oj.uz

답안 #1006266

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1006266 2024-06-23T15:54:40 Z Unforgettablepl 수확 (JOI20_harvest) C++17
100 / 100
 438 ms 108884 KB 
#include <bits/stdc++.h>
using namespace std;


#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
typedef tree<pair<long long,long long>,null_type,less<>,rb_tree_tag,tree_order_statistics_node_update> orderedset;

#define int long long

const int INF = 1e18;

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n,m,l,c;
    cin >> n >> m >> l >> c;
    vector<int> employee(n+1);
    vector<int> apple(m);
    vector<pair<int,int>> adj(n+1);
    vector<vector<int>> revadj(n+1);
    for(int i=1;i<=n;i++)cin>>employee[i];
    for(int&i:apple)cin>>i;
    for(int i=1;i<=n;i++){
        int modded = c%l;
        int iter = 0;
        for(int jump=131072;jump;jump/=2){
            if(iter+jump>n)continue;
            if((l+employee[i]-employee[(n-iter-jump+i)%n +1])%l < modded)iter+=jump;
        }
        iter++;
        if(iter==n+1){
            adj[i] = {i,(c/l)*l + l};
            continue;
        }
        adj[i] = {(n-iter+i)%n +1,(c/l)*l + (l+employee[i]-employee[(n-iter+i)%n +1])%l};
        revadj[adj[i].first].emplace_back(i);
    }
    vector<int> depth(n+1);
    vector<bool> visited(n+1);
    vector<int> heads;
    function<void (int)> front_dfs = [&](int x){
        if(visited[x])return;
        visited[x]=true;
        front_dfs(adj[x].first);
        if(depth[adj[x].first]==0)heads.emplace_back(x);
        depth[x] = depth[adj[x].first]+adj[x].second;
    };
    for(int i=1;i<=n;i++)if(!visited[i])front_dfs(i);
    vector<vector<int>> apples(n+1);
    vector<vector<pair<int,int>>> queries(n+1);
    for(int&i:apple){
        int start = -1;
        if(i<employee[1])start = n;
        else {
            start = upper_bound(employee.begin()+1,employee.end(),i)-employee.begin()-1;
        }
        apples[start].emplace_back((l+i-employee[start])%l);
    }
    int q;
    cin >> q;
    vector<int> ans(q+1);
    for(int i=1;i<=q;i++){
        int v,t;
        cin >> v >> t;
        queries[v].emplace_back(t,i);
    }
    visited = vector<bool>(n+1);
    int uid = 0;
    function<orderedset(int)> calc_linear_dfs = [&](int x){
        // cout << x << endl;
        orderedset curr;
        if(visited[x])return curr;
        visited[x] = true;
        for(int&i:revadj[x]){
            auto t = calc_linear_dfs(i);
            if(curr.size()<t.size())curr.swap(t);
            for(auto j:t)curr.insert(j);
        }
        for(int&i:apples[x])curr.insert({i+depth[x],++uid});
        for(auto[t,idx]:queries[x]){
            ans[idx] = curr.order_of_key({t+depth[x],INF});
        }
        return curr;
    };
    for(int&i:heads){
        auto t = calc_linear_dfs(i);
        orderedset curr;
        int cycle_len = depth[adj[i].first];
        int offset = 0;
        for(auto [x,y]:t)curr.insert({(x-adj[i].second)%cycle_len,y});
        for(auto [x,y]:t)offset-=(x-adj[i].second)/cycle_len;
        function<void(int,int)> calc = [&](int x,int len){
            for(auto[t,idx]:queries[x]){
                t-=len;
                if(t<0)continue;
                ans[idx]+=curr.size()*(t/cycle_len);
                t%=cycle_len;
                ans[idx]+=curr.order_of_key({t,INF});
                ans[idx]+=offset;
            }
            if(x==i)return;
            calc(adj[x].first,len+adj[x].second);
        };
        calc(adj[i].first,adj[i].second);
    }
    for(int i=1;i<=q;i++)cout<<ans[i]<<'\n';
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 604 KB Output is correct
2 Correct 2 ms 860 KB Output is correct
3 Correct 3 ms 1372 KB Output is correct
4 Correct 4 ms 1372 KB Output is correct
5 Correct 3 ms 1884 KB Output is correct
6 Correct 3 ms 1740 KB Output is correct
7 Correct 3 ms 1884 KB Output is correct
8 Correct 3 ms 1116 KB Output is correct
9 Correct 3 ms 1116 KB Output is correct
10 Correct 3 ms 1116 KB Output is correct
11 Correct 3 ms 1116 KB Output is correct
12 Correct 3 ms 1884 KB Output is correct
13 Correct 3 ms 1884 KB Output is correct
14 Correct 4 ms 1372 KB Output is correct
15 Correct 4 ms 1628 KB Output is correct
16 Correct 4 ms 1652 KB Output is correct
17 Correct 4 ms 1628 KB Output is correct
18 Correct 3 ms 1576 KB Output is correct
19 Correct 3 ms 1628 KB Output is correct
20 Correct 3 ms 1628 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 9400 KB Output is correct
2 Correct 132 ms 34128 KB Output is correct
3 Correct 138 ms 36040 KB Output is correct
4 Correct 146 ms 36508 KB Output is correct
5 Correct 165 ms 81952 KB Output is correct
6 Correct 160 ms 88916 KB Output is correct
7 Correct 115 ms 37056 KB Output is correct
8 Correct 117 ms 37128 KB Output is correct
9 Correct 197 ms 90660 KB Output is correct
10 Correct 156 ms 88800 KB Output is correct
11 Correct 237 ms 89688 KB Output is correct
12 Correct 250 ms 89648 KB Output is correct
13 Correct 227 ms 89684 KB Output is correct
14 Correct 183 ms 87320 KB Output is correct
15 Correct 166 ms 67040 KB Output is correct
16 Correct 134 ms 65348 KB Output is correct
17 Correct 145 ms 65364 KB Output is correct
18 Correct 65 ms 24920 KB Output is correct
19 Correct 74 ms 25000 KB Output is correct
20 Correct 119 ms 40208 KB Output is correct

