Submission #602406

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
602406	2022-07-23 04:13:13	Hanksburger	Sterilizing Spray (JOI15_sterilizing)	C++17	5 / 100	5082 ms	110344 KiB

sterilizing

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#include <bits/stdc++.h>
using namespace std;
long long seg[400005], a[100005];
set<int> s[400005], t;
int n, q, k;
void build(int i, int l, int r)
{
    if (l==r)
    {
        seg[i]=a[l];
        if (a[l])
            s[i].insert(l);
        return;
    }
    int mid=(l+r)/2;
    build(i*2, l, mid);
    build(i*2+1, mid+1, r);
    seg[i]=seg[i*2]+seg[i*2+1];
    s[i].insert(s[i*2].begin(), s[i*2].end());
    s[i].insert(s[i*2+1].begin(), s[i*2+1].end());
}
void update(int i, int l, int r, int y, int z)
{
    if (l==r)
    {
        seg[i]=a[y]=z;
        s[i].erase(y);
        if (z)
            s[i].insert(y);
        return;
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 75