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Submission #1088677

# Submission time Handle Problem Language Result Execution time Memory
1088677 2024-09-14T18:40:27 Z alexander707070 New Home (APIO18_new_home) C++14
47 / 100
 5000 ms 95592 KB 
#include<bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")

#define MAXN 1000007
using namespace std;

const int bucket_sz=700,inf=1e9+7;

int n,k,q,x,t,l,r,pt,ans[MAXN];

struct event{
    int x,type,tim,id;

    inline friend bool operator < (event fr,event sc){
        if(fr.tim!=sc.tim)return fr.tim<sc.tim;
        else return fr.type<sc.type;
    }
}s[MAXN];

bool cmp(event fr,event sc){
    return fr.x<sc.x;
}

multiset<int> stores[MAXN];
set< pair<int,int> > ss;
vector< pair<int,int> > st,ts;

vector<event> z,ask;

int sp[MAXN],tim;
vector<int> poss;
priority_queue<int> pq;

int mins(){
    pair<int,int> p=*ss.begin();
    return p.first;
}

int maxs(){
    pair<int,int> p=*ss.rbegin();
    return p.first;
}

int calc(int x,int t){
    if(stores[t].empty())return inf;

    auto it=stores[t].lower_bound(x);

    int p1=-inf,p2=-inf;

    if(it!=stores[t].end())p1=*it;
    if(it!=stores[t].begin()){
        it--; p2=*it;
    }

    return min(abs(x-p1),abs(x-p2));
}

void solve(){

    tim++; ask.clear();
    for(event e:z){
        if(e.type==0 or e.type==2){
            sp[e.id]=tim;
        }else{
            ask.push_back(e);
        }
    }

    poss.clear(); st.clear(); ts.clear();
    for(int i=1;i<=k;i++){
        if(sp[i]==tim)poss.push_back(i);
        else{
            vector<int> w;
            for(int f:stores[i]){
                w.push_back(f);
            }

            if(w.empty()){
                st.push_back({0,inf});
                ts.push_back({inf,2*inf});
                break;
            }

            st.push_back({0,w[0]});
            for(int f=0;f<w.size()-1;f++){
                int pos=(w[f]+w[f+1])/2+(w[f]+w[f+1])%2;
                int val=(w[f+1]-w[f])/2;

                st.push_back({pos,pos+val});
                ts.push_back({pos-(w[f]+w[f+1])%2,val-(pos-(w[f]+w[f+1])%2)});
            }
            ts.push_back({inf,-w.back()});
        }
    }

    if(!st.empty()){
        sort(st.begin(),st.end());
        sort(ts.begin(),ts.end());
        sort(ask.begin(),ask.end(),cmp);

        int pt=0;
        while(!pq.empty())pq.pop();

        for(int i=0;i<ask.size();i++){
            while(pt<st.size() and st[pt].first<=ask[i].x){
                pq.push(st[pt].second);
                pt++;
            }

            ans[ask[i].id]=max(ans[ask[i].id],pq.top()-ask[i].x);
        }

        pt=ts.size()-1;
        while(!pq.empty())pq.pop();

        for(int i=ask.size()-1;i>=0;i--){
            while(pt>=0 and ts[pt].first>=ask[i].x){
                pq.push(ts[pt].second);
                pt--;
            }

            ans[ask[i].id]=max(ans[ask[i].id],pq.top()+ask[i].x);
        }
    }

    for(event e:z){
        if(e.type==0){
            stores[e.id].insert(e.x);
        }else if(e.type==2){
            stores[e.id].erase(stores[e.id].find(e.x));
        }else{
            for(int i:poss){
                ans[e.id]=max(ans[e.id],calc(e.x,i));
            }
        }
    }
}

int main(){

    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin>>n>>k>>q;
    for(int i=1;i<=n;i++){
        cin>>x>>t>>l>>r;

        pt++; s[pt]={x,0,l,t};
        pt++; s[pt]={x,2,r,t};
    }

    for(int i=1;i<=q;i++){
        cin>>x>>t;

