Submission #674299

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
674299	2022-12-23 16:44:07	lam	Race (IOI11_race)	C++14	100 / 100	1781 ms	75872 KiB

race

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#include <bits/stdc++.h>
using namespace std;
typedef pair<long long,long long> ii;
#define ff first
#define ss second
const long long maxn = 1e6 + 10;
map<long long,long long> mp;
long long n;
long long k;
vector <ii> adj[maxn];
long long s[maxn],dau[maxn];
long long ans = 1e9;
long long get_sz(long long x, long long p)
{
    s[x]=1;
    for (ii i:adj[x])
        if (i.ff!=p&&!dau[i.ff]) s[x]+=get_sz(i.ff,x);
    return s[x];
}
long long find_centroid(long long x, long long p, long long sz)
{
    for (ii i:adj[x])
        if (i.ff!=p&&!dau[i.ff]&&s[i.ff]*2>sz) return find_centroid(i.ff,x,sz);
    return x;
}
void dfs(long long x, long long p, long long val, long long depth)
{
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57