Submission #547108

# Submission time Handle Problem Language Result Execution time Memory
547108 2022-04-09T14:49:21 Z leaked Food Court (JOI21_foodcourt) C++14
13 / 100
664 ms 71576 KB
#include <bits/stdc++.h>

#define f first
#define s second
#define m_p make_pair
#define vec vector
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define sz(x) (int)(x).size()
#define pw(x) (1LL<<(x))
#define fast_prep ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
////#define int long long
//#pragma GCC optimize("unroll-loops")
using namespace std;
typedef long long ll;
const ll inf=1e18;
const int N=3e5+1;
template<class T> bool umax(T &a,const T &b){return (a<b?a=b,1:0);}
template<class T> bool umin(T &a,const T &b){return (a>b?a=b,1:0);}
struct fenwick{
    ll fnw[N];
    fenwick(){
        fill(fnw,fnw+N,0);
    }
    void reset(){
        fill(fnw,fnw+N,0);
    }
    void upd(int i,int x){
        ++i;
        while(i<N){
            fnw[i]+=x;
            i+=i&-i;
        }
    }
    ll get(int i){
        ++i;
        ll ans=0;
        while(i>0){
            ans+=fnw[i];
            i-=i&-i;
        }
        return ans;
    }
    void add(int l,int r,ll x){
        upd(l,x);
        upd(r+1,-x);
    }
};

struct segtree{
    ll p1[4*N],p2[4*N],p4[4*N];
    ///add,whom,to_set
    int p3[4*N];
    struct node{
        ll x,y;
        node(){
            x=0,y=inf;
        }
    };
    node mg(node a,node b){
        if(a.x>b.x) swap(a.x,b.x);
        if(b.x>b.y) swap(b.x,b.y);
        if(a.x==b.x) umin(a.y,b.y);
        else umin(a.y,b.x);
        return a;
    }
    node tt[4*N];
    segtree(){
        fill(p1,p1+4*N,0);
        fill(p2,p2+4*N,-inf);
        fill(p4,p4+4*N,0);
        fill(p3,p3+4*N,-1);
    }
    void push(int v,int tl,int tr){
//        if(p2[v]==-inf && p1[v]==0)
//            return;
        for(auto &u : {v<<1,v<<1|1}){
//            if(p2[v]!=-inf)
            if(tt[u].x==p2[v]){
                tt[u].x=p4[v];
                umax(p3[u],p3[v]);
            }else tt[u].x+=p1[v];
            if(p2[v]!=-inf){
                p2[u]+=p2[v];
                p4[u]=p4[v];
            }else p4[u]+=p1[v];
            tt[u].y+=p1[v];
            p1[u]+=p1[v];
        }
        p1[v]=0;p2[v]=-inf;
    }
    bool check(ll a,ll b,ll c){
        if((a+c)<=0 && (b+c)<=0)
            return 0;
        return 1;
    }
    void add(int l,int r,int x,int t,int v,int tl,int tr){
        if(tl>r||tr<l) return;
//        push(v,tl,tr);
        if(tl>=l&&tr<=r&&check(tt[v].x,tt[v].y,x)){
            if((tt[v].x+x)<=0){
                p2[v]=(p2[v]==-inf?tt[v].x:p2[v]);
                umax(p3[v],t);
            }
            tt[v].x+=x;tt[v].y+=x;
            p1[v]+=x;umax(tt[v].x,0LL);
            p4[v]=tt[v].x;
            return;
        }
        int tm=(tl+tr)>>1;push(v,tl,tr);
        add(l,r,x,t,v<<1,tl,tm);add(l,r,x,t,v<<1|1,tm+1,tr);
        tt[v]=mg(tt[2*v],tt[2*v+1]);
    }
    int get(int i,int v,int tl,int tr){
        if(tl==tr)
            return p3[v];
        int tm=(tl+tr)>>1;push(v,tl,tr);
        if(tm>=i)
            return get(i,v<<1,tl,tm);
        else
            return get(i,v<<1|1,tm+1,tr);
    }
}sega1;
signed main(){
    fast_prep;
    int n,m,q;
    cin>>n>>m>>q;
    fenwick fen;
    vec<int> tl(q),tr(q);
    vec<int> t(q),l(q),r(q),c(q);
    vec<ll> k(q);
    vec<int> ask;
    vec<ll> rl(q);

