답안 #844674

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
844674	2023-09-05T16:34:15 Z	amine_aroua	Global Warming (CEOI18_glo)	C++17	100 / 100	52 ms	8796 KB

#include <bits/stdc++.h>
//#pragma GCC optimize("O3")
//#pragma GCC optimize("unroll-loops")
using namespace std;
#define int long long
#define vi vector<int>
#define vl vector<long long>
#define vii vector<pair<int,int>>
#define vll vector<pair<long long,long long>>
#define pb push_back
#define ll long long
#define ld long double
#define nl '\n'
#define boost ios::sync_with_stdio(false)
#define mp make_pair
#define se second
#define fi first
#define fore(i, y) for(int i = 0; i < y; i++)
#define forr(i,x,y) for(int i = x;i<=y;i++)
#define forn(i,y,x) for(int i = y; i >= x; i--)
#define all(v) v.begin(),v.end()
#define sz(v) (int)v.size()
#define clr(v,k) memset(v,k,sizeof(v))
#define rall(v) v.rbegin() , v.rend()
#define pii pair<int,int>
#define pll pair<ll , ll>

const ll MOD = 1e9 + 7;
const ll INF = 1e18 + 1;

ll gcd(ll a , ll b) {return b ? gcd(b , a % b) : a ;} // greatest common divisor (gcd)
ll lcm(ll a , ll b) {return a * (b / gcd(a , b));} // least common multiple (lcm)

// HERE IS THE SOLUTION
int n  , x;
signed main()
{
    boost;
    cin.tie(0);
    cout.tie(0);
//    freopen("io.txt" , "r" , stdin);
    cin>>n>>x;
    vi v(n);
    fore(i , n)
    {
        cin>>v[i];
    }
    vi dpA(n , INT_MAX);
    vi pref(n);
    fore(i , n)
    {
        int cur = v[i];
        int idx = lower_bound(all(dpA) , cur) - dpA.begin();
        dpA[idx] = cur;
        pref[i] = idx + 1;
    }
    int ans = pref[n - 1];
    vi dpB(n , INT_MAX);
    forn(i , n - 1 , 0)
    {
        int cur = v[i];
        int idx = lower_bound(all(dpB) , -cur + x) - dpB.begin();
        ans = max(ans , idx + pref[i]);
        int pos = lower_bound(all(dpB) , -cur) - dpB.begin();
        dpB[pos] = -cur;
    }
    cout<<ans<<nl;
}

Subtask #1
5.0 / 5.0

#	결과	메모리	Grader output
1	Correct	344 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct
6	Correct	348 KB	Output is correct
7	Correct	348 KB	Output is correct
8	Correct	348 KB	Output is correct
9	Correct	348 KB	Output is correct
10	Correct	348 KB	Output is correct
11	Correct	348 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	344 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct

Subtask #3
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	344 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	0 ms	452 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	49 ms	6952 KB	Output is correct
2	Correct	48 ms	6708 KB	Output is correct
3	Correct	52 ms	6692 KB	Output is correct
4	Correct	48 ms	6712 KB	Output is correct
5	Correct	34 ms	6904 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	1884 KB	Output is correct
2	Correct	11 ms	1884 KB	Output is correct
3	Correct	11 ms	2140 KB	Output is correct
4	Correct	10 ms	2036 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	9 ms	1872 KB	Output is correct
7	Correct	9 ms	1884 KB	Output is correct

Subtask #6
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	21 ms	3420 KB	Output is correct
2	Correct	20 ms	3420 KB	Output is correct
3	Correct	42 ms	6708 KB	Output is correct
4	Correct	34 ms	6484 KB	Output is correct
5	Correct	18 ms	3420 KB	Output is correct
6	Correct	28 ms	6308 KB	Output is correct
7	Correct	31 ms	6236 KB	Output is correct
8	Correct	17 ms	3584 KB	Output is correct

Subtask #7
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	344 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	0 ms	452 KB	Output is correct
27	Correct	49 ms	6952 KB	Output is correct
28	Correct	48 ms	6708 KB	Output is correct
29	Correct	52 ms	6692 KB	Output is correct
30	Correct	48 ms	6712 KB	Output is correct
31	Correct	34 ms	6904 KB	Output is correct
32	Correct	11 ms	1884 KB	Output is correct
33	Correct	11 ms	1884 KB	Output is correct
34	Correct	11 ms	2140 KB	Output is correct
35	Correct	10 ms	2036 KB	Output is correct
36	Correct	0 ms	348 KB	Output is correct
37	Correct	9 ms	1872 KB	Output is correct
38	Correct	9 ms	1884 KB	Output is correct
39	Correct	21 ms	3420 KB	Output is correct
40	Correct	20 ms	3420 KB	Output is correct
41	Correct	42 ms	6708 KB	Output is correct
42	Correct	34 ms	6484 KB	Output is correct
43	Correct	18 ms	3420 KB	Output is correct
44	Correct	28 ms	6308 KB	Output is correct
45	Correct	31 ms	6236 KB	Output is correct
46	Correct	17 ms	3584 KB	Output is correct
47	Correct	26 ms	4432 KB	Output is correct
48	Correct	24 ms	4444 KB	Output is correct
49	Correct	49 ms	8796 KB	Output is correct
50	Correct	36 ms	7772 KB	Output is correct
51	Correct	29 ms	5980 KB	Output is correct
52	Correct	36 ms	7756 KB	Output is correct
53	Correct	33 ms	8020 KB	Output is correct
54	Correct	33 ms	8540 KB	Output is correct
55	Correct	39 ms	8636 KB	Output is correct

답안 #844674

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 10.0 / 10.0

Subtask #3 13.0 / 13.0

Subtask #4 10.0 / 10.0

Subtask #5 20.0 / 20.0

Subtask #6 17.0 / 17.0

Subtask #7 25.0 / 25.0

Subtask #1
5.0 / 5.0

Subtask #2
10.0 / 10.0

Subtask #3
13.0 / 13.0

Subtask #4
10.0 / 10.0

Subtask #5
20.0 / 20.0

Subtask #6
17.0 / 17.0

Subtask #7
25.0 / 25.0