oj.uz

답안 #865392

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
865392 2023-10-24T07:52:10 Z guagua0407 Bitaro, who Leaps through Time (JOI19_timeleap) C++17
0 / 100
 602 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;
    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);
    if(a.sz==-1){
        return b;
    }
    if(b.sz==-1){
        return a;
    }
    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 55 ms 141128 KB Output is correct
2 Correct 56 ms 141296 KB Output is correct
3 Correct 56 ms 141136 KB Output is correct
4 Correct 53 ms 141156 KB Output is correct
5 Correct 56 ms 141140 KB Output is correct
6 Correct 54 ms 141136 KB Output is correct
7 Correct 54 ms 141140 KB Output is correct
8 Correct 64 ms 141424 KB Output is correct
9 Correct 54 ms 141180 KB Output is correct
10 Correct 56 ms 141140 KB Output is correct
11 Correct 56 ms 141260 KB Output is correct
12 Correct 54 ms 141140 KB Output is correct
13 Correct 56 ms 141136 KB Output is correct
14 Correct 54 ms 141088 KB Output is correct
15 Correct 70 ms 141140 KB Output is correct
16 Correct 62 ms 141256 KB Output is correct
17 Correct 56 ms 141292 KB Output is correct
18 Correct 48 ms 141168 KB Output is correct
19 Correct 57 ms 141136 KB Output is correct
20 Correct 64 ms 141140 KB Output is correct
21 Correct 56 ms 141144 KB Output is correct
22 Correct 58 ms 141168 KB Output is correct
23 Correct 50 ms 141172 KB Output is correct
24 Correct 56 ms 141096 KB Output is correct
25 Correct 57 ms 141312 KB Output is correct
26 Correct 57 ms 141224 KB Output is correct
27 Correct 56 ms 141132 KB Output is correct
28 Correct 51 ms 141148 KB Output is correct
29 Correct 61 ms 141140 KB Output is correct
30 Correct 70 ms 141292 KB Output is correct
31 Correct 59 ms 141140 KB Output is correct
32 Correct 57 ms 141200 KB Output is correct
33 Correct 70 ms 141236 KB Output is correct
34 Correct 66 ms 141092 KB Output is correct
35 Correct 57 ms 141164 KB Output is correct
36 Correct 57 ms 141260 KB Output is correct
37 Correct 56 ms 141136 KB Output is correct
38 Correct 56 ms 141140 KB Output is correct
39 Correct 56 ms 141224 KB Output is correct
40 Correct 62 ms 141140 KB Output is correct
41 Runtime error 279 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 591 ms 141140 KB Output is correct
2 Correct 583 ms 141140 KB Output is correct
3 Correct 576 ms 141136 KB Output is correct
4 Correct 551 ms 141264 KB Output is correct
5 Correct 600 ms 141148 KB Output is correct
6 Correct 552 ms 141140 KB Output is correct
7 Correct 574 ms 141140 KB Output is correct
8 Correct 581 ms 141140 KB Output is correct
9 Correct 552 ms 141136 KB Output is correct
10 Correct 597 ms 141336 KB Output is correct
11 Correct 546 ms 141176 KB Output is correct
12 Correct 602 ms 141116 KB Output is correct
13 Correct 531 ms 141140 KB Output is correct
14 Runtime error 254 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 55 ms 141128 KB Output is correct
2 Correct 56 ms 141296 KB Output is correct
3 Correct 56 ms 141136 KB Output is correct
4 Correct 53 ms 141156 KB Output is correct
5 Correct 56 ms 141140 KB Output is correct
6 Correct 54 ms 141136 KB Output is correct
7 Correct 54 ms 141140 KB Output is correct
8 Correct 64 ms 141424 KB Output is correct
9 Correct 54 ms 141180 KB Output is correct
10 Correct 56 ms 141140 KB Output is correct
11 Correct 56 ms 141260 KB Output is correct
12 Correct 54 ms 141140 KB Output is correct
13 Correct 56 ms 141136 KB Output is correct
14 Correct 54 ms 141088 KB Output is correct
15 Correct 70 ms 141140 KB Output is correct
16 Correct 62 ms 141256 KB Output is correct
17 Correct 56 ms 141292 KB Output is correct
18 Correct 48 ms 141168 KB Output is correct
19 Correct 57 ms 141136 KB Output is correct
20 Correct 64 ms 141140 KB Output is correct
21 Correct 56 ms 141144 KB Output is correct
22 Correct 58 ms 141168 KB Output is correct
23 Correct 50 ms 141172 KB Output is correct
24 Correct 56 ms 141096 KB Output is correct
25 Correct 57 ms 141312 KB Output is correct
26 Correct 57 ms 141224 KB Output is correct
27 Correct 56 ms 141132 KB Output is correct
28 Correct 51 ms 141148 KB Output is correct
29 Correct 61 ms 141140 KB Output is correct
30 Correct 70 ms 141292 KB Output is correct
31 Correct 59 ms 141140 KB Output is correct
32 Correct 57 ms 141200 KB Output is correct
33 Correct 70 ms 141236 KB Output is correct
34 Correct 66 ms 141092 KB Output is correct
35 Correct 57 ms 141164 KB Output is correct
36 Correct 57 ms 141260 KB Output is correct
37 Correct 56 ms 141136 KB Output is correct
38 Correct 56 ms 141140 KB Output is correct
39 Correct 56 ms 141224 KB Output is correct
40 Correct 62 ms 141140 KB Output is correct
41 Runtime error 279 ms 524288 KB Execution killed with signal 9
42 Halted 0 ms 0 KB -