Submission #927683

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
927683	2024-02-15 08:37:19	12345678	Spring cleaning (CEOI20_cleaning)	C++17	28 / 100	171 ms	21400 KiB

cleaning

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#include <bits/stdc++.h>
using namespace std;
const int nx=1e5+5;
int n, q, dp[nx], sz[nx], id[nx], pa[nx], hd[nx], t, u, v, rt, vs[nx], k[nx];
vector<int> d[nx];
struct segtree
{
    int a[4*nx], b[4*nx], lz[4*nx];
    void pushlz(int l, int r, int i)
    {
        if (!lz[i]) return;
        lz[i]=0;
        swap(a[i], b[i]);
        if (l!=r) lz[2*i]=!lz[2*i], lz[2*i+1]=!lz[2*i+1];        
    }
    void build(int l, int r, int i)
    {
        if (l==r)
        {
            if (k[l]==1) a[i]++;
            else b[i]++;
            return;
        }
        int md=(l+r)/2;
        build(l, md, 2*i);
        build(md+1, r, 2*i+1);
        a[i]=a[2*i]+a[2*i+1];
 
 
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• Subtask 5: 19 / 19
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