Submission #1083011

#	Time	Username	Problem	Language	Result	Execution time	Memory
1083011		djs100201	September (APIO24_september)	C++17	100 / 100	175 ms	24180 KiB

september

#include <bits/stdc++.h>
// #include "september.h"
#define all(v) v.begin(), v.end()
using namespace std;
using ll = long long;
using P = pair<ll, ll>;
using PP = pair<ll, P>;
const ll n_ = 1e5 + 10, inf = (ll)2e9 * (ll)1e9 + 7, mod = 998244353;
ll n, m, tc = 1, a, b, c, d, sum, x, y, z, base, ans, k;
ll par[n_], mx[n_], L[n_], R[n_];
vector<ll> v[n_];
void dfs(ll x)
{
	for (auto nxt : v[x])
	{
		dfs(nxt);
		R[x] = max(R[x], R[nxt]);
	}
}
int solve(int N, int M, vector<int> F, vector<vector<int>> S)
{
	n = N - 1, m = M;
	vector<ll> T;
	for (int i = 0; i <= n; i++)
		L[i] = inf, R[i] = -inf;
	for (int j = 0; j < m; j++)
		for (int i = 0; i < n; i++)
		{
			ll val = S[j][i];
			L[val] = min(L[val], (ll)i);
			R[val] = max(R[val], (ll)i);
		}
	for (int i = 1; i <= n; i++)
		v[F[i]].push_back(i);
	dfs(0);
	vector<P> V;
	for(int i=0;i<=n;i++)v[i].clear();
	for (int i = 1; i <= n; i++)
		V.push_back({L[i], R[i]});
	sort(all(V));
	ll lim = -inf, ret = 0;
	for (auto [a, b] : V)
	{
		if (lim < a)
		{
			ret++;
			lim = b;
		}
		else
			lim = max(lim, b);
	}
	return ret;
}

• Subtask 1: 11 / 11
• Subtask 2: 14 / 14
• Subtask 3: 5 / 5
• Subtask 4: 9 / 9
• Subtask 5: 5 / 5
• Subtask 6: 11 / 11
• Subtask 7: 9 / 9
• Subtask 8: 11 / 11
• Subtask 9: 9 / 9
• Subtask 10: 16 / 16