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Submission #1107595

# Submission time Handle Problem Language Result Execution time Memory
1107595 2024-11-01T16:30:05 Z Bananabread Harvest (JOI20_harvest) C++17
100 / 100
 303 ms 120024 KB 
#include<bits/stdc++.h>
#define ll long long
#define ntr "\n"
#define mod (ll)(1e9+7)
#define taskname "temp"
#define frep freopen(taskname".inp","r",stdin); freopen(taskname".out","w",stdout);
using namespace std;
ll a[200001],b[200001];
ll n,m,l,c,q;
vector<pair<ll,ll>> adj[400001],adjrev[400001];
ll vis[400001];
ll dist[200001];
ll distrev[400001];
ll pos[200001];
ll sz[400001];
ll euler[400001];
ll fenwick[200001];
ll line[200001];
ll ans[200001];
vector<array<ll,3>> sweep;
ll ones[200001];
ll tin;
ll ord;
ll cnt;
vector<vector<pair<ll,ll>>> compart;
vector<ll> st,ed;
vector<ll> len;
ll num[400001];
ll insub[400001];
bool inloop[400001];
ll root;
void update(ll x,ll val){
    for(;x<=n+m;x+=x&-x){
        insub[x]+=val;
    }
}
ll query(ll x){
    ll s=0;
    for(;x>0;x-=x&-x){
        s+=insub[x];
    }
    return s;
}
void upd(ll x,ll val,ll type){
    if(type){
        for(;x<=m;x+=x&-x){
            fenwick[x]+=val;
        }
    }
    else{
        for(;x<=m;x+=x&-x){
            ones[x]+=val;
        }
    }
}
ll get(ll x,ll type){
    ll s=0;
    for(;x;x-=x&-x){
        if(type) s+=fenwick[x];
        else s+=ones[x];
    }
    return s;
}
void dfs(ll u){
    if(root) return ;
    if(vis[u]){
        root=u;
        return ;
    }
    vis[u]=1;
    for(auto [v,w]:adj[u]){
        dfs(v);
    }
}
void dfs1(ll u=root,ll d=0,ll par=0){
    distrev[u]=d;
    vis[u]=1;
    sz[u]=1;
    euler[u]=++tin;
    num[u]=cnt;
    if(u>n){
        compart[cnt].push_back({d%len[cnt],u-n});
        line[u-n]=d/len[cnt];
    }
    for(auto [v,w]:adjrev[u]){
        if(v==root) continue;
        dfs1(v,d+w,u);
        sz[u]+=sz[v];
    }
}
int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    //frep;
    cin>>n>>m>>l>>c;
    for(int i=1;i<=n;i++) cin>>a[i];
    for(int i=1;i<=m;i++) cin>>b[i];
    for(int i=1;i<=n;i++){
        ll t=((a[i]-c)%l+l)%l;
        ll pos=upper_bound(a+1,a+n+1,t)-a-1;
        if(pos==0) pos=n;
        ll v=((a[i]-a[pos])%l+l)%l;
        ll cost=(c-v+l-1)/l*l+v;
        adj[i].push_back({pos,cost});
        adjrev[pos].push_back({i,cost});
    }
    for(int i=1;i<=m;i++){
        ll v=upper_bound(a+1,a+n+1,b[i])-a-1;
        if(v==0) v=n;
        ll cost=((b[i]-a[v])%l+l)%l;
        adj[i+n].push_back({v,cost});
        adjrev[v].push_back({i+n,cost});
    }
    compart.push_back({});
    len.push_back(0);
    st.push_back(-1);
    ed.push_back(-1);
    for(int i=1;i<=m;i++){
        if(vis[i+n]) continue;
        root=0,dfs(i+n);
        cnt++;
        compart.push_back({});
        st.push_back(1e18);
        ed.push_back(0);
        ll p=root;
        dist[root]=0;
        while(true){
            inloop[p]=1;
            auto [v,w]=adj[p][0];
            if(v==root){
                len.push_back(dist[p]+w);
                break;
            }
            dist[v]=dist[p]+w;
            p=v;
        }
        dfs1();
        sort(compart[cnt].begin(),compart[cnt].end());
        for(auto i:compart[cnt]){
            pos[i.second]=++ord;
            st[cnt]=min(st[cnt],ord);
            ed[cnt]=max(ed[cnt],ord);
        }
    }
    for(int i=1;i<=m;i++){
        sweep.push_back({distrev[i+n],0,i});
    }
//    for(int i=1;i<=n+m;i++) cout<<euler[i]<<' ';
