oj.uz

답안 #865399

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
865399 2023-10-24T07:55:35 Z guagua0407 Bitaro, who Leaps through Time (JOI19_timeleap) C++17
0 / 100
 454 ms 524288 KB 
//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define _ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

void setIO(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}

struct node{
    int s1,s2,e1,e2,sz;
    ll c1,c2;
};

const int mxn=3e5+5;
vector<vector<node>> segtree(2,vector<node>(mxn*4));
int n,q;
int L[mxn],R[mxn];
node trash;
int cnt=0;

void merge(node &ans,node &a,node &b){
    if(a.sz==-1){
        ans=b;
        return;
    }
    if(b.sz==-1){
        ans=a;
        return;
    }
    ans.sz=a.sz+b.sz;
    ans.s1=a.s1;
    ans.s2=a.s2;
    {
        ans.c1=a.c1;
        if(a.e1>b.s1){
            ans.c1+=b.c1+(a.e1-b.s1);
            ans.e1=b.e1;
        }
        else if(a.e1>=b.s2){
            ll dif=b.c1-b.c2;
            ans.c1+=b.c2+max(0ll,dif-(b.s1-a.e1));
            int res=a.e1+b.sz;
            if(res>b.e1){
                ans.e1=b.e1;
            }
            else{
                ans.e1=max(res,b.e2);
            }
        }
        else{
            ans.c1+=b.c2;
            ans.e1=b.e2;
        }
    }
    {
        ans.c2=a.c2;
        if(a.e2>b.s1){
            ans.c2+=b.c1+(a.e2-b.s1);
            ans.e2=b.e1;
        }
        else if(a.e2>=b.s2){
            ll dif=b.c1-b.c2;
            ans.c2+=b.c2+max(0ll,dif-(b.s1-a.e2));
            int res=a.e2+b.sz;
            if(res>b.e1){
                ans.e2=b.e1;
            }
            else{
                ans.e2=max(res,b.e2);
            }
        }
        else{
            ans.c2+=b.c2;
            ans.e2=b.e2;
        }
    }
}

void build(int id,int l=1,int r=n-1,int v=1){
    if(l==r){
        segtree[id][v].s1=R[l]-1;
        segtree[id][v].s2=L[l];
        segtree[id][v].e1=R[l];
        segtree[id][v].e2=L[l]+1;
        segtree[id][v].c1=segtree[id][v].c2=0;
        segtree[id][v].sz=1;
        return;
    }
    int mid=(l+r)/2;
    build(id,l,mid,v*2);
    build(id,mid+1,r,v*2+1);
    if(segtree[id][v*2].sz==-1){
        segtree[id][v]=segtree[id][v*2+1];
        return;
    }
    if(segtree[id][v*2+1].sz==-1){
        segtree[id][v]=segtree[id][v*2];
        return;
    }
    segtree[id][v].sz=segtree[id][v*2].sz+segtree[id][v*2+1].sz;
    segtree[id][v].s1=segtree[id][v*2].s1;
    segtree[id][v].s2=segtree[id][v*2].s2;
    {
        segtree[id][v].c1=segtree[id][v*2].c1;
        if(segtree[id][v*2].e1>segtree[id][v*2+1].s1){
            segtree[id][v].c1+=segtree[id][v*2+1].c1+(segtree[id][v*2].e1-segtree[id][v*2+1].s1);
            segtree[id][v].e1=segtree[id][v*2+1].e1;
        }
        else if(segtree[id][v*2].e1>=segtree[id][v*2+1].s2){
            ll dif=segtree[id][v*2+1].c1-segtree[id][v*2+1].c2;
            segtree[id][v].c1+=segtree[id][v*2+1].c2+max(0ll,dif-(segtree[id][v*2+1].s1-segtree[id][v*2].e1));
            int res=segtree[id][v*2].e1+segtree[id][v*2+1].sz;
            if(res>segtree[id][v*2+1].e1){
                segtree[id][v].e1=segtree[id][v*2+1].e1;
            }
            else{
                segtree[id][v].e1=max(res,segtree[id][v*2+1].e2);
            }
        }
        else{
            segtree[id][v].c1+=segtree[id][v*2+1].c2;
            segtree[id][v].e1=segtree[id][v*2+1].e2;
        }
    }
    {
        segtree[id][v].c2=segtree[id][v*2].c2;
        if(segtree[id][v*2].e2>segtree[id][v*2+1].s1){
            segtree[id][v].c2+=segtree[id][v*2+1].c1+(segtree[id][v*2].e2-segtree[id][v*2+1].s1);
            segtree[id][v].e2=segtree[id][v*2+1].e1;
        }
        else if(segtree[id][v*2].e2>=segtree[id][v*2+1].s2){
            ll dif=segtree[id][v*2+1].c1-segtree[id][v*2+1].c2;
            segtree[id][v].c2+=segtree[id][v*2+1].c2+max(0ll,dif-(segtree[id][v*2+1].s1-segtree[id][v*2].e2));
            int res=segtree[id][v*2].e2+segtree[id][v*2+1].sz;
            if(res>segtree[id][v*2+1].e1){
                segtree[id][v].e2=segtree[id][v*2+1].e1;
            }
            else{
                segtree[id][v].e2=max(res,segtree[id][v*2+1].e2);
            }
        }
        else{
            segtree[id][v].c2+=segtree[id][v*2+1].c2;
            segtree[id][v].e2=segtree[id][v*2+1].e2;
        }
    }
}

