oj.uz

답안 #865346

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
865346 2023-10-24T07:37:32 Z guagua0407 Bitaro, who Leaps through Time (JOI19_timeleap) C++17
0 / 100
 590 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{
    ll s1,s2,e1,e2,c1,c2,sz;
};

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

node merge(node a,node b){
    if(a.sz==-1) return b;
    if(b.sz==-1) return a;
    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));
            ll 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));
            ll 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;
}

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);
    segtree[id][v]=merge(segtree[id][v*2],segtree[id][v*2+1]);
}

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);
    segtree[id][v]=merge(segtree[id][v*2],segtree[id][v*2+1]);
}

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;
    return merge(query(id,tl,min(mid,tr),l,mid,v*2),query(id,max(mid+1,tl),tr,mid+1,r,v*2+1));
}

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{
            ll a,b,c,d;
            cin>>a>>b>>c>>d;
            if(a==c){
                cout<<max(0ll,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));
                ll 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(0ll,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 33 ms 197460 KB Output is correct
2 Correct 31 ms 197464 KB Output is correct
3 Correct 31 ms 197464 KB Output is correct
4 Correct 31 ms 197604 KB Output is correct
5 Correct 31 ms 197456 KB Output is correct
6 Correct 30 ms 197464 KB Output is correct
7 Correct 30 ms 197464 KB Output is correct
8 Correct 31 ms 197468 KB Output is correct
9 Correct 31 ms 197460 KB Output is correct
10 Correct 31 ms 197484 KB Output is correct
11 Correct 32 ms 197460 KB Output is correct
12 Correct 34 ms 197468 KB Output is correct
13 Correct 32 ms 197468 KB Output is correct
14 Correct 31 ms 197672 KB Output is correct
15 Correct 31 ms 197620 KB Output is correct
16 Correct 31 ms 197456 KB Output is correct
17 Correct 32 ms 197464 KB Output is correct
18 Correct 31 ms 197648 KB Output is correct
19 Correct 32 ms 197456 KB Output is correct
20 Correct 31 ms 197468 KB Output is correct
21 Correct 32 ms 197460 KB Output is correct
22 Correct 31 ms 197528 KB Output is correct
23 Correct 31 ms 197460 KB Output is correct
24 Correct 30 ms 197468 KB Output is correct
25 Correct 31 ms 197464 KB Output is correct
26 Correct 31 ms 197468 KB Output is correct
27 Correct 31 ms 197460 KB Output is correct
28 Correct 31 ms 197504 KB Output is correct
29 Correct 32 ms 197600 KB Output is correct
30 Correct 32 ms 197468 KB Output is correct
31 Correct 31 ms 197460 KB Output is correct
32 Correct 31 ms 197592 KB Output is correct
33 Correct 33 ms 197460 KB Output is correct
34 Correct 31 ms 197660 KB Output is correct
35 Correct 32 ms 197460 KB Output is correct
36 Correct 32 ms 197656 KB Output is correct
37 Correct 32 ms 197448 KB Output is correct
38 Correct 31 ms 197848 KB Output is correct
39 Correct 32 ms 197456 KB Output is correct
40 Correct 32 ms 197460 KB Output is correct
41 Runtime error 221 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 567 ms 197456 KB Output is correct
2 Correct 546 ms 197456 KB Output is correct
3 Correct 544 ms 197460 KB Output is correct
4 Correct 551 ms 197460 KB Output is correct
5 Correct 565 ms 197456 KB Output is correct
6 Correct 590 ms 197456 KB Output is correct
7 Correct 542 ms 197504 KB Output is correct
8 Correct 557 ms 197456 KB Output is correct
9 Correct 540 ms 197456 KB Output is correct
10 Correct 562 ms 197456 KB Output is correct
11 Correct 559 ms 197460 KB Output is correct
12 Correct 570 ms 197460 KB Output is correct
13 Correct 568 ms 197456 KB Output is correct
14 Runtime error 216 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 33 ms 197460 KB Output is correct
2 Correct 31 ms 197464 KB Output is correct
3 Correct 31 ms 197464 KB Output is correct
4 Correct 31 ms 197604 KB Output is correct
5 Correct 31 ms 197456 KB Output is correct
6 Correct 30 ms 197464 KB Output is correct
7 Correct 30 ms 197464 KB Output is correct
8 Correct 31 ms 197468 KB Output is correct
9 Correct 31 ms 197460 KB Output is correct
10 Correct 31 ms 197484 KB Output is correct
11 Correct 32 ms 197460 KB Output is correct
12 Correct 34 ms 197468 KB Output is correct
13 Correct 32 ms 197468 KB Output is correct
14 Correct 31 ms 197672 KB Output is correct
15 Correct 31 ms 197620 KB Output is correct
16 Correct 31 ms 197456 KB Output is correct
17 Correct 32 ms 197464 KB Output is correct
18 Correct 31 ms 197648 KB Output is correct
19 Correct 32 ms 197456 KB Output is correct
20 Correct 31 ms 197468 KB Output is correct
21 Correct 32 ms 197460 KB Output is correct
22 Correct 31 ms 197528 KB Output is correct
23 Correct 31 ms 197460 KB Output is correct
24 Correct 30 ms 197468 KB Output is correct
25 Correct 31 ms 197464 KB Output is correct
26 Correct 31 ms 197468 KB Output is correct
27 Correct 31 ms 197460 KB Output is correct
28 Correct 31 ms 197504 KB Output is correct
29 Correct 32 ms 197600 KB Output is correct
30 Correct 32 ms 197468 KB Output is correct
31 Correct 31 ms 197460 KB Output is correct
32 Correct 31 ms 197592 KB Output is correct
33 Correct 33 ms 197460 KB Output is correct
34 Correct 31 ms 197660 KB Output is correct
35 Correct 32 ms 197460 KB Output is correct
36 Correct 32 ms 197656 KB Output is correct
37 Correct 32 ms 197448 KB Output is correct
38 Correct 31 ms 197848 KB Output is correct
39 Correct 32 ms 197456 KB Output is correct
40 Correct 32 ms 197460 KB Output is correct
41 Runtime error 221 ms 524288 KB Execution killed with signal 9
42 Halted 0 ms 0 KB -