Submission #493075

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
493075	2021-12-10 04:40:07	qwerasdfzxcl	Distributing Candies (IOI21_candies)	C++17	100 / 100	714 ms	47240 KiB

candies

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#include "candies.h"
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
const ll INF = 1e18;
struct Seg{
    pair<ll, ll> tree[800800];
    ll lazy[800800];
    pair<ll, ll> combine(pair<ll, ll> x, pair<ll, ll> y){
        return pair<ll, ll>(max(x.first, y.first), min(x.second, y.second));
    }
    void propagate(int i, int l, int r){
        tree[i].first += lazy[i];
        tree[i].second += lazy[i];
        if (l!=r) lazy[i<<1] += lazy[i], lazy[i<<1|1] += lazy[i];
        lazy[i] = 0;
    }
    void update(int i, int l, int r, int s, int e, ll x){
        propagate(i, l, r);
        if (r<s || e<l) return;
        if (s<=l && r<=e){
            lazy[i] += x;
            propagate(i, l, r);
            return;
        }
        int m = (l+r)>>1;
        update(i<<1, l, m, s, e, x);
        update(i<<1|1, m+1, r, s, e, x);
        tree[i] = combine(tree[i<<1], tree[i<<1|1]);
 
 
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• Subtask 1: 3 / 3
• Subtask 2: 8 / 8
• Subtask 3: 27 / 27
• Subtask 4: 29 / 29
• Subtask 5: 33 / 33