KB Output is correct
22 Correct 51 ms 45744 KB Output is correct
23 Correct 47 ms 44992 KB Output is correct
24 Correct 48 ms 45836 KB Output is correct
25 Correct 48 ms 44736 KB Output is correct
26 Correct 60 ms 45500 KB Output is correct
27 Correct 51 ms 44728 KB Output is correct
28 Correct 49 ms 45000 KB Output is correct
29 Correct 45 ms 45472 KB Output is correct
30 Correct 46 ms 46016 KB Output is correct
31 Correct 45 ms 45760 KB Output is correct
32 Correct 46 ms 45236 KB Output is correct
33 Correct 48 ms 44984 KB Output is correct
34 Correct 76 ms 46372 KB Output is correct
35 Correct 61 ms 45760 KB Output is correct
36 Correct 57 ms 46260 KB Output is correct
37 Correct 74 ms 47548 KB Output is correct
38 Correct 72 ms 47288 KB Output is correct
39 Correct 87 ms 47032 KB Output is correct
40 Correct 74 ms 47644 KB Output is correct
41 Correct 88 ms 46964 KB Output is correct
42 Correct 62 ms 45344 KB Output is correct
43 Correct 92 ms 47332 KB Output is correct
44 Correct 96 ms 47960 KB Output is correct
45 Correct 83 ms 47076 KB Output is correct
46 Correct 86 ms 46800 KB Output is correct

Subtask #2
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2440 KB Output is correct
22 Correct 1 ms 2396 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2392 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2440 KB Output is correct
22 Correct 1 ms 2396 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2392 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 2 ms 4892 KB Output is correct
29 Correct 3 ms 4892 KB Output is correct
30 Correct 2 ms 4892 KB Output is correct
31 Correct 2 ms 4944 KB Output is correct
32 Correct 2 ms 4892 KB Output is correct
33 Correct 2 ms 4972 KB Output is correct
34 Correct 2 ms 4892 KB Output is correct
35 Correct 4 ms 4892 KB Output is correct
36 Correct 4 ms 4888 KB Output is correct
37 Correct 3 ms 4892 KB Output is correct
38 Correct 3 ms 5036 KB Output is correct
39 Correct 4 ms 4888 KB Output is correct
40 Correct 4 ms 4900 KB Output is correct
41 Correct 3 ms 5024 KB Output is correct
42 Correct 2 ms 4976 KB Output is correct
43 Correct 3 ms 5144 KB Output is correct
44 Correct 3 ms 4892 KB Output is correct
45 Correct 3 ms 4892 KB Output is correct
46 Correct 2 ms 4888 KB Output is correct
47 Correct 2 ms 4892 KB Output is correct
48 Correct 2 ms 4892 KB Output is correct
49 Correct 2 ms 4892 KB Output is correct
50 Correct 2 ms 4892 KB Output is correct
51 Correct 2 ms 4892 KB Output is correct
52 Correct 2 ms 4892 KB Output is correct
53 Correct 2 ms 4888 KB Output is correct
54 Correct 2 ms 4888 KB Output is correct
55 Correct 3 ms 4980 KB Output is correct
56 Correct 4 ms 4892 KB Output is correct
57 Correct 3 ms 4888 KB Output is correct
58 Correct 3 ms 4892 KB Output is correct
59 Correct 3 ms 4892 KB Output is correct
60 Correct 3 ms 4892 KB Output is correct
61 Correct 3 ms 4892 KB Output is correct
62 Correct 3 ms 4892 KB Output is correct
63 Correct 3 ms 4892 KB Output is correct
64 Correct 3 ms 4892 KB Output is correct

Subtask #4
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 127 ms 49896 KB Output is correct
5 Correct 93 ms 50284 KB Output is correct
6 Correct 93 ms 49336 KB Output is correct
7 Correct 88 ms 48824 KB Output is correct
8 Correct 107 ms 50116 KB Output is correct
9 Correct 95 ms 49592 KB Output is correct
10 Correct 91 ms 50104 KB Output is correct
11 Correct 93 ms 49468 KB Output is correct
12 Correct 87 ms 48616 KB Output is correct
13 Correct 81 ms 48460 KB Output is correct
