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답안 #531821

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
531821 2022-03-01T15:30:09 Z Killer2501 Osumnjičeni (COCI21_osumnjiceni) C++14
110 / 110
 344 ms 42096 KB 
#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define ull unsigned long long
#define pb push_back
#define pll pair<ll, ll>
#define pii pair<ll, int>
#define fi first
#define se second
using namespace std;
const int N = 2e5+5;
const int M = 250;
const int mod = 1e9+7;
const ll base = 75;
const ll inf = 1e16;
int n, lab[N], t, c[N], h[N], P[N][20], m, a[N], b[N], ans, d[N], k;
vector<int> adj[N];
vector<int> vi;
string s;
bool vis[N];
void add(int& x, int y)
{
    x += y;
    if(x >= mod)x -= mod;
}
int findp(int u)
{
    return lab[u] < 0 ? u : lab[u] = findp(lab[u]);
}
void hop(int u, int v)
{
    u = findp(u);
    v = findp(v);
    if(u == v)return;
    if(lab[u] > lab[v])swap(u, v);
    lab[u] += lab[v];
    lab[v] = u;
}
pii p[N];
void sol()
{
    cin >> n;
    for(int i = 1; i <= n; i ++)cin >> p[i].fi >> p[i].se;
    set<pii> seg;
    for(int i = 1, j = 1; i <= n; i ++)
    {
        while(j <= n)
        {
            auto it = seg.lower_bound(make_pair(p[j].fi, 0));
            if(it != seg.end() && (*it).fi <= p[j].se)break;
            if(it != seg.begin())
            {
                --it;
                if((*it).se >= p[j].fi)break;
            }
            seg.insert(p[j]);
            ++j;
        }
        seg.erase(p[i]);
        P[i][0] = j;
        //cout << i <<" "<<j<<'\n';
    }
    for(int j = 1; j <= 18; j ++)
    {
        for(int i = 1; i <= n; i ++)
        {
            if(P[i][j-1])
                P[i][j] = P[P[i][j-1]][j-1];
        }
    }

    cin >> m;
    while(m -- > 0)
    {
        int l, r;
        cin >> l >> r;
        ans = 1;
        for(int j = 18; j >= 0; j --)
        {
            if(P[l][j] && P[l][j] <= r)
            {
                ans += (1<<j);
                l = P[l][j];
            }
        }
        cout << ans << '\n';

    }
}
int main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    #define task "test"
    if(fopen(task".inp", "r"))
    {
        freopen(task".inp", "r", stdin);
        freopen(task".out", "w", stdout);
    }
    int test = 1;
    //cin >> test;
    while(test -- > 0)sol();
    return 0;
}
/*
1234
21
*/

