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Submission #612252

# Submission time Handle Problem Language Result Execution time Memory
612252 2022-07-29T12:02:42 Z Andyvanh1 Global Warming (CEOI18_glo) C++14
100 / 100
 167 ms 16368 KB 
#include <bits/stdc++.h>

using namespace std;

#define vt vector
#define pb push_back
#define all(x) x.begin(),x.end()
#define FORR1(x) for(int i = 0; i < (x); i++)
#define FORR2(j,x) for(int (j) = 0; (j) < (x); (j)++)
#define f first
#define s second

typedef vt<int> vi;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;

map<int,vi> mp;
map<int,int> dic;
int pp[10005];
int sz[10005];
int cst[10005];
int ans[10005][103];


int find(int x){
    return (x==pp[x] ? x : pp[x] = find(pp[x]));
}

void join(int a, int b){
    if(find(a)==find(b))return;
    int u = find(a), v = find(b);
    if(sz[u]>sz[v])swap(u,v);
    pp[u] = v;
    sz[v]+=sz[u];
}

int arr[200005];
int in2[200005];
int out2[200005];
int in1[200005];
int out1[200005];

void solve(){
    int n, x;
    cin>>n>>x;
    FORR1(n)cin>>arr[i];
    set<int,greater<>> st2;
    for(int i = n-1; i>=0; i--){
        auto it = st2.lower_bound(arr[i]);
        if(it == st2.end()){
            in2[i] = arr[i];
            out2[i] = -1;
            st2.insert(arr[i]);
        }else{
            in2[i] = arr[i];
            out2[i] = *it;
            st2.erase(it);
            st2.insert(arr[i]);
        }
    }
    set<int> st1;
    FORR1(n){
        auto it = st1.lower_bound(arr[i]);
        if(it == st1.end()){
            in1[i] = arr[i];
            out1[i] = -1;
            st1.insert(arr[i]);
        }else{
            in1[i] = arr[i];
            out1[i] = *it;
            st1.erase(it);
            st1.insert(arr[i]);
        }
    }
    int a = st1.size(), b = st2.size();
    vi cal1(a), cal2(b);
    FORR1(a)cal1[i] = -1;
    int att = 0;
    for(auto & e: st2){
        cal2[att] = e;
        att++;
    }
    int ans = b;
    int at1 = -1, at2 = b-1;
    FORR1(n){
        int l = 0, r = a;
        while(l!=r){
            int mid = (l+r)>>1;
            if(cal1[mid]==-1||(out1[i]!=-1&&out1[i]<cal1[mid])){
                r = mid;
            }else if(cal1[mid]==out1[i]){
                l = mid;
                r = mid;
            }else{
                l = mid+1;
            }
        }
        cal1[l] = in1[i];
        l = 0; r = b;
        while(l!=r){
            int mid = (l+r)>>1;
            if(cal2[mid]>in2[i]){
                l = mid+1;
            }else if(cal2[mid]<in2[i]){
                r = mid;
            }else{
                l = r = mid;
            }

        }
        cal2[l] = out2[i];
        if(cal2[at2]==-1){
            at2--;
        }
        if(at1==-1){

            if(cal1[0]-cal2[at2]<x){
                at1 = 0;
            }
        }else if(at2!=-1){

            if(cal1[at1]-cal2[at2]<x){
                if(at1!=a-1&&cal1[at1+1]!=-1&&cal1[at1+1]-cal2[at2]<x){
                    at1++;
                }
            }else{
                at2--;
                if(at2!=-1&&at1!=a-1&&cal1[at1+1]!=-1&&cal1[at1+1]-cal2[at2]<x){
                    at1++;
                }
            }
        }
        ans = max(ans, at1+at2+2);
        /*if(at1+at2+2==6){
            cout<<i<<'\n';
            cout<<at1<<' '<<at2<<'\n';
        }*/
    }
    ans = max(ans,(int)st1.size());
    cout<<ans<<'\n';


}


int main() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    solve();
    return 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 340 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 336 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 340 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 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 340 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 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 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 336 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 110 ms 4744 KB Output is correct
2 Correct 108 ms 4628 KB Output is correct
3 Correct 111 ms 4704 KB Output is correct
4 Correct 109 ms 4680 KB Output is correct
5 Correct 157 ms 14756 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 1736 KB Output is correct
2 Correct 28 ms 1648 KB Output is correct
3 Correct 29 ms 1740 KB Output is correct
4 Correct 33 ms 4028 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 39 ms 4108 KB Output is correct
7 Correct 21 ms 1652 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 2672 KB Output is correct
2 Correct 54 ms 2736 KB Output is correct
3 Correct 129 ms 4628 KB Output is correct
4 Correct 167 ms 14676 KB Output is correct
5 Correct 74 ms 7692 KB Output is correct
6 Correct 111 ms 14108 KB Output is correct
7 Correct 131 ms 14024 KB Output is correct
8 Correct 45 ms 2636 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 340 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 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 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 110 ms 4744 KB Output is correct
28 Correct 108 ms 4628 KB Output is correct
29 Correct 111 ms 4704 KB Output is correct
30 Correct 109 ms 4680 KB Output is correct
31 Correct 157 ms 14756 KB Output is correct
32 Correct 25 ms 1736 KB Output is correct
33 Correct 28 ms 1648 KB Output is correct
34 Correct 29 ms 1740 KB Output is correct
35 Correct 33 ms 4028 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 39 ms 4108 KB Output is correct
38 Correct 21 ms 1652 KB Output is correct
39 Correct 54 ms 2672 KB Output is correct
40 Correct 54 ms 2736 KB Output is correct
41 Correct 129 ms 4628 KB Output is correct
42 Correct 167 ms 14676 KB Output is correct
43 Correct 74 ms 7692 KB Output is correct
44 Correct 111 ms 14108 KB Output is correct
45 Correct 131 ms 14024 KB Output is correct
46 Correct 45 ms 2636 KB Output is correct
47 Correct 57 ms 3264 KB Output is correct
48 Correct 54 ms 3264 KB Output is correct
49 Correct 124 ms 6240 KB Output is correct
50 Correct 153 ms 15500 KB Output is correct
51 Correct 133 ms 14208 KB Output is correct
52 Correct 158 ms 15608 KB Output is correct
53 Correct 134 ms 15648 KB Output is correct
54 Correct 148 ms 16368 KB Output is correct
55 Correct 81 ms 6280 KB Output is correct