Submission #152862

# Submission time Handle Problem Language Result Execution time Memory
152862 2019-09-10T09:13:00 Z tinjyu Split the Attractions (IOI19_split) C++14
22 / 100
70 ms 11532 KB
#include "split.h"
#include <iostream>
#include <stdio.h>
using namespace std;
long long int can=0,ans[100005],f[100005],s,e,stop,a[2],b[2],c[2],sum[100005],t[100005],n,m,road[100005],map[1000005][2],tag[100005];
int buildp(int x,int father)
{
	tag[x]=1;
	f[x]=father;
	sum[x]=1;
	int g=road[x];
	while(g!=-1)
	{
		int now=map[g][0];
		if(tag[now]==0)sum[x]+=buildp(now,x);
		g=map[g][1];
	}
	return sum[x];
}
int color(int x,int col)
{
	if(s==e)return 0;
	s++;
	ans[x]=col;
	int g=road[x];
	while(g!=-1)
	{
		if(s==e)return 0;
		int now=map[g][0];
		if(now!=f[x] && now!=stop)color(now,col);
		g=map[g][1];
	}
}
int find(int x,int father)
{
	if(sum[x]>=a[0] && father>=b[0])
	{	
		can=1;
		stop=f[x];
		s=0;
		e=a[0];
		color(x,a[1]);
		stop=x;
		s=0;
		e=b[0];
		color(0,b[1]);
		return 0;
	}
	if(father>=a[0] && sum[x]>=b[0])
	{
		can=1;
		stop=x;
		s=0;
		e=a[0];
		color(0,a[1]);
		stop=f[x];
		s=0;
		e=b[0];
		color(x,b[1]);
		return 0;
	}
	int g=road[x];
	while(g!=-1)
	{
		int now=map[g][0];
		if(now!=f[x])find(now,father+(sum[x]-sum[now]));
		if(can==1)return 0;
		g=map[g][1];
	}
}
 
vector<int> find_split(int N, int A, int B, int C, vector<int> p, vector<int> q) {
	a[0]=A;
	a[1]=1;
	b[0]=B;
	b[1]=2;
	c[0]=C;
	c[1]=3;
	if(b[0]<=a[0] && b[0]<=c[0])
	{
		swap(a[0],b[0]);
		swap(a[1],b[1]);
	}
	if(c[0]<=b[0] && c[0]<=a[0])
	{
		swap(a[0],c[0]);
		swap(a[1],c[1]);
	}
	if(c[0]<=b[0])
	{
		swap(b[0],c[0]);
		swap(b[1],c[1]);
	}
 
	n=N;
	m=q.size();
	for(int i=0;i<=n;i++)road[i]=-1;
	for(int i=0;i<m;i++)
	{
		map[i*2][0]=p[i];
		map[i*2][1]=road[q[i]];
		road[q[i]]=i*2;
		map[i*2+1][0]=q[i];
		map[i*2+1][1]=road[p[i]];
		road[p[i]]=i*2+1;
	}
	int cnt=0;
	int st=0,en=0;
	t[0]=3;
	tag[3]=1;
	while(st<=en)
	{
		int x=t[st];
		int g=road[x];
		while(g!=-1)
		{
			int now=map[g][0];
			if(tag[now]==0)
			{
				en++;
				p[cnt]=x;
				q[cnt]=now;
				cnt++;
				t[en]=now;
				tag[now]=1;
			}
			g=map[g][1];
		}
		st++;
	}
	for(int i=0;i<=n;i++)
	{
		road[i]=-1;
		tag[i]=0;
	}
	for(int i=0;i<cnt;i++)
	{
		map[i*2][0]=p[i];
		map[i*2][1]=road[q[i]];
		road[q[i]]=i*2;
		map[i*2+1][0]=q[i];
		map[i*2+1][1]=road[p[i]];
		road[p[i]]=i*2+1;
	}
	buildp(0,-1);
	find(0,0);
	vector<int> res(n);
	if(can==0)return res;
	for(int i=0;i<n;i++)
	{
		res[i]=ans[i];
		if(res[i]==0)res[i]=c[1];
	} 
	return res;
}

Compilation message

split.cpp: In function 'int color(int, int)':
split.cpp:33:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
split.cpp: In function 'int find(int, int)':
split.cpp:70:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB jury found a solution, contestant did not
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB jury found a solution, contestant did not
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB ok, correct split
2 Correct 67 ms 10092 KB ok, correct split
3 Correct 25 ms 4216 KB ok, correct split
4 Correct 2 ms 376 KB ok, correct split
5 Correct 70 ms 11092 KB ok, correct split
6 Correct 69 ms 11000 KB ok, correct split
7 Correct 65 ms 11000 KB ok, correct split
8 Correct 69 ms 11532 KB ok, correct split
9 Correct 67 ms 11012 KB ok, correct split
10 Correct 22 ms 3320 KB ok, no valid answer
11 Correct 33 ms 4856 KB ok, no valid answer
12 Correct 58 ms 9336 KB ok, no valid answer
13 Correct 68 ms 9392 KB ok, no valid answer
14 Correct 53 ms 9336 KB ok, no valid answer
# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB ok, correct split
2 Correct 2 ms 376 KB ok, no valid answer
3 Incorrect 2 ms 376 KB jury found a solution, contestant did not
4 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB jury found a solution, contestant did not
2 Halted 0 ms 0 KB -