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:98:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   98 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:99:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   99 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 89 ms 22908 KB Output is correct
2 Correct 97 ms 26344 KB Output is correct
3 Correct 83 ms 26332 KB Output is correct
4 Correct 119 ms 26568 KB Output is correct
5 Correct 89 ms 27588 KB Output is correct
6 Correct 80 ms 25480 KB Output is correct
7 Correct 82 ms 25916 KB Output is correct
8 Correct 90 ms 26076 KB Output is correct
9 Correct 95 ms 26488 KB Output is correct
10 Correct 111 ms 25760 KB Output is correct
11 Correct 233 ms 38940 KB Output is correct
12 Correct 213 ms 36688 KB Output is correct
13 Correct 223 ms 36676 KB Output is correct
14 Correct 194 ms 33576 KB Output is correct
15 Correct 179 ms 31280 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 85 ms 27184 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 5452 KB Output is correct
2 Correct 7 ms 5540 KB Output is correct
3 Correct 8 ms 5528 KB Output is correct
4 Correct 7 ms 5556 KB Output is correct
5 Correct 5 ms 5580 KB Output is correct
6 Correct 6 ms 5580 KB Output is correct
7 Correct 6 ms 5580 KB Output is correct
8 Correct 6 ms 5580 KB Output is correct
9 Correct 7 ms 5556 KB Output is correct
10 Correct 6 ms 5580 KB Output is correct
11 Correct 7 ms 5824 KB Output is correct
12 Correct 8 ms 5836 KB Output is correct
13 Correct 9 ms 5836 KB Output is correct
14 Correct 7 ms 5660 KB Output is correct
15 Correct 7 ms 5708 KB Output is correct
16 Correct 3 ms 5024 KB Output is correct
17 Correct 6 ms 5580 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 5452 KB Output is correct
2 Correct 7 ms 5540 KB Output is correct
3 Correct 8 ms 5528 KB Output is correct
4 Correct 7 ms 5556 KB Output is correct
5 Correct 5 ms 5580 KB Output is correct
6 Correct 6 ms 5580 KB Output is correct
7 Correct 6 ms 5580 KB Output is correct
8 Correct 6 ms 5580 KB Output is correct
9 Correct 7 ms 5556 KB Output is correct
10 Correct 6 ms 5580 KB Output is correct
11 Correct 7 ms 5824 KB Output is correct
12 Correct 8 ms 5836 KB Output is correct
13 Correct 9 ms 5836 KB Output is correct
14 Correct 7 ms 5660 KB Output is correct
15 Correct 7 ms 5708 KB Output is correct
16 Correct 3 ms 5024 KB Output is correct
17 Correct 6 ms 5580 KB Output is correct
18 Correct 72 ms 8228 KB Output is correct
19 Correct 82 ms 8008 KB Output is correct
20 Correct 90 ms 8260 KB Output is correct
21 Correct 66 ms 8004 KB Output is correct
22 Correct 67 ms 8136 KB Output is correct
23 Correct 72 ms 8004 KB Output is correct
24 Correct 79 ms 8108 KB Output is correct
25 Correct 72 ms 8132 KB Output is correct
26 Correct 68 ms 8044 KB Output is correct
27 Correct 77 ms 7884 KB Output is correct
28 Correct 50 ms 7852 KB Output is correct
29 Correct 50 ms 7956 KB Output is correct
30 Correct 49 ms 8004 KB Output is correct
31 Correct 52 ms 7736 KB Output is correct
32 Correct 65 ms 7820 KB Output is correct
33 Correct 3 ms 4940 KB Output is correct
34 Correct 58 ms 7876 KB Output is correct

Subtask #4
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 87 ms 23776 KB Output is correct
2 Correct 90 ms 27100 KB Output is correct
3 Correct 85 ms 25540 KB Output is correct
4 Correct 79 ms 25396 KB Output is correct
5 Correct 87 ms 26048 KB Output is correct
6 Correct 74 ms 25708 KB Output is correct
7 Correct 92 ms 25428 KB Output is correct
8 Correct 101 ms 25644 KB Output is correct
9 Correct 81 ms 25412 KB Output is correct
10 Correct 94 ms 27028 KB Output is correct
11 Correct 209 ms 36520 KB Output is correct
12 Correct 283 ms 39540 KB Output is correct
13 Correct 238 ms 36480 KB Output is correct
14 Correct 174 ms 31332 KB Output is correct
15 Correct 233 ms 33888 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 72 ms 26032 KB Output is correct

