답안 #707199

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
707199 2023-03-08T15:13:56 Z Alihan_8 Exhibition (JOI19_ho_t2) C++17
100 / 100
69 ms 5580 KB
#include <bits/stdc++.h>
// include <ext/pb_ds/assoc_container.hpp>
// include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
using namespace std;
#define all(x) x.begin(), x.end()
#define pb push_back
// define ordered_set tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>
#define mpr make_pair
#define ln '\n'
void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
#define int long long
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int n, m; cin >> n >> m;
    vector <pair<int,int>> p(n);
    for ( auto &[r, l]: p ) cin >> l >> r;
    vector <int> C(m);
    for ( auto &i: C ) cin >> i;
    sort(all(C)); sort(all(p));
    for ( auto &[l, r]: p ) swap(l, r);
    auto ok = [&](int X){
        int it = 0;
        for ( int i = m-X; i < m; i++ ){
            while ( it < n and p[it].first > C[i] ) it++;
            if ( it == n ) return false;
            it++;
        }
        return true;
    };
    int l = 0, r = min(m+1, n+1);
    while ( l+1 < r ){
        int md = (l+r) >> 1;
        if ( ok(md) ) l = md;
        else r = md;
    }
    cout << l;

    cout << '\n';
}

Compilation message

joi2019_ho_t2.cpp: In function 'void IO(std::string)':
joi2019_ho_t2.cpp:11:29: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
joi2019_ho_t2.cpp:11:70: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                                                               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 324 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 316 KB Output is correct
8 Correct 1 ms 320 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 320 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 324 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 316 KB Output is correct
8 Correct 1 ms 320 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 320 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 2 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 368 KB Output is correct
29 Correct 1 ms 328 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 372 KB Output is correct
32 Correct 1 ms 356 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 2 ms 340 KB Output is correct
37 Correct 2 ms 308 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 324 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 316 KB Output is correct
8 Correct 1 ms 320 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 320 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 2 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 368 KB Output is correct
29 Correct 1 ms 328 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 372 KB Output is correct
32 Correct 1 ms 356 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 2 ms 340 KB Output is correct
37 Correct 2 ms 308 KB Output is correct
38 Correct 45 ms 2792 KB Output is correct
39 Correct 45 ms 2796 KB Output is correct
40 Correct 41 ms 2788 KB Output is correct
41 Correct 53 ms 2792 KB Output is correct
42 Correct 47 ms 2796 KB Output is correct
43 Correct 60 ms 2792 KB Output is correct
44 Correct 46 ms 2788 KB Output is correct
45 Correct 51 ms 2792 KB Output is correct
46 Correct 41 ms 2784 KB Output is correct
47 Correct 46 ms 2516 KB Output is correct
48 Correct 52 ms 4972 KB Output is correct
49 Correct 38 ms 4464 KB Output is correct
50 Correct 36 ms 4488 KB Output is correct
51 Correct 56 ms 5568 KB Output is correct
52 Correct 50 ms 5572 KB Output is correct
53 Correct 45 ms 5452 KB Output is correct
54 Correct 38 ms 5568 KB Output is correct
55 Correct 50 ms 5580 KB Output is correct
56 Correct 28 ms 3800 KB Output is correct
57 Correct 18 ms 1984 KB Output is correct
58 Correct 30 ms 3784 KB Output is correct
59 Correct 30 ms 3824 KB Output is correct
60 Correct 17 ms 2004 KB Output is correct
61 Correct 34 ms 3284 KB Output is correct
62 Correct 49 ms 5568 KB Output is correct
63 Correct 52 ms 5460 KB Output is correct
64 Correct 50 ms 5444 KB Output is correct
65 Correct 51 ms 5460 KB Output is correct
66 Correct 60 ms 5448 KB Output is correct
67 Correct 57 ms 5568 KB Output is correct
68 Correct 51 ms 5564 KB Output is correct
69 Correct 58 ms 5572 KB Output is correct
70 Correct 69 ms 5568 KB Output is correct
71 Correct 55 ms 5464 KB Output is correct
72 Correct 47 ms 5460 KB Output is correct
73 Correct 65 ms 5576 KB Output is correct