oj.uz

Submission #865304

# Submission time Handle Problem Language Result Execution time Memory
865304 2023-10-24T07:19:09 Z guagua0407 Bitaro, who Leaps through Time (JOI19_timeleap) C++17
0 / 100
 536 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;

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));
            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;
}

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{
            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

# Verdict Execution time Memory Grader output
1 Correct 23 ms 141148 KB Output is correct
2 Correct 23 ms 141268 KB Output is correct
3 Correct 23 ms 141176 KB Output is correct
4 Correct 23 ms 141136 KB Output is correct
5 Correct 23 ms 141148 KB Output is correct
6 Correct 23 ms 141148 KB Output is correct
7 Correct 24 ms 141176 KB Output is correct
8 Correct 24 ms 141140 KB Output is correct
9 Correct 24 ms 141148 KB Output is correct
10 Correct 23 ms 141148 KB Output is correct
11 Correct 25 ms 141148 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 141144 KB Output is correct
15 Correct 24 ms 141148 KB Output is correct
16 Correct 24 ms 141228 KB Output is correct
17 Correct 24 ms 141148 KB Output is correct
18 Correct 24 ms 141144 KB Output is correct
19 Correct 26 ms 141404 KB Output is correct
20 Correct 24 ms 141272 KB Output is correct
21 Correct 24 ms 141148 KB Output is correct
22 Correct 24 ms 141124 KB Output is correct
23 Correct 25 ms 141144 KB Output is correct
24 Correct 24 ms 141148 KB Output is correct
25 Correct 24 ms 141140 KB Output is correct
26 Correct 24 ms 141148 KB Output is correct
27 Correct 25 ms 141168 KB Output is correct
28 Correct 24 ms 141140 KB Output is correct
29 Correct 24 ms 141140 KB Output is correct
30 Correct 25 ms 141148 KB Output is correct
31 Correct 24 ms 141148 KB Output is correct
32 Correct 25 ms 141140 KB Output is correct
33 Correct 25 ms 141200 KB Output is correct
34 Correct 24 ms 141108 KB Output is correct
35 Correct 24 ms 141140 KB Output is correct
36 Correct 24 ms 141148 KB Output is correct
37 Correct 24 ms 141144 KB Output is correct
38 Correct 24 ms 141196 KB Output is correct
39 Correct 24 ms 141188 KB Output is correct
40 Correct 25 ms 141396 KB Output is correct
41 Runtime error 230 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 524 ms 141148 KB Output is correct
2 Correct 499 ms 141144 KB Output is correct
3 Correct 510 ms 141256 KB Output is correct
4 Correct 506 ms 141144 KB Output is correct
5 Correct 521 ms 141140 KB Output is correct
6 Correct 511 ms 141140 KB Output is correct
7 Correct 502 ms 141140 KB Output is correct
8 Correct 508 ms 141136 KB Output is correct
9 Correct 479 ms 141136 KB Output is correct
10 Correct 511 ms 141148 KB Output is correct
11 Correct 511 ms 141148 KB Output is correct
12 Correct 536 ms 141136 KB Output is correct
13 Correct 522 ms 141148 KB Output is correct
14 Runtime error 238 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 23 ms 141148 KB Output is correct
2 Correct 23 ms 141268 KB Output is correct
3 Correct 23 ms 141176 KB Output is correct
4 Correct 23 ms 141136 KB Output is correct
5 Correct 23 ms 141148 KB Output is correct
6 Correct 23 ms 141148 KB Output is correct
7 Correct 24 ms 141176 KB Output is correct
8 Correct 24 ms 141140 KB Output is correct
9 Correct 24 ms 141148 KB Output is correct
10 Correct 23 ms 141148 KB Output is correct
11 Correct 25 ms 141148 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 141144 KB Output is correct
15 Correct 24 ms 141148 KB Output is correct
16 Correct 24 ms 141228 KB Output is correct
17 Correct 24 ms 141148 KB Output is correct
18 Correct 24 ms 141144 KB Output is correct
19 Correct 26 ms 141404 KB Output is correct
20 Correct 24 ms 141272 KB Output is correct
21 Correct 24 ms 141148 KB Output is correct
22 Correct 24 ms 141124 KB Output is correct
23 Correct 25 ms 141144 KB Output is correct
24 Correct 24 ms 141148 KB Output is correct
25 Correct 24 ms 141140 KB Output is correct
26 Correct 24 ms 141148 KB Output is correct
27 Correct 25 ms 141168 KB Output is correct
28 Correct 24 ms 141140 KB Output is correct
29 Correct 24 ms 141140 KB Output is correct
30 Correct 25 ms 141148 KB Output is correct
31 Correct 24 ms 141148 KB Output is correct
32 Correct 25 ms 141140 KB Output is correct
33 Correct 25 ms 141200 KB Output is correct
34 Correct 24 ms 141108 KB Output is correct
35 Correct 24 ms 141140 KB Output is correct
36 Correct 24 ms 141148 KB Output is correct
37 Correct 24 ms 141144 KB Output is correct
38 Correct 24 ms 141196 KB Output is correct
39 Correct 24 ms 141188 KB Output is correct
40 Correct 25 ms 141396 KB Output is correct
41 Runtime error 230 ms 524288 KB Execution killed with signal 9
42 Halted 0 ms 0 KB -