Submission #933575

#	Time	Username	Problem	Language	Result	Execution time	Memory
933575		vjudge1	Speedrun (RMI21_speedrun)	C++17	Compilation error	0 ms	0 KiB

speedrun

// Problem: B - Speedrun
// Contest: Virtual Judge - PES segundo examen de práctica febrero 2024
// URL: https://vjudge.net/contest/612265#problem/B
// Memory Limit: 512 MB
// Time Limit: 3500 ms
// Start: 25-02-2024 15:56:28

#include <bits/stdc++.h>
using namespace std;

using ll  = long long;
using ull = unsigned long long;
using pll = pair<ll, ll>;

#define gcd(x, y) __gcd(x, y)
#define mcm(x, y) abs((x) * (y)) / gcd(x, y)
#define all(x)    begin(x), end(x)
#define pb(x)     push_back(x)
#define endl      '\n'

#ifdef DEBUG
int A[] = {0, 1, 2, 3, 3}, B[] = {0, 2, 3, 4, 5};
int N     = 5;
int start = 1;

ll   LEN;
bool hints[500][500] = {{}};
ll   currNode        = start;

void setHintLen(int l) { LEN = l; };
void setHint(int i, int j, bool b) { hints[i][j] = b; };
int  getLength() { return LEN; };
bool getHint(int j) { return hints[currNode][j]; };
bool goTo(int x) {
	for (int i = 1; i < N; i++) {
		ll a = A[i], b = B[i];
		if ((a == currNode && b == x) || (a == x && b == currNode)) {
			currNode = x;
			cout << currNode << ' ';
			return true;
		}
	}
	return false;
};
#endif

void assignHints(int subtask, int N, int A[], int B[]) {
	if (subtask != 1) return;

	setHintLen(N);

	vector<vector<ll>> g(N + 1);
	for (int i = 1; i < N; i++) {
		g[A[i]].pb(B[i]);
		g[B[i]].pb(A[i]);
	}

	for (int i = 1; i <= N; i++)
		for (ll& nei : g[i]) setHint(i, nei, 1);
}

void speedrun(int substask, int N, int start) {
	stack<pll> st;
	st.push({start, -1});

	while (st.size()) {
		pll curr = st.top();
		st.pop();
		goTo(curr.first);

		bool added = false;

		for (int i = 1; i <= N; i++) {
			bool connected = getHint(i);

			if (!connected) continue;

			if (i == curr.second) continue;

			added = true;
			st.push({i, curr.first});
		}

		if (!added && curr.first != start) goTo(curr.second);
	}
}
#ifdef DEBUG
int main() {
	cout << start << ' ';
	assignHints(1, N, A, B);
	speedrun(1, N, start);

	cout << currNode;
}
#endif

Compilation message (stderr)

speedrun.cpp: In function 'void assignHints(int, int, int*, int*)':
speedrun.cpp:50:2: error: 'setHintLen' was not declared in this scope
   50 |  setHintLen(N);
      |  ^~~~~~~~~~
speedrun.cpp:59:24: error: 'setHint' was not declared in this scope; did you mean 'setns'?
   59 |   for (ll& nei : g[i]) setHint(i, nei, 1);
      |                        ^~~~~~~
      |                        setns
speedrun.cpp: In function 'void speedrun(int, int, int)':
speedrun.cpp:69:3: error: 'goTo' was not declared in this scope
   69 |   goTo(curr.first);
      |   ^~~~
speedrun.cpp:74:21: error: 'getHint' was not declared in this scope; did you mean 'getline'?
   74 |    bool connected = getHint(i);
      |                     ^~~~~~~
      |                     getline