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Submission #815164

# Submission time Handle Problem Language Result Execution time Memory
815164 2023-08-08T12:53:17 Z winthemcut3 Global Warming (CEOI18_glo) C++14
100 / 100
 124 ms 8688 KB 
#include <bits/stdc++.h>
#define FastIO ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define ll long long
#define PB push_back
#define ALL(v) (v).begin(), (v).end()
#define FOR(i, a, b) for (int i = (a), _b = (b); i <= _b; i++)
#define FORD(i, b, a) for (int i = (b), _a = (a); i >= _a; i--)
#define fi   first
#define se   second
#define BIT(x, i) (((x) >> (i)) & 1)
using namespace std;

/** END OF TEMPLATE **/

const int mxN = 2e5 + 5;
int n, d;
struct fenwick{
    vector<int> bit;
    int sz;
    fenwick(int t) : sz(t), bit(t+1, 0) {}
    void update(int id, int val) {
        for(; id <= sz; id += id&-id)
            bit[id] = max(bit[id], val);
    }
    int get(int id) {
        int res = 0;
        for(; id > 0; id -= id&-id)
            res = max(res, bit[id]);
        return res;
    }
};
int a[mxN], b[mxN];
int main()
{
    FastIO;
    //freopen("test.inp", "r", stdin);
    //freopen("test.out", "w", stdout);
    cin >> n >> d;
    vector<int> t;
    FOR(i, 1, n) {
        cin >> a[i];
        b[i] = a[i] + d;
        t.PB(a[i]); t.PB(b[i]);
    }
    sort(ALL(t)); t.erase(unique(ALL(t)), t.end());
    FOR(i, 1, n) {
        a[i] = lower_bound(ALL(t), a[i]) - t.begin() + 1;
        b[i] = lower_bound(ALL(t), b[i]) - t.begin() + 1;
    }
    fenwick T1(t.size()+1);
    fenwick T2(t.size()+2);
    int res = 0;
    FOR(i, 1, n) {
        int r1 = T1.get(a[i]-1) + 1;
        int r2 = max(T1.get(b[i]-1), T2.get(a[i]-1)) + 1;
        T1.update(a[i], r1); T2.update(a[i], r2);
        res = max(res, max(r1, r2));
       // cerr << r1 << ' ' << r2 << '\n';
    }
    cout << res;
    return 0;
}

/*

*/

Compilation message

glo.cpp: In constructor 'fenwick::fenwick(int)':
glo.cpp:19:9: warning: 'fenwick::sz' will be initialized after [-Wreorder]
   19 |     int sz;
      |         ^~
glo.cpp:18:17: warning:   'std::vector<int> fenwick::bit' [-Wreorder]
   18 |     vector<int> bit;
      |                 ^~~
glo.cpp:20:5: warning:   when initialized here [-Wreorder]
   20 |     fenwick(int t) : sz(t), bit(t+1, 0) {}
      |     ^~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 332 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 324 KB Output is correct
14 Correct 0 ms 328 KB Output is correct
15 Correct 0 ms 324 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 328 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 324 KB Output is correct
14 Correct 0 ms 328 KB Output is correct
15 Correct 0 ms 324 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 328 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 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

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 99 ms 6008 KB Output is correct
2 Correct 97 ms 6924 KB Output is correct
3 Correct 95 ms 6916 KB Output is correct
4 Correct 103 ms 6920 KB Output is correct
5 Correct 46 ms 5392 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 2444 KB Output is correct
2 Correct 23 ms 2516 KB Output is correct
3 Correct 23 ms 2440 KB Output is correct
4 Correct 12 ms 1820 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 11 ms 1752 KB Output is correct
7 Correct 20 ms 2420 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 4524 KB Output is correct
2 Correct 51 ms 4568 KB Output is correct
3 Correct 124 ms 8584 KB Output is correct
4 Correct 57 ms 6152 KB Output is correct
5 Correct 39 ms 4184 KB Output is correct
6 Correct 53 ms 7584 KB Output is correct
7 Correct 57 ms 8260 KB Output is correct
8 Correct 41 ms 4568 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 324 KB Output is correct
14 Correct 0 ms 328 KB Output is correct
15 Correct 0 ms 324 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 328 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 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 99 ms 6008 KB Output is correct
28 Correct 97 ms 6924 KB Output is correct
29 Correct 95 ms 6916 KB Output is correct
30 Correct 103 ms 6920 KB Output is correct
31 Correct 46 ms 5392 KB Output is correct
32 Correct 23 ms 2444 KB Output is correct
33 Correct 23 ms 2516 KB Output is correct
34 Correct 23 ms 2440 KB Output is correct
35 Correct 12 ms 1820 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 11 ms 1752 KB Output is correct
38 Correct 20 ms 2420 KB Output is correct
39 Correct 51 ms 4524 KB Output is correct
40 Correct 51 ms 4568 KB Output is correct
41 Correct 124 ms 8584 KB Output is correct
42 Correct 57 ms 6152 KB Output is correct
43 Correct 39 ms 4184 KB Output is correct
44 Correct 53 ms 7584 KB Output is correct
45 Correct 57 ms 8260 KB Output is correct
46 Correct 41 ms 4568 KB Output is correct
47 Correct 51 ms 4564 KB Output is correct
48 Correct 55 ms 4532 KB Output is correct
49 Correct 105 ms 8584 KB Output is correct
50 Correct 50 ms 6160 KB Output is correct
51 Correct 41 ms 4712 KB Output is correct
52 Correct 55 ms 6256 KB Output is correct
53 Correct 55 ms 7916 KB Output is correct
54 Correct 64 ms 8688 KB Output is correct
55 Correct 87 ms 8160 KB Output is correct