void update(int id,int pos,int s,int e,int l=1,int r=n-1,int v=1){
    if(l==r){
        segtree[id][v].s1=e-1;
        segtree[id][v].s2=s;
        segtree[id][v].e1=e;
        segtree[id][v].e2=s+1;
        return;
    }
    int mid=(l+r)/2;
    if(pos<=mid) update(id,pos,s,e,l,mid,v*2);
    else update(id,pos,s,e,mid+1,r,v*2+1);
        if(segtree[id][v*2].sz==-1){
        segtree[id][v]=segtree[id][v*2+1];
        return;
    }
    if(segtree[id][v*2+1].sz==-1){
        segtree[id][v]=segtree[id][v*2];
        return;
    }
    segtree[id][v].sz=segtree[id][v*2].sz+segtree[id][v*2+1].sz;
    segtree[id][v].s1=segtree[id][v*2].s1;
    segtree[id][v].s2=segtree[id][v*2].s2;
    {
        segtree[id][v].c1=segtree[id][v*2].c1;
        if(segtree[id][v*2].e1>segtree[id][v*2+1].s1){
            segtree[id][v].c1+=segtree[id][v*2+1].c1+(segtree[id][v*2].e1-segtree[id][v*2+1].s1);
            segtree[id][v].e1=segtree[id][v*2+1].e1;
        }
        else if(segtree[id][v*2].e1>=segtree[id][v*2+1].s2){
            ll dif=segtree[id][v*2+1].c1-segtree[id][v*2+1].c2;
            segtree[id][v].c1+=segtree[id][v*2+1].c2+max(0ll,dif-(segtree[id][v*2+1].s1-segtree[id][v*2].e1));
            int res=segtree[id][v*2].e1+segtree[id][v*2+1].sz;
            if(res>segtree[id][v*2+1].e1){
                segtree[id][v].e1=segtree[id][v*2+1].e1;
            }
            else{
                segtree[id][v].e1=max(res,segtree[id][v*2+1].e2);
            }
        }
        else{
            segtree[id][v].c1+=segtree[id][v*2+1].c2;
            segtree[id][v].e1=segtree[id][v*2+1].e2;
        }
    }
    {
        segtree[id][v].c2=segtree[id][v*2].c2;
        if(segtree[id][v*2].e2>segtree[id][v*2+1].s1){
            segtree[id][v].c2+=segtree[id][v*2+1].c1+(segtree[id][v*2].e2-segtree[id][v*2+1].s1);
            segtree[id][v].e2=segtree[id][v*2+1].e1;
        }
        else if(segtree[id][v*2].e2>=segtree[id][v*2+1].s2){
            ll dif=segtree[id][v*2+1].c1-segtree[id][v*2+1].c2;
            segtree[id][v].c2+=segtree[id][v*2+1].c2+max(0ll,dif-(segtree[id][v*2+1].s1-segtree[id][v*2].e2));
            int res=segtree[id][v*2].e2+segtree[id][v*2+1].sz;
            if(res>segtree[id][v*2+1].e1){
                segtree[id][v].e2=segtree[id][v*2+1].e1;
            }
            else{
                segtree[id][v].e2=max(res,segtree[id][v*2+1].e2);
            }
        }
        else{
            segtree[id][v].c2+=segtree[id][v*2+1].c2;
            segtree[id][v].e2=segtree[id][v*2+1].e2;
        }
    }

