oj.uz

Submission #865334

# Submission time Handle Problem Language Result Execution time Memory
865334 2023-10-24T07:31:15 Z guagua0407 Bitaro, who Leaps through Time (JOI19_timeleap) C++17
0 / 100
 234 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){
    cnt++;
    assert(cnt<100000);
    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);
    merge(segtree[id][v],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);
    merge(segtree[id][v],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;
    node ans;
    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);
    merge(ans,a,b);
    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

# Verdict Execution time Memory Grader output
1 Correct 24 ms 141148 KB Output is correct
2 Correct 25 ms 141296 KB Output is correct
3 Correct 24 ms 141148 KB Output is correct
4 Correct 23 ms 141148 KB Output is correct
5 Correct 23 ms 141320 KB Output is correct
6 Correct 22 ms 141144 KB Output is correct
7 Correct 23 ms 141148 KB Output is correct
8 Correct 24 ms 141148 KB Output is correct
9 Correct 27 ms 141140 KB Output is correct
10 Correct 23 ms 141148 KB Output is correct
11 Correct 25 ms 141272 KB Output is correct
12 Correct 25 ms 141148 KB Output is correct
13 Correct 24 ms 141148 KB Output is correct
14 Correct 25 ms 141396 KB Output is correct
15 Correct 25 ms 141148 KB Output is correct
16 Correct 24 ms 141136 KB Output is correct
17 Correct 24 ms 141148 KB Output is correct
18 Correct 24 ms 141208 KB Output is correct
19 Correct 24 ms 141240 KB Output is correct
20 Correct 24 ms 141148 KB Output is correct
21 Correct 25 ms 141140 KB Output is correct
22 Correct 25 ms 141280 KB Output is correct
23 Correct 23 ms 141144 KB Output is correct
24 Correct 25 ms 141148 KB Output is correct
25 Correct 25 ms 141308 KB Output is correct
26 Correct 24 ms 141144 KB Output is correct
27 Correct 25 ms 141136 KB Output is correct
28 Correct 25 ms 141148 KB Output is correct
29 Correct 25 ms 141216 KB Output is correct
30 Correct 25 ms 141148 KB Output is correct
31 Correct 24 ms 141148 KB Output is correct
32 Correct 24 ms 141140 KB Output is correct
33 Correct 24 ms 141148 KB Output is correct
34 Correct 24 ms 141188 KB Output is correct
35 Correct 25 ms 141424 KB Output is correct
36 Correct 25 ms 141148 KB Output is correct
37 Correct 25 ms 141148 KB Output is correct
38 Correct 24 ms 141320 KB Output is correct
39 Correct 27 ms 141148 KB Output is correct
40 Correct 24 ms 141556 KB Output is correct
41 Runtime error 234 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 Runtime error 139 ms 195524 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #3
0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 141148 KB Output is correct
2 Correct 25 ms 141296 KB Output is correct
3 Correct 24 ms 141148 KB Output is correct
4 Correct 23 ms 141148 KB Output is correct
5 Correct 23 ms 141320 KB Output is correct
6 Correct 22 ms 141144 KB Output is correct
7 Correct 23 ms 141148 KB Output is correct
8 Correct 24 ms 141148 KB Output is correct
9 Correct 27 ms 141140 KB Output is correct
10 Correct 23 ms 141148 KB Output is correct
11 Correct 25 ms 141272 KB Output is correct
12 Correct 25 ms 141148 KB Output is correct
13 Correct 24 ms 141148 KB Output is correct
14 Correct 25 ms 141396 KB Output is correct
15 Correct 25 ms 141148 KB Output is correct
16 Correct 24 ms 141136 KB Output is correct
17 Correct 24 ms 141148 KB Output is correct
18 Correct 24 ms 141208 KB Output is correct
19 Correct 24 ms 141240 KB Output is correct
20 Correct 24 ms 141148 KB Output is correct
21 Correct 25 ms 141140 KB Output is correct
22 Correct 25 ms 141280 KB Output is correct
23 Correct 23 ms 141144 KB Output is correct
24 Correct 25 ms 141148 KB Output is correct
25 Correct 25 ms 141308 KB Output is correct
26 Correct 24 ms 141144 KB Output is correct
27 Correct 25 ms 141136 KB Output is correct
28 Correct 25 ms 141148 KB Output is correct
29 Correct 25 ms 141216 KB Output is correct
30 Correct 25 ms 141148 KB Output is correct
31 Correct 24 ms 141148 KB Output is correct
32 Correct 24 ms 141140 KB Output is correct
33 Correct 24 ms 141148 KB Output is correct
34 Correct 24 ms 141188 KB Output is correct
35 Correct 25 ms 141424 KB Output is correct
36 Correct 25 ms 141148 KB Output is correct
37 Correct 25 ms 141148 KB Output is correct
38 Correct 24 ms 141320 KB Output is correct
39 Correct 27 ms 141148 KB Output is correct
40 Correct 24 ms 141556 KB Output is correct
41 Runtime error 234 ms 524288 KB Execution killed with signal 9
42 Halted 0 ms 0 KB -