//    cout<<ntr;
    cin>>q;
    for(int i=1;i<=q;i++){
        ll u,t;
        cin>>u>>t;
        sweep.push_back({t+distrev[u],u+1,i});
    }
    sort(sweep.begin(),sweep.end());
    for(auto i:sweep){
//        cout<<i[0]<<' '<<i[1]<<' '<<i[2]<<ntr;
        if(i[1]==0){
            upd(pos[i[2]],line[i[2]],1);
            upd(pos[i[2]],1,0);
            update(euler[i[2]+n],1);
//            cout<<euler[i[2]+n]<<ntr;
//            for(int i=1;i<=n+m;i++){
//                cout<<query(i)<<' ';
//            }
//            cout<<ntr;
        }
        else{
            ll u=i[1]-1;
            ll t=i[0]-distrev[u];
            t-=dist[u];
            ll id=i[2];
            if(!inloop[u]){
                ans[id]=query(euler[u]+sz[u]-1)-query(euler[u]-1);
            }
            else{
                ans[id]+=(query(euler[u]+sz[u]-1)-query(euler[u]-1))*(dist[u]>0);
//                cout<<ans[id]<<ntr;
//                cout<<euler[u]+sz[u]-1<<' '<<euler[u]-1<<ntr;
                ll p=t/len[num[u]];
                ll q=t%len[num[u]];
//                cout<<t<<' '<<p<<' '<<q<<ntr;
                ll lo=0,hi=compart[num[u]].size()-1,pos=-1;
                while(lo<=hi){
                    ll mid=(lo+hi)/2;
                    if(compart[num[u]][mid].first<=q) pos=mid,lo=mid+1;
                    else hi=mid-1;
                }
                ans[id]+=(get(ed[num[u]],0)-get(st[num[u]]-1,0))*p-(get(ed[num[u]],1)-get(st[num[u]]-1,1));
                //cout<<ans[id]<<ntr;
//                cout<<(get(ed[num[u]],0)-get(st[num[u]]-1,0))<<' '<<(get(ed[num[u]],1)-get(st[num[u]]-1,1))<<ntr;
                if(pos>=0){
                    ans[id]+=get(st[num[u]]+pos,0)-get(st[num[u]]-1,0);
//                    cout<<get(st[num[u]]+pos,0)-get(st[num[u]]-1,0)<<ntr;
                }
            }
        }
    }
    for(int i=1;i<=q;i++){
        cout<<ans[i]<<ntr;
    }
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 43600 KB Output is correct
2 Correct 9 ms 44304 KB Output is correct
3 Correct 8 ms 44228 KB Output is correct
4 Correct 9 ms 44572 KB Output is correct
5 Correct 9 ms 44608 KB Output is correct
6 Correct 9 ms 44608 KB Output is correct
7 Correct 9 ms 44608 KB Output is correct
8 Correct 9 ms 44352 KB Output is correct
9 Correct 8 ms 42304 KB Output is correct
10 Correct 8 ms 44352 KB Output is correct
11 Correct 9 ms 44360 KB Output is correct
12 Correct 9 ms 44608 KB Output is correct
13 Correct 9 ms 44608 KB Output is correct
14 Correct 9 ms 44540 KB Output is correct
15 Correct 9 ms 42560 KB Output is correct
16 Correct 9 ms 44352 KB Output is correct
17 Correct 9 ms 44484 KB Output is correct
18 Correct 9 ms 44532 KB Output is correct
19 Correct 10 ms 44352 KB Output is correct
20 Correct 10 ms 44608 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 89 ms 57476 KB Output is correct
2 Correct 140 ms 75996 KB Output is correct
3 Correct 114 ms 77488 KB Output is correct
4 Correct 129 ms 73432 KB Output is correct
5 Correct 154 ms 93588 KB Output is correct
6 Correct 142 ms 93660 KB Output is correct
7 Correct 111 ms 75172 KB Output is correct
8 Correct 119 ms 77224 KB Output is correct
9 Correct 178 ms 98272 KB Output is correct
10 Correct 154 ms 98112 KB Output is correct
11 Correct 259 ms 97244 KB Output is correct
12 Correct 265 ms 97244 KB Output is correct
13 Correct 245 ms 97244 KB Output is correct
14 Correct 229 ms 97116 KB Output is correct
15 Correct 183 ms 88936 KB Output is correct
