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Submission #538707

# Submission time Handle Problem Language Result Execution time Memory
538707 2022-03-17T14:57:21 Z Jasiekstrz Speedrun (RMI21_speedrun) C++17
100 / 100
 197 ms 844 KB 
#include<bits/stdc++.h>
#include "speedrun.h"
using namespace std;
const int NN=1e3;
const int L=20;

vector<int> e[NN+10];
vector<int> pre,par;
void encode(int x,int c1,int c2)
{
	int c=(c1<<10)+c2;
	for(int i=1;i<=20;i++)
	{
		setHint(x,i,c%2);
		c/=2;
	}
	return;
}
void dfs(int x,int p)
{
	pre.push_back(x);
	par.push_back(p);
	for(auto v:e[x])
	{
		if(v!=p)
			dfs(v,x);
	}
	return;
}
void assignHints(int subtask, int N, int A[], int B[])
{
	setHintLen(L);
	for(int i=1;i<N;i++)
	{
		e[A[i]].push_back(B[i]);
		e[B[i]].push_back(A[i]);
	}
	dfs(1,0);
	pre.push_back(pre[0]);
	for(int i=0;i<N;i++)
		encode(pre[i],pre[i+1],par[i]);
	return;
}

pair<int,int> decode(int x)
{
	int ans=0;
	for(int i=20;i>=1;i--)
		ans=2*ans+getHint(i);
	return {(ans>>10),ans%(1<<10)};
}
void speedrun(int subtask, int N, int start)
{
	int x=start;
	while(x!=1)
	{
		x=decode(x).second;
		goTo(x);
	}
	for(int i=1;i<=N;i++)
	{
		int y=decode(x).first;
		while(!goTo(y))
		{
			x=decode(x).second;
			goTo(x);
		}
	}
	return;
}

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 138 ms 760 KB Output is correct
2 Correct 120 ms 672 KB Output is correct
3 Correct 185 ms 708 KB Output is correct
4 Correct 185 ms 724 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 187 ms 672 KB Output is correct
2 Correct 175 ms 672 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 165 ms 672 KB Output is correct
2 Correct 136 ms 712 KB Output is correct
3 Correct 166 ms 712 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 191 ms 700 KB Output is correct
2 Correct 173 ms 820 KB Output is correct
3 Correct 166 ms 720 KB Output is correct
4 Correct 177 ms 712 KB Output is correct
5 Correct 183 ms 736 KB Output is correct
6 Correct 148 ms 708 KB Output is correct

Subtask #5
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 152 ms 844 KB Output is correct
2 Correct 160 ms 708 KB Output is correct
3 Correct 138 ms 748 KB Output is correct
4 Correct 197 ms 720 KB Output is correct
5 Correct 183 ms 836 KB Output is correct
6 Correct 91 ms 820 KB Output is correct
7 Correct 160 ms 672 KB Output is correct