oj.uz

Submission #865445

# Submission time Handle Problem Language Result Execution time Memory
865445 2023-10-24T08:30:42 Z guagua0407 Bitaro, who Leaps through Time (JOI19_timeleap) C++17
0 / 100
 551 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);
int n,q;
ll L[mxn],R[mxn];
node trash;

node merge(node a,node b){
    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));
            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];
    }
    segtree[0].resize(n*4);
    segtree[1].resize(n*4);
    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

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2648 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 1 ms 2648 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 1 ms 2652 KB Output is correct
12 Correct 2 ms 2908 KB Output is correct
13 Correct 1 ms 2892 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 2 ms 2908 KB Output is correct
16 Correct 2 ms 2908 KB Output is correct
17 Correct 2 ms 2908 KB Output is correct
18 Correct 2 ms 2908 KB Output is correct
19 Correct 2 ms 2908 KB Output is correct
20 Correct 2 ms 2908 KB Output is correct
21 Correct 2 ms 2908 KB Output is correct
22 Correct 1 ms 2652 KB Output is correct
23 Correct 1 ms 2908 KB Output is correct
24 Correct 2 ms 2940 KB Output is correct
25 Correct 2 ms 2908 KB Output is correct
26 Correct 1 ms 2908 KB Output is correct
27 Correct 2 ms 2652 KB Output is correct
28 Correct 2 ms 2964 KB Output is correct
29 Correct 2 ms 2908 KB Output is correct
30 Correct 2 ms 2908 KB Output is correct
31 Correct 3 ms 2908 KB Output is correct
32 Correct 2 ms 2908 KB Output is correct
33 Correct 1 ms 2652 KB Output is correct
34 Correct 2 ms 2904 KB Output is correct
35 Correct 2 ms 2904 KB Output is correct
36 Correct 2 ms 2908 KB Output is correct
37 Correct 1 ms 2908 KB Output is correct
38 Correct 2 ms 2908 KB Output is correct
39 Correct 2 ms 2908 KB Output is correct
40 Correct 1 ms 2908 KB Output is correct
41 Runtime error 253 ms 524288 KB Execution killed with signal 9
42 Halted 0 ms 0 KB -

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 551 ms 137724 KB Output is correct
2 Correct 529 ms 130236 KB Output is correct
3 Correct 542 ms 131708 KB Output is correct
4 Correct 530 ms 128080 KB Output is correct
5 Correct 532 ms 137356 KB Output is correct
6 Correct 528 ms 135256 KB Output is correct
7 Correct 539 ms 139368 KB Output is correct
8 Correct 529 ms 144976 KB Output is correct
9 Correct 511 ms 128852 KB Output is correct
10 Correct 544 ms 139000 KB Output is correct
11 Correct 529 ms 137584 KB Output is correct
12 Correct 546 ms 147144 KB Output is correct
13 Correct 547 ms 149336 KB Output is correct
14 Runtime error 256 ms 524288 KB Execution killed with signal 9
15 Halted 0 ms 0 KB -

Subtask #3
0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2648 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 1 ms 2648 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 1 ms 2652 KB Output is correct
12 Correct 2 ms 2908 KB Output is correct
13 Correct 1 ms 2892 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 2 ms 2908 KB Output is correct
16 Correct 2 ms 2908 KB Output is correct
17 Correct 2 ms 2908 KB Output is correct
18 Correct 2 ms 2908 KB Output is correct
19 Correct 2 ms 2908 KB Output is correct
20 Correct 2 ms 2908 KB Output is correct
21 Correct 2 ms 2908 KB Output is correct
22 Correct 1 ms 2652 KB Output is correct
23 Correct 1 ms 2908 KB Output is correct
24 Correct 2 ms 2940 KB Output is correct
25 Correct 2 ms 2908 KB Output is correct
26 Correct 1 ms 2908 KB Output is correct
27 Correct 2 ms 2652 KB Output is correct
28 Correct 2 ms 2964 KB Output is correct
29 Correct 2 ms 2908 KB Output is correct
30 Correct 2 ms 2908 KB Output is correct
31 Correct 3 ms 2908 KB Output is correct
32 Correct 2 ms 2908 KB Output is correct
33 Correct 1 ms 2652 KB Output is correct
34 Correct 2 ms 2904 KB Output is correct
35 Correct 2 ms 2904 KB Output is correct
36 Correct 2 ms 2908 KB Output is correct
37 Correct 1 ms 2908 KB Output is correct
38 Correct 2 ms 2908 KB Output is correct
39 Correct 2 ms 2908 KB Output is correct
40 Correct 1 ms 2908 KB Output is correct
41 Runtime error 253 ms 524288 KB Execution killed with signal 9
42 Halted 0 ms 0 KB -