16 Correct 159 ms 86236 KB Output is correct
17 Correct 157 ms 86168 KB Output is correct
18 Correct 97 ms 61736 KB Output is correct
19 Correct 95 ms 61776 KB Output is correct
20 Correct 134 ms 76012 KB Output is correct

Subtask #3
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 43600 KB Output is correct
2 Correct 9 ms 44304 KB Output is correct
3 Correct 8 ms 44228 KB Output is correct
4 Correct 9 ms 44572 KB Output is correct
5 Correct 9 ms 44608 KB Output is correct
6 Correct 9 ms 44608 KB Output is correct
7 Correct 9 ms 44608 KB Output is correct
8 Correct 9 ms 44352 KB Output is correct
9 Correct 8 ms 42304 KB Output is correct
10 Correct 8 ms 44352 KB Output is correct
11 Correct 9 ms 44360 KB Output is correct
12 Correct 9 ms 44608 KB Output is correct
13 Correct 9 ms 44608 KB Output is correct
14 Correct 9 ms 44540 KB Output is correct
15 Correct 9 ms 42560 KB Output is correct
16 Correct 9 ms 44352 KB Output is correct
17 Correct 9 ms 44484 KB Output is correct
18 Correct 9 ms 44532 KB Output is correct
19 Correct 10 ms 44352 KB Output is correct
20 Correct 10 ms 44608 KB Output is correct
21 Correct 89 ms 57476 KB Output is correct
22 Correct 140 ms 75996 KB Output is correct
23 Correct 114 ms 77488 KB Output is correct
24 Correct 129 ms 73432 KB Output is correct
25 Correct 154 ms 93588 KB Output is correct
26 Correct 142 ms 93660 KB Output is correct
27 Correct 111 ms 75172 KB Output is correct
28 Correct 119 ms 77224 KB Output is correct
29 Correct 178 ms 98272 KB Output is correct
30 Correct 154 ms 98112 KB Output is correct
31 Correct 259 ms 97244 KB Output is correct
32 Correct 265 ms 97244 KB Output is correct
33 Correct 245 ms 97244 KB Output is correct
34 Correct 229 ms 97116 KB Output is correct
35 Correct 183 ms 88936 KB Output is correct
36 Correct 159 ms 86236 KB Output is correct
37 Correct 157 ms 86168 KB Output is correct
38 Correct 97 ms 61736 KB Output is correct
39 Correct 95 ms 61776 KB Output is correct
40 Correct 134 ms 76012 KB Output is correct
41 Correct 253 ms 100016 KB Output is correct
42 Correct 232 ms 102008 KB Output is correct
43 Correct 121 ms 67804 KB Output is correct
44 Correct 205 ms 99628 KB Output is correct
45 Correct 238 ms 117932 KB Output is correct
46 Correct 274 ms 115884 KB Output is correct
47 Correct 267 ms 116348 KB Output is correct
48 Correct 238 ms 118188 KB Output is correct
49 Correct 238 ms 119168 KB Output is correct
50 Correct 203 ms 98524 KB Output is correct
51 Correct 195 ms 98524 KB Output is correct
52 Correct 238 ms 118960 KB Output is correct
53 Correct 245 ms 120024 KB Output is correct
54 Correct 248 ms 119020 KB Output is correct
55 Correct 303 ms 118804 KB Output is correct
56 Correct 223 ms 108480 KB Output is correct
57 Correct 229 ms 107040 KB Output is correct
58 Correct 238 ms 109060 KB Output is correct
59 Correct 199 ms 108472 KB Output is correct
60 Correct 201 ms 108784 KB Output is correct
61 Correct 206 ms 109316 KB Output is correct
62 Correct 302 ms 109356 KB Output is correct
63 Correct 174 ms 87600 KB Output is correct
64 Correct 159 ms 87756 KB Output is correct
65 Correct 165 ms 87800 KB Output is correct
66 Correct 153 ms 86760 KB Output is correct
67 Correct 156 ms 86636 KB Output is correct
68 Correct 142 ms 86616 KB Output is correct
69 Correct 232 ms 100272 KB Output is correct
70 Correct 259 ms 99216 KB Output is correct
71 Correct 220 ms 98880 KB Output is correct
72 Correct 260 ms 98992 KB Output is correct