Subtask #3
75.0 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 604 KB Output is correct
2 Correct 2 ms 860 KB Output is correct
3 Correct 3 ms 1372 KB Output is correct
4 Correct 4 ms 1372 KB Output is correct
5 Correct 3 ms 1884 KB Output is correct
6 Correct 3 ms 1740 KB Output is correct
7 Correct 3 ms 1884 KB Output is correct
8 Correct 3 ms 1116 KB Output is correct
9 Correct 3 ms 1116 KB Output is correct
10 Correct 3 ms 1116 KB Output is correct
11 Correct 3 ms 1116 KB Output is correct
12 Correct 3 ms 1884 KB Output is correct
13 Correct 3 ms 1884 KB Output is correct
14 Correct 4 ms 1372 KB Output is correct
15 Correct 4 ms 1628 KB Output is correct
16 Correct 4 ms 1652 KB Output is correct
17 Correct 4 ms 1628 KB Output is correct
18 Correct 3 ms 1576 KB Output is correct
19 Correct 3 ms 1628 KB Output is correct
20 Correct 3 ms 1628 KB Output is correct
21 Correct 69 ms 9400 KB Output is correct
22 Correct 132 ms 34128 KB Output is correct
23 Correct 138 ms 36040 KB Output is correct
24 Correct 146 ms 36508 KB Output is correct
25 Correct 165 ms 81952 KB Output is correct
26 Correct 160 ms 88916 KB Output is correct
27 Correct 115 ms 37056 KB Output is correct
28 Correct 117 ms 37128 KB Output is correct
29 Correct 197 ms 90660 KB Output is correct
30 Correct 156 ms 88800 KB Output is correct
31 Correct 237 ms 89688 KB Output is correct
32 Correct 250 ms 89648 KB Output is correct
33 Correct 227 ms 89684 KB Output is correct
34 Correct 183 ms 87320 KB Output is correct
35 Correct 166 ms 67040 KB Output is correct
36 Correct 134 ms 65348 KB Output is correct
37 Correct 145 ms 65364 KB Output is correct
38 Correct 65 ms 24920 KB Output is correct
39 Correct 74 ms 25000 KB Output is correct
40 Correct 119 ms 40208 KB Output is correct
41 Correct 328 ms 69620 KB Output is correct
42 Correct 161 ms 47044 KB Output is correct
43 Correct 113 ms 40028 KB Output is correct
44 Correct 345 ms 69816 KB Output is correct
45 Correct 238 ms 105812 KB Output is correct
46 Correct 259 ms 106648 KB Output is correct
47 Correct 251 ms 108184 KB Output is correct
48 Correct 271 ms 105440 KB Output is correct
49 Correct 271 ms 105740 KB Output is correct
50 Correct 293 ms 67468 KB Output is correct
51 Correct 260 ms 66764 KB Output is correct
52 Correct 374 ms 107568 KB Output is correct
53 Correct 391 ms 108884 KB Output is correct
54 Correct 438 ms 107528 KB Output is correct
55 Correct 421 ms 106524 KB Output is correct
56 Correct 299 ms 88780 KB Output is correct
57 Correct 310 ms 89684 KB Output is correct
58 Correct 312 ms 91220 KB Output is correct
59 Correct 332 ms 87892 KB Output is correct
60 Correct 306 ms 88336 KB Output is correct
61 Correct 295 ms 88380 KB Output is correct
62 Correct 383 ms 80012 KB Output is correct
63 Correct 218 ms 51852 KB Output is correct
64 Correct 213 ms 51964 KB Output is correct
65 Correct 216 ms 52500 KB Output is correct
66 Correct 250 ms 51756 KB Output is correct
67 Correct 253 ms 51828 KB Output is correct
68 Correct 271 ms 51204 KB Output is correct
69 Correct 410 ms 72436 KB Output is correct
70 Correct 386 ms 68936 KB Output is correct
71 Correct 332 ms 70296 KB Output is correct
72 Correct 303 ms 70532 KB Output is correct