Submission #401602

#	Time	Username	Problem	Language	Result	Execution time	Memory
401602		Jarif_Rahman	Food Court (JOI21_foodcourt)	C++17	21 / 100	678 ms	31488 KiB

foodcourt

#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;
const ll inf = 1e16+1;
struct segtree_beats{
    struct node{
        ll mn[2], cnt[2];
        ll sm, lazy_add;
        node(){
            mn[0] = 0, mn[1] = inf;
            cnt[0] = 1, cnt[1] = 0;
            sm = 0;
            lazy_add = 0;
        }
        node operator+(node a){
            node rt;
            if(mn[0] < a.mn[0]){
                rt.mn[0] = mn[0], rt.cnt[0] = cnt[0];
                if(mn[1] < a.mn[0]) rt.mn[1] = mn[1], rt.cnt[1] = cnt[1];
                else if(mn[1] > a.mn[0]) rt.mn[1] = a.mn[0], rt.cnt[1] = a.cnt[0];
                else rt.mn[1] = mn[1], rt.cnt[1] = cnt[1]+a.cnt[0];
            }
            else if(mn[0] > a.mn[0]){
                rt.mn[0] = a.mn[0], rt.cnt[0] = a.cnt[0];
                if(mn[0] < a.mn[1]) rt.mn[1] = mn[0], rt.cnt[1] = cnt[0];
                else if(mn[0] > a.mn[1]) rt.mn[1] = a.mn[1], rt.cnt[1] = a.cnt[1];
                else rt.mn[1] = mn[0], rt.cnt[1] = cnt[0]+a.cnt[1];
            }
            else{
                rt.mn[0] = mn[0], rt.cnt[0] = cnt[0]+a.cnt[0];
                if(mn[1] < a.mn[1]) rt.mn[1] = mn[1], rt.cnt[1] = cnt[1];
                else if(mn[1] > a.mn[1]) rt.mn[1] = a.mn[1], rt.cnt[1] = a.cnt[1];
                else rt.mn[1] = mn[1], rt.cnt[1] = cnt[1]+a.cnt[1];
            }
            rt.sm = sm+a.sm;
            return rt;
        }
        void propagate(node nd, int sz){
            lazy_add+=nd.lazy_add;
            sm+=nd.lazy_add*sz;
            mn[0]+=nd.lazy_add;
            if(mn[1] != inf) mn[1]+=nd.lazy_add;
            if(nd.mn[0] <= mn[0]) return;
            sm+=(nd.mn[0]-mn[0])*sz;
            mn[0] = nd.mn[0];
        }
    };
    int k;
    vector<node> v;
    segtree_beats(int n){
        k = 1;
        while(k < n) k*=2;
        k*=2;
        v.resize(k, node());
        for(int i = k/2-1; i > 0; i--) v[i] = v[2*i]+v[2*i+1];
    }
    void add(int l, int r, int nd, int a, int b, ll x){
        if(a > r || b < l){
            return;
        }
        if(a >= l && b <= r){
            node nd0;
            nd0.lazy_add = x;
            nd0.mn[0] = -inf+1;
            v[nd].propagate(nd0, b-a+1);
            return;
        }
        int md = (a+b)/2;
        v[2*nd].propagate(v[nd], md-a+1);
        v[2*nd+1].propagate(v[nd], b-md);
        v[nd].lazy_add = 0;
        add(l, r, 2*nd, a, md, x);
        add(l, r, 2*nd+1, md+1, b, x);
        v[nd] = v[2*nd]+v[2*nd+1];
    }
    void add(int l, int r, ll x){
        add(l, r, 1, 0, k/2-1, x);
    }
    void chmx(int l, int r, int nd, int a, int b, ll x){
        if(a > r || b < l || v[nd].mn[0] >= x){
            return;
        }
        if(a >= l && b <= r && v[nd].mn[1] > x){
            node nd0;
            nd0.mn[0] = x;
            v[nd].propagate(nd0, b-a+1);
            return;
        }
        int md = (a+b)/2;
        v[2*nd].propagate(v[nd], md-a+1);
        v[2*nd+1].propagate(v[nd], b-md);
        v[nd].lazy_add = 0;
        chmx(l, r, 2*nd, a, md, x);
        chmx(l, r, 2*nd+1, md+1, b, x);
        v[nd] = v[2*nd]+v[2*nd+1];
    }
    void chmx(int l, int r, ll x){
        chmx(l, r, 1, 0, k/2-1, x);
    }
    ll sum(int l, int r, int nd, int a, int b){
        if(a > r || b < l){
            return 0;
        }
        if(a >= l && b <= r){
            return v[nd].sm;
        }
        int md = (a+b)/2;
        v[2*nd].propagate(v[nd], md-a+1);
        v[2*nd+1].propagate(v[nd], b-md);
        v[nd].lazy_add = 0;
        ll rt = sum(l, r, 2*nd, a, md) + sum(l, r, 2*nd+1, md+1, b);
        v[nd] = v[2*nd]+v[2*nd+1];
        return rt;
    }
    ll sum(int l, int r){
        return sum(l, r, 1, 0, k/2-1);
    }
};
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, m, q; cin >> n >> m >> q;
    segtree_beats beats(n);
    while(q--){
        int tt; cin >> tt;
        if(tt == 1){
            int l, r, c; ll k; cin >> l >> r >> c >> k; l--, r--;
            beats.add(l, r, k);
        }
        else if(tt == 2){
            int l, r; ll k; cin >> l >> r >> k; l--, r--;
            beats.add(l, r, -k);
            beats.chmx(l, r, 0LL);
        }
        else{
            int a; ll b; cin >> a >> b; a--;
            cout << (beats.sum(a, a) >= b ? 1:0) << "\n";
        }
    }
}

• Subtask 1: 0 / 2
• Subtask 2: 0 / 5
• Subtask 3: 0 / 7
• Subtask 4: 21 / 21
• Subtask 5: 0 / 15
• Subtask 6: 0 / 13
• Subtask 7: 0 / 26
• Subtask 8: 0 / 11