14 Correct 79 ms 47392 KB Output is correct
15 Correct 74 ms 47796 KB Output is correct
16 Correct 52 ms 46516 KB Output is correct
17 Correct 50 ms 45244 KB Output is correct
18 Correct 49 ms 46276 KB Output is correct
19 Correct 47 ms 46008 KB Output is correct
20 Correct 47 ms 45496 KB Output is correct
21 Correct 51 ms 45748 KB Output is correct
22 Correct 51 ms 45744 KB Output is correct
23 Correct 47 ms 44992 KB Output is correct
24 Correct 48 ms 45836 KB Output is correct
25 Correct 48 ms 44736 KB Output is correct
26 Correct 60 ms 45500 KB Output is correct
27 Correct 51 ms 44728 KB Output is correct
28 Correct 49 ms 45000 KB Output is correct
29 Correct 45 ms 45472 KB Output is correct
30 Correct 46 ms 46016 KB Output is correct
31 Correct 45 ms 45760 KB Output is correct
32 Correct 46 ms 45236 KB Output is correct
33 Correct 48 ms 44984 KB Output is correct
34 Correct 76 ms 46372 KB Output is correct
35 Correct 61 ms 45760 KB Output is correct
36 Correct 57 ms 46260 KB Output is correct
37 Correct 74 ms 47548 KB Output is correct
38 Correct 72 ms 47288 KB Output is correct
39 Correct 87 ms 47032 KB Output is correct
40 Correct 74 ms 47644 KB Output is correct
41 Correct 88 ms 46964 KB Output is correct
42 Correct 62 ms 45344 KB Output is correct
43 Correct 92 ms 47332 KB Output is correct
44 Correct 96 ms 47960 KB Output is correct
45 Correct 83 ms 47076 KB Output is correct
46 Correct 86 ms 46800 KB Output is correct
47 Correct 1 ms 2396 KB Output is correct
48 Correct 1 ms 2396 KB Output is correct
49 Correct 1 ms 2396 KB Output is correct
50 Correct 1 ms 2396 KB Output is correct
51 Correct 0 ms 2396 KB Output is correct
52 Correct 1 ms 2396 KB Output is correct
53 Correct 1 ms 2396 KB Output is correct
54 Correct 1 ms 2392 KB Output is correct
55 Correct 1 ms 2396 KB Output is correct
56 Correct 1 ms 2396 KB Output is correct
57 Correct 1 ms 2396 KB Output is correct
58 Correct 1 ms 2396 KB Output is correct
59 Correct 1 ms 2392 KB Output is correct
60 Correct 1 ms 2396 KB Output is correct
61 Correct 1 ms 2396 KB Output is correct
62 Correct 1 ms 2396 KB Output is correct
63 Correct 1 ms 2396 KB Output is correct
64 Correct 1 ms 2396 KB Output is correct
65 Correct 1 ms 2392 KB Output is correct
66 Correct 1 ms 2396 KB Output is correct
67 Correct 1 ms 2440 KB Output is correct
68 Correct 1 ms 2396 KB Output is correct
69 Correct 1 ms 2396 KB Output is correct
70 Correct 1 ms 2396 KB Output is correct
71 Correct 1 ms 2396 KB Output is correct
72 Correct 1 ms 2392 KB Output is correct
73 Correct 1 ms 2396 KB Output is correct
74 Correct 2 ms 4892 KB Output is correct
75 Correct 3 ms 4892 KB Output is correct
76 Correct 2 ms 4892 KB Output is correct
77 Correct 2 ms 4944 KB Output is correct
78 Correct 2 ms 4892 KB Output is correct
79 Correct 2 ms 4972 KB Output is correct
80 Correct 2 ms 4892 KB Output is correct
81 Correct 4 ms 4892 KB Output is correct
82 Correct 4 ms 4888 KB Output is correct
83 Correct 3 ms 4892 KB Output is correct
84 Correct 3 ms 5036 KB Output is correct
85 Correct 4 ms 4888 KB Output is correct
86 Correct 4 ms 4900 KB Output is correct
87 Correct 3 ms 5024 KB Output is correct
88 Correct 2 ms 4976 KB Output is correct
89 Correct 3 ms 5144 KB Output is correct
90 Correct 3 ms 4892 KB Output is correct
91 Correct 3 ms 4892 KB Output is correct
92 Correct 2 ms 4888 KB Output is correct
93 Correct 2 ms 4892 KB Output is correct
94 Correct 2 ms 4892 KB Output is correct
95 Correct 2 ms 4892 KB Output is correct
96 Correct 2 ms 4892 KB Output is correct
