oj.uz

Submission #675215

# Submission time Handle Problem Language Result Execution time Memory
675215 2022-12-27T03:01:29 Z Cookie Global Warming (CEOI18_glo) C++14
100 / 100
 360 ms 21164 KB 
#include<bits/stdc++.h>
 
using namespace std;
#include<fstream>
 
#define ll long long
#define vt vector
#define pb push_back
#define fi first
#define se second
#define forr(i, a, b) for(int i = a; i < b; i++)
#define dorr(i, a, b) for(int i = a; i >= b; i--)
typedef unsigned long long ull;
#define pii pair<int, int>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
const ll mod=  1e9 + 7;
const int mxk = 1e3, sq = 750, mxn = 2e5;
const ll inf = -1e18;
int n, x;
int d[mxn + 1][4];
struct BIT{
    int bit[mxn * 3 + 1];
    void upd(int p, int v){
        while(p <= mxn * 3){
            bit[p] = max(bit[p], v);
            p += p & (-p);
        }
    }
    int get(int p){
        int ans = 0;
        while(p){
            ans = max(ans, bit[p]);
            p -= p & (-p);
        }
        return(ans);
    }
};
BIT bit[4];
vt<ll>b;
ll a[mxn + 1];
int find(ll x){
    return(lower_bound(b.begin(), b.end(), x) - b.begin() + 1);
}
 
signed main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n >> x;
    for(int i = 1; i <= n; i++){
        cin >> a[i]; b.pb(a[i] + x); b.pb(a[i] - x); b.pb(a[i]);
    }
    int ans = 0;
    sort(b.begin(), b.end());
    for(int i = 1; i <= n;  i++){
        d[i][0] = bit[0].get(find(a[i]) - 1) + 1; d[i][1] = max(bit[1].get(find(a[i] + x) - 1), bit[0].get(find(a[i] + x) - 1)) + 1; 
        d[i][2] = max(bit[2].get(find(a[i] - x) - 1), bit[0].get(find(a[i] - x) - 1)) + 1; 
        d[i][3] = max({bit[2].get(find(a[i]) - 1), bit[1].get(find(a[i]) - 1), bit[3].get(find(a[i]) - 1)}) + 1;
        bit[0].upd(find(a[i]), d[i][0]); bit[1].upd(find(a[i] + x), d[i][1]); bit[2].upd(find(a[i] - x), d[i][2]);
        bit[3].upd(find(a[i]), d[i][3]);
        ans = max({ans, d[i][0], d[i][1], d[i][2], d[i][3]});
    }
    cout << ans;
    return(0);
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 0 ms 468 KB Output is correct
3 Correct 0 ms 468 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 0 ms 468 KB Output is correct
6 Correct 0 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 0 ms 468 KB Output is correct
9 Correct 0 ms 468 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 0 ms 468 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 0 ms 468 KB Output is correct
3 Correct 0 ms 468 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 0 ms 468 KB Output is correct
6 Correct 0 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 0 ms 468 KB Output is correct
9 Correct 0 ms 468 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 0 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 0 ms 440 KB Output is correct
18 Correct 1 ms 468 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 0 ms 468 KB Output is correct
3 Correct 0 ms 468 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 0 ms 468 KB Output is correct
6 Correct 0 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 0 ms 468 KB Output is correct
9 Correct 0 ms 468 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 0 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 0 ms 440 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 2 ms 596 KB Output is correct
20 Correct 1 ms 596 KB Output is correct
21 Correct 1 ms 596 KB Output is correct
22 Correct 1 ms 596 KB Output is correct
23 Correct 1 ms 596 KB Output is correct
24 Correct 1 ms 596 KB Output is correct
25 Correct 1 ms 596 KB Output is correct
26 Correct 1 ms 596 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 347 ms 19204 KB Output is correct
2 Correct 326 ms 21152 KB Output is correct
3 Correct 308 ms 21148 KB Output is correct
4 Correct 326 ms 21076 KB Output is correct
5 Correct 127 ms 15964 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 62 ms 5292 KB Output is correct
2 Correct 60 ms 5248 KB Output is correct
3 Correct 63 ms 5256 KB Output is correct
4 Correct 33 ms 4336 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 39 ms 5224 KB Output is correct
7 Correct 54 ms 5248 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 143 ms 6760 KB Output is correct
2 Correct 160 ms 6752 KB Output is correct
3 Correct 360 ms 13796 KB Output is correct
4 Correct 149 ms 12844 KB Output is correct
5 Correct 87 ms 7372 KB Output is correct
6 Correct 154 ms 13624 KB Output is correct
7 Correct 158 ms 14216 KB Output is correct
8 Correct 115 ms 7700 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 0 ms 468 KB Output is correct
3 Correct 0 ms 468 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 0 ms 468 KB Output is correct
6 Correct 0 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 0 ms 468 KB Output is correct
9 Correct 0 ms 468 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 0 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 0 ms 440 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 2 ms 596 KB Output is correct
20 Correct 1 ms 596 KB Output is correct
21 Correct 1 ms 596 KB Output is correct
22 Correct 1 ms 596 KB Output is correct
23 Correct 1 ms 596 KB Output is correct
24 Correct 1 ms 596 KB Output is correct
25 Correct 1 ms 596 KB Output is correct
26 Correct 1 ms 596 KB Output is correct
27 Correct 347 ms 19204 KB Output is correct
28 Correct 326 ms 21152 KB Output is correct
29 Correct 308 ms 21148 KB Output is correct
30 Correct 326 ms 21076 KB Output is correct
31 Correct 127 ms 15964 KB Output is correct
32 Correct 62 ms 5292 KB Output is correct
33 Correct 60 ms 5248 KB Output is correct
34 Correct 63 ms 5256 KB Output is correct
35 Correct 33 ms 4336 KB Output is correct
36 Correct 1 ms 468 KB Output is correct
37 Correct 39 ms 5224 KB Output is correct
38 Correct 54 ms 5248 KB Output is correct
39 Correct 143 ms 6760 KB Output is correct
40 Correct 160 ms 6752 KB Output is correct
41 Correct 360 ms 13796 KB Output is correct
42 Correct 149 ms 12844 KB Output is correct
43 Correct 87 ms 7372 KB Output is correct
44 Correct 154 ms 13624 KB Output is correct
45 Correct 158 ms 14216 KB Output is correct
46 Correct 115 ms 7700 KB Output is correct
47 Correct 138 ms 10832 KB Output is correct
48 Correct 150 ms 10840 KB Output is correct
49 Correct 316 ms 21064 KB Output is correct
50 Correct 141 ms 15920 KB Output is correct
51 Correct 127 ms 12672 KB Output is correct
52 Correct 192 ms 20480 KB Output is correct
53 Correct 161 ms 14252 KB Output is correct
54 Correct 170 ms 14908 KB Output is correct
55 Correct 229 ms 21164 KB Output is correct