}

node query(int id,int tl,int tr,int l=1,int r=n-1,int v=1){
    if(r<tl or tr<l){
        return trash;
    }
    if(tl<=l and r<=tr){
        return segtree[id][v];
    }
    int mid=(l+r)/2;
    if(mid<tl or min(mid,tr)<l) return query(id,max(mid+1,tl),tr,mid+1,r,v*2+1);
    if(r<min(tl,mid+1) or tr<mid+1) return query(id,tl,min(mid,tr),l,mid,v*2);
    node a=query(id,tl,min(mid,tr),l,mid,v*2);
    node b=query(id,max(mid+1,tl),tr,mid+1,r,v*2+1);
    node ans;
    ans.sz=a.sz+b.sz;
    ans.s1=a.s1;
    ans.s2=a.s2;
    {
        ans.c1=a.c1;
        if(a.e1>b.s1){
            ans.c1+=b.c1+(a.e1-b.s1);
            ans.e1=b.e1;
        }
        else if(a.e1>=b.s2){
            ll dif=b.c1-b.c2;
            ans.c1+=b.c2+max(0ll,dif-(b.s1-a.e1));
            int res=a.e1+b.sz;
            if(res>b.e1){
                ans.e1=b.e1;
            }
            else{
                ans.e1=max(res,b.e2);
            }
        }
        else{
            ans.c1+=b.c2;
            ans.e1=b.e2;
        }
    }
    {
        ans.c2=a.c2;
        if(a.e2>b.s1){
            ans.c2+=b.c1+(a.e2-b.s1);
            ans.e2=b.e1;
        }
        else if(a.e2>=b.s2){
            ll dif=b.c1-b.c2;
            ans.c2+=b.c2+max(0ll,dif-(b.s1-a.e2));
            int res=a.e2+b.sz;
            if(res>b.e1){
                ans.e2=b.e1;
            }
            else{
                ans.e2=max(res,b.e2);
            }
        }
        else{
            ans.c2+=b.c2;
            ans.e2=b.e2;
        }
    }
    return ans;
}

signed main() {_
    trash.sz=-1;
    cin>>n>>q;
    for(int i=1;i<n;i++){
        cin>>L[i]>>R[i];
    }
    build(0);
    reverse(L+1,L+n);
    reverse(R+1,R+n);
    build(1);
    reverse(L+1,L+n);
    reverse(R+1,R+n);
    for(int i=0;i<q;i++){
        int t;
        cin>>t;
        if(t==1){
            ll p,s,e;
            cin>>p>>s>>e;
            update(0,p,s,e);
            update(1,n-p,s,e);
        }
        else{
            int a,b,c,d;
            cin>>a>>b>>c>>d;
            if(a==c){
                cout<<max(0,b-d)<<'\n';
                continue;
            }
            node tmp;
            if(a<c){
                tmp=query(0,a,c-1);
            }
            else{
                a=n-a+1;
                c=n-c+1;
                //swap(b,d);
                tmp=query(1,a,c-1);
            }
            /*cout<<tmp.sz<<'\n';
            cout<<tmp.s1<<' '<<tmp.s2<<'\n';
            cout<<tmp.e1<<' '<<tmp.e2<<'\n';
            cout<<tmp.c1<<' '<<tmp.c2<<'\n';*/
            ll ans=0;
            int fin;
            if(b>tmp.s1){
                ans+=tmp.c1+(b-tmp.s1);
                fin=tmp.e1;
            }
            else if(b>=tmp.s2){
                ll dif=tmp.c1-tmp.c2;
                ans+=tmp.c2+max(0ll,dif-(tmp.s1-b));
                int res=b+tmp.sz;
                if(res>tmp.e1){
                    fin=tmp.e1;
                }
                else{
                    fin=max(res,tmp.e2);
                }
            }
            else{
                ans+=tmp.c2;
                fin=tmp.e2;
            }
            cout<<ans+max(0,fin-d)<<'\n';;
        }
    }
    return 0;
}
//maybe its multiset not set