97 Correct 2 ms 4892 KB Output is correct
98 Correct 2 ms 4892 KB Output is correct
99 Correct 2 ms 4888 KB Output is correct
100 Correct 2 ms 4888 KB Output is correct
101 Correct 3 ms 4980 KB Output is correct
102 Correct 4 ms 4892 KB Output is correct
103 Correct 3 ms 4888 KB Output is correct
104 Correct 3 ms 4892 KB Output is correct
105 Correct 3 ms 4892 KB Output is correct
106 Correct 3 ms 4892 KB Output is correct
107 Correct 3 ms 4892 KB Output is correct
108 Correct 3 ms 4892 KB Output is correct
109 Correct 3 ms 4892 KB Output is correct
110 Correct 3 ms 4892 KB Output is correct
111 Correct 66 ms 46608 KB Output is correct
112 Correct 60 ms 47728 KB Output is correct
113 Correct 62 ms 46952 KB Output is correct
114 Correct 60 ms 48060 KB Output is correct
115 Correct 56 ms 47084 KB Output is correct
116 Correct 62 ms 47672 KB Output is correct
117 Correct 60 ms 47748 KB Output is correct
118 Correct 129 ms 51612 KB Output is correct
119 Correct 135 ms 51644 KB Output is correct
120 Correct 124 ms 49620 KB Output is correct
121 Correct 56 ms 46524 KB Output is correct
122 Correct 102 ms 49768 KB Output is correct
123 Correct 101 ms 49368 KB Output is correct
124 Correct 114 ms 48952 KB Output is correct
125 Correct 59 ms 47796 KB Output is correct
126 Correct 78 ms 48312 KB Output is correct
127 Correct 72 ms 48084 KB Output is correct
128 Correct 69 ms 47032 KB Output is correct
129 Correct 54 ms 47800 KB Output is correct
130 Correct 66 ms 47812 KB Output is correct
131 Correct 62 ms 47284 KB Output is correct
132 Correct 62 ms 47244 KB Output is correct
133 Correct 57 ms 46720 KB Output is correct
134 Correct 59 ms 46524 KB Output is correct
135 Correct 60 ms 47180 KB Output is correct
136 Correct 58 ms 47728 KB Output is correct
137 Correct 53 ms 46832 KB Output is correct
138 Correct 56 ms 46572 KB Output is correct
139 Correct 58 ms 46784 KB Output is correct
140 Correct 53 ms 46776 KB Output is correct
141 Correct 53 ms 47796 KB Output is correct
142 Correct 86 ms 53012 KB Output is correct
143 Correct 90 ms 53364 KB Output is correct
144 Correct 93 ms 53252 KB Output is correct
145 Correct 91 ms 52404 KB Output is correct
146 Correct 87 ms 52652 KB Output is correct
147 Correct 87 ms 53172 KB Output is correct
148 Correct 81 ms 52156 KB Output is correct
149 Correct 82 ms 52324 KB Output is correct
150 Correct 81 ms 51972 KB Output is correct
151 Correct 76 ms 52148 KB Output is correct
152 Correct 43 ms 47284 KB Output is correct
153 Correct 85 ms 53432 KB Output is correct
154 Correct 85 ms 52520 KB Output is correct
155 Correct 83 ms 52172 KB Output is correct
156 Correct 83 ms 52508 KB Output is correct
157 Correct 82 ms 51640 KB Output is correct
158 Correct 81 ms 51896 KB Output is correct
159 Correct 79 ms 51648 KB Output is correct
160 Correct 42 ms 46524 KB Output is correct
161 Correct 99 ms 50308 KB Output is correct
162 Correct 92 ms 50104 KB Output is correct
163 Correct 90 ms 48940 KB Output is correct
164 Correct 86 ms 49848 KB Output is correct
165 Correct 85 ms 50100 KB Output is correct
166 Correct 54 ms 47592 KB Output is correct
167 Correct 80 ms 50356 KB Output is correct
168 Correct 77 ms 49100 KB Output is correct
169 Correct 80 ms 49288 KB Output is correct
170 Correct 79 ms 49588 KB Output is correct
171 Correct 70 ms 49492 KB Output is correct
172 Correct 71 ms 49356 KB Output is correct
173 Correct 95 ms 49216 KB Output is correct
174 Correct 95 ms 49596 KB Output is correct
175 Correct 95 ms 49356 KB Output is correct
176 Correct 87 ms 49472 KB Output is correct