        pt++; s[pt]={x,1,t,i};
    }

    sort(s+1,s+pt+1);

    for(int i=1;i<=pt;i++){
        z.push_back(s[i]);

        if(z.size()==bucket_sz){
            solve(); z.clear();
        }
    }

    if(!z.empty()){
        solve(); z.clear();
    }

    for(int i=1;i<=q;i++){
        if(ans[i]>200000000)cout<<"-1\n";
        else cout<<ans[i]<<"\n";
    }

    return 0;
}

/*
4 2 4
3 1 1 10
9 2 2 4
7 2 5 7
4 1 8 10
5 3
5 6
5 9
1 10

*/

Compilation message

new_home.cpp: In function 'void solve()':
new_home.cpp:87:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   87 |             for(int f=0;f<w.size()-1;f++){
      |                         ~^~~~~~~~~~~
new_home.cpp:106:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<event>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  106 |         for(int i=0;i<ask.size();i++){
      |                     ~^~~~~~~~~~~
new_home.cpp:107:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  107 |             while(pt<st.size() and st[pt].first<=ask[i].x){
      |                   ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47452 KB Output is correct
2 Correct 19 ms 47452 KB Output is correct
3 Correct 19 ms 47448 KB Output is correct
4 Correct 19 ms 47700 KB Output is correct
5 Correct 20 ms 47456 KB Output is correct
6 Correct 19 ms 47472 KB Output is correct
7 Correct 21 ms 47452 KB Output is correct
8 Correct 19 ms 47452 KB Output is correct
9 Correct 21 ms 47452 KB Output is correct
10 Correct 25 ms 47448 KB Output is correct
11 Correct 19 ms 47452 KB Output is correct
12 Correct 21 ms 47452 KB Output is correct
13 Correct 22 ms 47452 KB Output is correct
14 Correct 20 ms 47452 KB Output is correct
15 Correct 21 ms 47452 KB Output is correct
16 Correct 20 ms 47452 KB Output is correct
17 Correct 20 ms 47448 KB Output is correct
18 Correct 21 ms 47452 KB Output is correct
19 Correct 21 ms 47452 KB Output is correct
20 Correct 20 ms 47324 KB Output is correct
21 Correct 21 ms 47452 KB Output is correct
22 Correct 23 ms 47452 KB Output is correct
23 Correct 21 ms 47452 KB Output is correct
24 Correct 20 ms 47452 KB Output is correct
25 Correct 21 ms 47452 KB Output is correct
26 Correct 20 ms 47452 KB Output is correct
27 Correct 23 ms 47448 KB Output is correct
28 Correct 22 ms 47396 KB Output is correct
29 Correct 20 ms 47448 KB Output is correct
30 Correct 21 ms 47452 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47452 KB Output is correct
2 Correct 19 ms 47452 KB Output is correct
3 Correct 19 ms 47448 KB Output is correct
4 Correct 19 ms 47700 KB Output is correct
5 Correct 20 ms 47456 KB Output is correct
6 Correct 19 ms 47472 KB Output is correct
7 Correct 21 ms 47452 KB Output is correct
8 Correct 19 ms 47452 KB Output is correct
9 Correct 21 ms 47452 KB Output is correct
10 Correct 25 ms 47448 KB Output is correct
11 Correct 19 ms 47452 KB Output is correct
12 Correct 21 ms 47452 KB Output is correct
13 Correct 22 ms 47452 KB Output is correct
14 Correct 20 ms 47452 KB Output is correct
15 Correct 21 ms 47452 KB Output is correct
16 Correct 20 ms 47452 KB Output is correct
17 Correct 20 ms 47448 KB Output is correct
18 Correct 21 ms 47452 KB Output is correct
19 Correct 21 ms 47452 KB Output is correct
20 Correct 20 ms 47324 KB Output is correct
21 Correct 21 ms 47452 KB Output is correct
22 Correct 23 ms 47452 KB Output is correct