Compilation message

timeleap.cpp: In function 'void setIO(std::string)':
timeleap.cpp:12:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
timeleap.cpp:13:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 141144 KB Output is correct
2 Correct 24 ms 141152 KB Output is correct
3 Correct 24 ms 141136 KB Output is correct
4 Correct 24 ms 141144 KB Output is correct
5 Correct 24 ms 141144 KB Output is correct
6 Correct 23 ms 141192 KB Output is correct
7 Correct 23 ms 141148 KB Output is correct
8 Correct 23 ms 141148 KB Output is correct
9 Correct 24 ms 141148 KB Output is correct
10 Correct 23 ms 141252 KB Output is correct
11 Correct 24 ms 141108 KB Output is correct
12 Correct 25 ms 141148 KB Output is correct
13 Correct 24 ms 141148 KB Output is correct
14 Correct 24 ms 141140 KB Output is correct
15 Correct 24 ms 141148 KB Output is correct
16 Correct 27 ms 141108 KB Output is correct
17 Correct 24 ms 141140 KB Output is correct
18 Correct 25 ms 141164 KB Output is correct
19 Correct 26 ms 141136 KB Output is correct
20 Correct 25 ms 141148 KB Output is correct
21 Correct 25 ms 141148 KB Output is correct
22 Correct 25 ms 141140 KB Output is correct
23 Correct 25 ms 141148 KB Output is correct
24 Correct 25 ms 141140 KB Output is correct
25 Correct 25 ms 141236 KB Output is correct
26 Correct 26 ms 141156 KB Output is correct
27 Correct 25 ms 141300 KB Output is correct
28 Correct 25 ms 141168 KB Output is correct
29 Correct 25 ms 141148 KB Output is correct
30 Correct 27 ms 141140 KB Output is correct
31 Correct 24 ms 141136 KB Output is correct
32 Correct 24 ms 141148 KB Output is correct
33 Correct 24 ms 141148 KB Output is correct
34 Correct 24 ms 141148 KB Output is correct
35 Correct 24 ms 141140 KB Output is correct
36 Correct 27 ms 141396 KB Output is correct
37 Correct 25 ms 141144 KB Output is correct
38 Correct 24 ms 141216 KB Output is correct
39 Correct 24 ms 141088 KB Output is correct
40 Correct 25 ms 141140 KB Output is correct
41 Runtime error 237 ms 524288 KB Execution killed with signal 9
42 Halted 0 ms 0 KB -

Subtask #2
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 428 ms 141136 KB Output is correct
2 Correct 417 ms 141148 KB Output is correct
3 Correct 418 ms 141148 KB Output is correct
4 Correct 409 ms 141136 KB Output is correct
5 Correct 444 ms 141136 KB Output is correct
6 Correct 412 ms 141148 KB Output is correct
7 Correct 412 ms 141136 KB Output is correct
8 Correct 415 ms 141136 KB Output is correct
9 Correct 382 ms 141084 KB Output is correct
10 Correct 417 ms 141144 KB Output is correct
11 Correct 454 ms 141140 KB Output is correct
12 Correct 427 ms 141136 KB Output is correct
13 Correct 434 ms 141408 KB Output is correct
14 Runtime error 232 ms 524288 KB Execution killed with signal 9
15 Halted 0 ms 0 KB -

Subtask #3
0 / 66.0

# 결과 실행 시간 메모리 Grader output
1 Correct 25 ms 141144 KB Output is correct
2 Correct 24 ms 141152 KB Output is correct
3 Correct 24 ms 141136 KB Output is correct
4 Correct 24 ms 141144 KB Output is correct
5 Correct 24 ms 141144 KB Output is correct
6 Correct 23 ms 141192 KB Output is correct
7 Correct 23 ms 141148 KB Output is correct
8 Correct 23 ms 141148 KB Output is correct
9 Correct 24 ms 141148 KB Output is correct
10 Correct 23 ms 141252 KB Output is correct
11 Correct 24 ms 141108 KB Output is correct
12 Correct 25 ms 141148 KB Output is correct
13 Correct 24 ms 141148 KB Output is correct
14 Correct 24 ms 141140 KB Output is correct
15 Correct 24 ms 141148 KB Output is correct
16 Correct 27 ms 141108 KB Output is correct
17 Correct 24 ms 141140 KB Output is correct
18 Correct 25 ms 141164 KB Output is correct
19 Correct 26 ms 141136 KB Output is correct
20 Correct 25 ms 141148 KB Output is correct
21 Correct 25 ms 141148 KB Output is correct
22 Correct 25 ms 141140 KB Output is correct
23 Correct 25 ms 141148 KB Output is correct
24 Correct 25 ms 141140 KB Output is correct
25 Correct 25 ms 141236 KB Output is correct
26 Correct 26 ms 141156 KB Output is correct
27 Correct 25 ms 141300 KB Output is correct
28 Correct 25 ms 141168 KB Output is correct
29 Correct 25 ms 141148 KB Output is correct
30 Correct 27 ms 141140 KB Output is correct
31 Correct 24 ms 141136 KB Output is correct
32 Correct 24 ms 141148 KB Output is correct
33 Correct 24 ms 141148 KB Output is correct
34 Correct 24 ms 141148 KB Output is correct
35 Correct 24 ms 141140 KB Output is correct
36 Correct 27 ms 141396 KB Output is correct
37 Correct 25 ms 141144 KB Output is correct
38 Correct 24 ms 141216 KB Output is correct
39 Correct 24 ms 141088 KB Output is correct
40 Correct 25 ms 141140 KB Output is correct
41 Runtime error 237 ms 524288 KB Execution killed with signal 9
42 Halted 0 ms 0 KB -