oj.uz

Submission #244982

# Submission time Handle Problem Language Result Execution time Memory
244982 2020-07-05T10:38:13 Z crossing0ver Split the Attractions (IOI19_split) C++17
11 / 100
 758 ms 1048580 KB 
#include<bits/stdc++.h>
#define vi vector<int>
#define pb push_back
#define local
#ifndef local
#include "split.h"
#endif
using namespace std;
const int MXN = 1e5 +5; 
int n,a,b,c,m;
vector<int> adj[MXN];
vi case1() {
	vector<bool> vis(n);
	vis[0] = 1;
	queue<int> q;
	set<int> sec;
	int cnt = b;
	q.push(0);
	while(!q.empty() && cnt) {
		cnt--;
		int v = q.front();
		sec.insert(v);
		q.pop();
		for (int i :adj[v]) {
			if (!vis[i]) {
				vis[i] = 1;
				q.push(i);
			}
		}
	}
	vector<int> ans(n);
	for (int i : sec) ans[i] = 2;
	for (int i = 0,flag = 0; i < n; i++) {
		if (sec.count(i)) continue;
		if (flag == 0) flag = 1, ans[i] = 1;
		else ans[i] = 3;
	} 
	return ans;
}

int sz[MXN],flag,X[4],mn;
set<int> ans[4];
void dfs(int v,int p,int type) {
	if (type == 1 && X[flag]) {
		X[flag]--;
		ans[flag].insert(v);
	}
	sz[v] = 1;
	for (int i : adj[v]) {
		if (i == p) continue;
		dfs(i,v,type);
		sz[v] += sz[i];
	}
	if (flag) return;
	if (sz[v] >= a && n - sz[v] >= min(b,c)) {
		flag = 1;
		if (n - sz[v] >= b) mn = 2;
		else mn = 3;
	}
	else if (sz[v] >= b && n - sz[v] >= min(a,c)) {
		flag = 2;
		if (n - sz[v] >= a) mn = 1;
		else mn = 3;
	}
	else if (sz[v] >= c && n - sz[v] >= min(a,b)) {
		flag = 3;
		if (n - sz[v] >= a) mn = 1;
		else mn = 2;
	}
	dfs(v,p,1);
	flag = mn;
	dfs(p,v,1);
}
vector<int> find_split(int n1, int a1, int b1, int c1, vector<int> p, vector<int> q) {
	n = n1,a = a1,b=b1,c=c1;
	X[1] = a,X[2] = b, X[3] = c;
	m = p.size();
	for (int i = 0;i < m; i++) {
		adj[p[i]].pb(q[i]);
		adj[q[i]].pb(p[i]);
	}
	if (a == 1) return case1();
	dfs(0,-1,0);
	vector<int> res(n),vis(n);
	if (flag == 0) return res;
	for (int j = 1; j <= 3; j++)
	for (int i : ans[j]) res[i] = j,vis[i] = 1;
	
	int id;
	for (int i = 1; i <= 3; i++) if (ans[i].empty()) id = i;
	for (int i = 0; i < n; i++) if (!vis[i]) res[i] = id;
	return res;
}

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 2688 KB ok, correct split
2 Correct 6 ms 2688 KB ok, correct split
3 Correct 6 ms 2688 KB ok, correct split
4 Runtime error 630 ms 1048580 KB Execution killed with signal 9 (could be triggered by violating memory limits)
5 Halted 0 ms 0 KB -

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2688 KB ok, correct split
2 Correct 6 ms 2688 KB ok, correct split
3 Correct 6 ms 2688 KB ok, correct split
4 Correct 88 ms 9208 KB ok, correct split
5 Correct 101 ms 10616 KB ok, correct split
6 Correct 68 ms 8056 KB ok, correct split
7 Correct 103 ms 10488 KB ok, correct split
8 Correct 127 ms 12024 KB ok, correct split
9 Correct 98 ms 10104 KB ok, correct split
10 Correct 84 ms 10992 KB ok, correct split
11 Correct 89 ms 10996 KB ok, correct split
12 Correct 83 ms 10992 KB ok, correct split

Subtask #3
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2688 KB ok, correct split
2 Runtime error 758 ms 1048580 KB Execution killed with signal 9 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Runtime error 652 ms 1048580 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 2688 KB ok, correct split
2 Correct 6 ms 2688 KB ok, correct split
3 Correct 6 ms 2688 KB ok, correct split
4 Runtime error 630 ms 1048580 KB Execution killed with signal 9 (could be triggered by violating memory limits)
5 Halted 0 ms 0 KB -