23 Correct 21 ms 47452 KB Output is correct
24 Correct 20 ms 47452 KB Output is correct
25 Correct 21 ms 47452 KB Output is correct
26 Correct 20 ms 47452 KB Output is correct
27 Correct 23 ms 47448 KB Output is correct
28 Correct 22 ms 47396 KB Output is correct
29 Correct 20 ms 47448 KB Output is correct
30 Correct 21 ms 47452 KB Output is correct
31 Correct 1852 ms 56904 KB Output is correct
32 Correct 238 ms 53064 KB Output is correct
33 Correct 156 ms 54352 KB Output is correct
34 Correct 1203 ms 54724 KB Output is correct
35 Correct 819 ms 56384 KB Output is correct
36 Correct 175 ms 56148 KB Output is correct
37 Correct 130 ms 53568 KB Output is correct
38 Correct 90 ms 53588 KB Output is correct
39 Correct 79 ms 53216 KB Output is correct
40 Correct 79 ms 53328 KB Output is correct
41 Correct 205 ms 53584 KB Output is correct
42 Correct 147 ms 53332 KB Output is correct
43 Correct 409 ms 57404 KB Output is correct
44 Correct 179 ms 53588 KB Output is correct
45 Correct 124 ms 53832 KB Output is correct
46 Correct 75 ms 53584 KB Output is correct
47 Correct 68 ms 53016 KB Output is correct
48 Correct 64 ms 53076 KB Output is correct
49 Correct 78 ms 53328 KB Output is correct
50 Correct 167 ms 53324 KB Output is correct
51 Correct 72 ms 53224 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5047 ms 95592 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5049 ms 85532 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47452 KB Output is correct
2 Correct 19 ms 47452 KB Output is correct
3 Correct 19 ms 47448 KB Output is correct
4 Correct 19 ms 47700 KB Output is correct
5 Correct 20 ms 47456 KB Output is correct
6 Correct 19 ms 47472 KB Output is correct
7 Correct 21 ms 47452 KB Output is correct
8 Correct 19 ms 47452 KB Output is correct
9 Correct 21 ms 47452 KB Output is correct
10 Correct 25 ms 47448 KB Output is correct
11 Correct 19 ms 47452 KB Output is correct
12 Correct 21 ms 47452 KB Output is correct
13 Correct 22 ms 47452 KB Output is correct
14 Correct 20 ms 47452 KB Output is correct
15 Correct 21 ms 47452 KB Output is correct
16 Correct 20 ms 47452 KB Output is correct
17 Correct 20 ms 47448 KB Output is correct
18 Correct 21 ms 47452 KB Output is correct
19 Correct 21 ms 47452 KB Output is correct
20 Correct 20 ms 47324 KB Output is correct
21 Correct 21 ms 47452 KB Output is correct
22 Correct 23 ms 47452 KB Output is correct
23 Correct 21 ms 47452 KB Output is correct
24 Correct 20 ms 47452 KB Output is correct
25 Correct 21 ms 47452 KB Output is correct
26 Correct 20 ms 47452 KB Output is correct
27 Correct 23 ms 47448 KB Output is correct
28 Correct 22 ms 47396 KB Output is correct
29 Correct 20 ms 47448 KB Output is correct
30 Correct 21 ms 47452 KB Output is correct
31 Correct 1852 ms 56904 KB Output is correct
32 Correct 238 ms 53064 KB Output is correct
33 Correct 156 ms 54352 KB Output is correct
34 Correct 1203 ms 54724 KB Output is correct
35 Correct 819 ms 56384 KB Output is correct
36 Correct 175 ms 56148 KB Output is correct
37 Correct 130 ms 53568 KB Output is correct
38 Correct 90 ms 53588 KB Output is correct
39 Correct 79 ms 53216 KB Output is correct
40 Correct 79 ms 53328 KB Output is correct
41 Correct 205 ms 53584 KB Output is correct
42 Correct 147 ms 53332 KB Output is correct
43 Correct 409 ms 57404 KB Output is correct
44 Correct 179 ms 53588 KB Output is correct
