Submission #1159287

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1159287	2025-02-28 10:09:37	arkanefury	Spring cleaning (CEOI20_cleaning)	C++20	0 / 100	1098 ms	37940 KiB

cleaning

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#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define in insert
#define lb lower_bound
#define F first
#define S second
#define sz size()
#define int long long
#define all(v) v.begin(),v.end()
#define FOR1(x, n) for(int j = x; j <= n; j ++)
#define FOR(x, n, m, d) for(int x = n; x <= m; x += d)
#define FORR(x, n, m, d) for(int x = n; x >= m; x -= d)
#define nikita ios_base::sync_with_stdio(0), cin.tie(0);
const int N =  1e6+5, M = 210;
int a[N], b[N], pref[N], d[N], c[N], t[N];
int n,m,k,sum=0,x,y, ans, r, cnt, l,inf = -1e18, dist[N], par[N];
string s, str;
vector<int>g[N];
bool f = 0;
void dfs(int v, int p = 0){
    for(auto i : g[v]){
        if(i != p)dfs(i, v);
    }
    sum = 0;
    for(auto i : g[v]){
        if(i != p)sum += d[i];
    }
    ans += sum;
    if(sum % 2 || g[v].sz == 1)d[v] = 1;
 
 
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• Subtask 1: 0 / 0
• Subtask 2: 0 / 9
• Subtask 3: 0 / 9
• Subtask 4: 0 / 16
• Subtask 5: 0 / 19
• Subtask 6: 0 / 17
• Subtask 7: 0 / 30