Submission #598680

#	Time	Username	Problem	Language	Result	Execution time	Memory
598680		kingfran1907	Speedrun (RMI21_speedrun)	C++14	100 / 100	280 ms	972 KiB

speedrun

#include "speedrun.h"
#include <bits/stdc++.h>

using namespace std;
const int maxn = 1010;

vector< int > graph[maxn];
vector< int > sol;
bool bio[maxn];
int parr[maxn];

void dfs(int x, int parr) {
	sol.push_back(x);
	::parr[x] = parr;
	for (int tren : graph[x]) {
		if (tren != parr) dfs(tren, x);
	}
}

void assignHints(int subtask, int N, int A[], int B[]) {
	for (int i = 1; i < N; i++) {
		graph[A[i]].push_back(B[i]);
		graph[B[i]].push_back(A[i]);
	}
	dfs(1, 0);

	setHintLen(20);
	for (int i = 0; i < sol.size(); i++) {
		int tren = sol[i];
		int r = sol[(i + 1) % sol.size()];
		int par = parr[tren];

		for (int i = 0; i < 10; i++) 
			setHint(tren, i + 1, r & (1 << i));
		for (int i = 0; i < 10; i++)
			setHint(tren, i + 11, par & (1 << i));
	}
}

void speedrun(int subtask, int N, int start) {
	memset(bio, false, sizeof bio);
	bio[start] = true;

	for (int t = 1; t < N; t++) {
		int nex = 0;
		for (int i = 0; i < 10; i++)
			nex |= getHint(i + 1) << i;
		while (!goTo(nex)) {
			int parr = 0;
			for (int i = 0; i < 10; i++)
				parr |= (getHint(i + 11) << i);
			assert(goTo(parr));
			start = parr;
		}
		start = nex;
	}
}

Compilation message (stderr)

speedrun.cpp: In function 'void assignHints(int, int, int*, int*)':
speedrun.cpp:28:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |  for (int i = 0; i < sol.size(); i++) {
      |                  ~~^~~~~~~~~~~~

• Subtask 1: 21 / 21
• Subtask 2: 8 / 8
• Subtask 3: 19 / 19
• Subtask 4: 12 / 12
• Subtask 5: 40 / 40