    vec<ll> toadd(q);
    vec<vec<int>> need(q,vec<int>());
    for(int i=0;i<q;i++){
        cin>>t[i];
        if(t[i]==1){
            cin>>l[i]>>r[i]>>c[i]>>k[i];
            --l[i];--r[i];
            sega1.add(l[i],r[i],k[i],i,1,0,n-1);
        }
        else if(t[i]==2){
            cin>>l[i]>>r[i]>>k[i];
            --l[i];--r[i];
            fen.add(l[i],r[i],k[i]);
            sega1.add(l[i],r[i],-k[i],i,1,0,n-1);
        }
        else{
            ask.pb(i);
            cin>>l[i]>>k[i];
            --l[i];
            rl[i]=fen.get(l[i])+k[i];
//            cerr<<"ALO "<<
//            cerr<<"WO "<<sega.get(l[i],1,0,n-1);
            tl[i]=sega1.get(l[i],1,0,n-1)+1;tr[i]=i;
//            cout<<"ALO "<<tl[i]<<endl;
            if(tl[i]!=0) need[tl[i]-1].pb(i);
        }
    }
    {
        fen.reset();
        for(int i=0;i<q;i++){
            if(t[i]==1) fen.add(l[i],r[i],k[i]);
            else if(t[i]==2) fen.add(l[i],r[i],-k[i]);
            for(auto &j : need[i]){
                toadd[j]=-fen.get(l[j]);
            }
        }
    }
    if(m==1){
        fen.reset();
        for(int i=0;i<q;i++){
            if(t[i]==1) fen.add(l[i],r[i],k[i]);
            else if(t[i]==3){
                if((fen.get(l[i])+toadd[i])>=rl[i]){
                    cout<<1<<'\n';
                }
                else{
                    cout<<0<<'\n';
                }
            }
        }
        return 0;
    }
    int ok=1;
    while(ok){
        ok=0;
        fen.reset();
        vec<vec<int>> toask(q,vec<int>());
        ///just an id
        for(auto &i : ask){
            if(tl[i]!=tr[i]){
                int tm=(tl[i]+tr[i])>>1;
//                cout<<"HEYASK "<<i<<' '<<tl[i]<<' '<<tr[i]<<' '<<tm<<endl;
                ok=1;
                toask[tm].pb(i);
            }
        }
        if(!ok) break;
        for(int i=0;i<q;i++){
            if(t[i]==1){
                fen.add(l[i],r[i],k[i]);
            }
//            cout<<"I "<<i<<endl;
            for(auto &j : toask[i]){
                ll have=fen.get(l[j])+toadd[j];
//                cout<<"YO "<<c[i]<<' '<<j<<' '<<have<<' '<<rl[j]<<endl;
                if(have>=rl[j]){
                    tr[j]=i;
                }
                else{
                    tl[j]=i+1;
                }
            }
        }
    }
    for(auto &i : ask){
        cout<<(tl[i]==i?0:c[tl[i]])<<'\n';
    }
    return 0;
}
/*
3 5 5
1 2 3 5 2
1 1 2 2 4
2 1 3 3
1 2 3 4 2
3 3 2

3 5 5
1 2 3 5 2
1 1 2 2 4
2 1 3 3
3 1 2
1 2 3 4 2

*/
# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 54484 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 54484 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 174 ms 61308 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 664 ms 71576 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 54484 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 183 ms 60764 KB Output is correct
2 Correct 205 ms 61428 KB Output is correct
3 Correct 186 ms 61504 KB Output is correct
4 Correct 142 ms 59336 KB Output is correct
5 Correct 163 ms 60564 KB Output is correct
6 Correct 175 ms 61532 KB Output is correct
7 Correct 136 ms 60856 KB Output is correct
8 Correct 161 ms 60244 KB Output is correct
9 Correct 148 ms 61496 KB Output is correct
10 Correct 137 ms 59196 KB Output is correct
11 Correct 199 ms 61412 KB Output is correct
12 Correct 190 ms 61532 KB Output is correct
# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 54484 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 54484 KB Output isn't correct
2 Halted 0 ms 0 KB -