Subtask #5
50.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 89 ms 22908 KB Output is correct
2 Correct 97 ms 26344 KB Output is correct
3 Correct 83 ms 26332 KB Output is correct
4 Correct 119 ms 26568 KB Output is correct
5 Correct 89 ms 27588 KB Output is correct
6 Correct 80 ms 25480 KB Output is correct
7 Correct 82 ms 25916 KB Output is correct
8 Correct 90 ms 26076 KB Output is correct
9 Correct 95 ms 26488 KB Output is correct
10 Correct 111 ms 25760 KB Output is correct
11 Correct 233 ms 38940 KB Output is correct
12 Correct 213 ms 36688 KB Output is correct
13 Correct 223 ms 36676 KB Output is correct
14 Correct 194 ms 33576 KB Output is correct
15 Correct 179 ms 31280 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 85 ms 27184 KB Output is correct
18 Correct 6 ms 5452 KB Output is correct
19 Correct 7 ms 5540 KB Output is correct
20 Correct 8 ms 5528 KB Output is correct
21 Correct 7 ms 5556 KB Output is correct
22 Correct 5 ms 5580 KB Output is correct
23 Correct 6 ms 5580 KB Output is correct
24 Correct 6 ms 5580 KB Output is correct
25 Correct 6 ms 5580 KB Output is correct
26 Correct 7 ms 5556 KB Output is correct
27 Correct 6 ms 5580 KB Output is correct
28 Correct 7 ms 5824 KB Output is correct
29 Correct 8 ms 5836 KB Output is correct
30 Correct 9 ms 5836 KB Output is correct
31 Correct 7 ms 5660 KB Output is correct
32 Correct 7 ms 5708 KB Output is correct
33 Correct 3 ms 5024 KB Output is correct
34 Correct 6 ms 5580 KB Output is correct
35 Correct 72 ms 8228 KB Output is correct
36 Correct 82 ms 8008 KB Output is correct
37 Correct 90 ms 8260 KB Output is correct
38 Correct 66 ms 8004 KB Output is correct
39 Correct 67 ms 8136 KB Output is correct
40 Correct 72 ms 8004 KB Output is correct
41 Correct 79 ms 8108 KB Output is correct
42 Correct 72 ms 8132 KB Output is correct
43 Correct 68 ms 8044 KB Output is correct
44 Correct 77 ms 7884 KB Output is correct
45 Correct 50 ms 7852 KB Output is correct
46 Correct 50 ms 7956 KB Output is correct
47 Correct 49 ms 8004 KB Output is correct
48 Correct 52 ms 7736 KB Output is correct
49 Correct 65 ms 7820 KB Output is correct
50 Correct 3 ms 4940 KB Output is correct
51 Correct 58 ms 7876 KB Output is correct
52 Correct 87 ms 23776 KB Output is correct
53 Correct 90 ms 27100 KB Output is correct
54 Correct 85 ms 25540 KB Output is correct
55 Correct 79 ms 25396 KB Output is correct
56 Correct 87 ms 26048 KB Output is correct
57 Correct 74 ms 25708 KB Output is correct
58 Correct 92 ms 25428 KB Output is correct
59 Correct 101 ms 25644 KB Output is correct
60 Correct 81 ms 25412 KB Output is correct
61 Correct 94 ms 27028 KB Output is correct
62 Correct 209 ms 36520 KB Output is correct
63 Correct 283 ms 39540 KB Output is correct
64 Correct 238 ms 36480 KB Output is correct
65 Correct 174 ms 31332 KB Output is correct
66 Correct 233 ms 33888 KB Output is correct
67 Correct 3 ms 4940 KB Output is correct
68 Correct 72 ms 26032 KB Output is correct
69 Correct 251 ms 29508 KB Output is correct
70 Correct 261 ms 30916 KB Output is correct
71 Correct 280 ms 28864 KB Output is correct
72 Correct 246 ms 30280 KB Output is correct
73 Correct 317 ms 29712 KB Output is correct
74 Correct 299 ms 31028 KB Output is correct
75 Correct 261 ms 29220 KB Output is correct
76 Correct 265 ms 31100 KB Output is correct
77 Correct 284 ms 29016 KB Output is correct
78 Correct 239 ms 29468 KB Output is correct
79 Correct 344 ms 42096 KB Output is correct
80 Correct 272 ms 39460 KB Output is correct
81 Correct 293 ms 39236 KB Output is correct
82 Correct 273 ms 34540 KB Output is correct
83 Correct 227 ms 33388 KB Output is correct
84 Correct 3 ms 4940 KB Output is correct
85 Correct 176 ms 29140 KB Output is correct