45 Correct 124 ms 53832 KB Output is correct
46 Correct 75 ms 53584 KB Output is correct
47 Correct 68 ms 53016 KB Output is correct
48 Correct 64 ms 53076 KB Output is correct
49 Correct 78 ms 53328 KB Output is correct
50 Correct 167 ms 53324 KB Output is correct
51 Correct 72 ms 53224 KB Output is correct
52 Correct 93 ms 57888 KB Output is correct
53 Correct 71 ms 54728 KB Output is correct
54 Correct 107 ms 57592 KB Output is correct
55 Correct 1200 ms 55444 KB Output is correct
56 Correct 1501 ms 56016 KB Output is correct
57 Correct 551 ms 54256 KB Output is correct
58 Correct 787 ms 55120 KB Output is correct
59 Correct 984 ms 55832 KB Output is correct
60 Correct 381 ms 54184 KB Output is correct
61 Correct 520 ms 57796 KB Output is correct
62 Correct 582 ms 58068 KB Output is correct
63 Correct 1425 ms 57040 KB Output is correct
64 Correct 1824 ms 56284 KB Output is correct
65 Correct 1066 ms 54608 KB Output is correct
66 Correct 322 ms 53584 KB Output is correct
67 Correct 481 ms 52752 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47452 KB Output is correct
2 Correct 19 ms 47452 KB Output is correct
3 Correct 19 ms 47448 KB Output is correct
4 Correct 19 ms 47700 KB Output is correct
5 Correct 20 ms 47456 KB Output is correct
6 Correct 19 ms 47472 KB Output is correct
7 Correct 21 ms 47452 KB Output is correct
8 Correct 19 ms 47452 KB Output is correct
9 Correct 21 ms 47452 KB Output is correct
10 Correct 25 ms 47448 KB Output is correct
11 Correct 19 ms 47452 KB Output is correct
12 Correct 21 ms 47452 KB Output is correct
13 Correct 22 ms 47452 KB Output is correct
14 Correct 20 ms 47452 KB Output is correct
15 Correct 21 ms 47452 KB Output is correct
16 Correct 20 ms 47452 KB Output is correct
17 Correct 20 ms 47448 KB Output is correct
18 Correct 21 ms 47452 KB Output is correct
19 Correct 21 ms 47452 KB Output is correct
20 Correct 20 ms 47324 KB Output is correct
21 Correct 21 ms 47452 KB Output is correct
22 Correct 23 ms 47452 KB Output is correct
23 Correct 21 ms 47452 KB Output is correct
24 Correct 20 ms 47452 KB Output is correct
25 Correct 21 ms 47452 KB Output is correct
26 Correct 20 ms 47452 KB Output is correct
27 Correct 23 ms 47448 KB Output is correct
28 Correct 22 ms 47396 KB Output is correct
29 Correct 20 ms 47448 KB Output is correct
30 Correct 21 ms 47452 KB Output is correct
31 Correct 1852 ms 56904 KB Output is correct
32 Correct 238 ms 53064 KB Output is correct
33 Correct 156 ms 54352 KB Output is correct
34 Correct 1203 ms 54724 KB Output is correct
35 Correct 819 ms 56384 KB Output is correct
36 Correct 175 ms 56148 KB Output is correct
37 Correct 130 ms 53568 KB Output is correct
38 Correct 90 ms 53588 KB Output is correct
39 Correct 79 ms 53216 KB Output is correct
40 Correct 79 ms 53328 KB Output is correct
41 Correct 205 ms 53584 KB Output is correct
42 Correct 147 ms 53332 KB Output is correct
43 Correct 409 ms 57404 KB Output is correct
44 Correct 179 ms 53588 KB Output is correct
45 Correct 124 ms 53832 KB Output is correct
46 Correct 75 ms 53584 KB Output is correct
47 Correct 68 ms 53016 KB Output is correct
48 Correct 64 ms 53076 KB Output is correct
49 Correct 78 ms 53328 KB Output is correct
50 Correct 167 ms 53324 KB Output is correct
51 Correct 72 ms 53224 KB Output is correct
52 Execution timed out 5047 ms 95592 KB Time limit exceeded
53 Halted 0 ms 0 KB -