Submission #1292770

#	Time	Username	Problem	Language	Result	Execution time	Memory
1292770		kahoul	Stations (IOI20_stations)	C++20	Compilation error	0 ms	0 KiB

stations

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

const int maxn = 1003;
vector<int> rel[maxn];
int in[maxn];
int out[maxn];

int t = 0;

void dfs (int u, int p) {
	in[u] = t++;
	for (auto v : rel[u]) {
		if ( v== p) continue;
		dfs(v,u );
	}
	out[u] = t;
}

vector<int> label(int n, int k, vector<int> u, vector<int> v) {
	for (int i = 0; i < n; i++) {
		rel[i].clear();
	}

	vector<int> labels(n, -1);
	dfs(0, 0);

	for (int i = 0; i < n; i++) {
		labels[i] = in[i] << 10 + out[i];
	}

	return labels;
}

typedef pair<int, int> pii;

pii find (int x) {
	return {s >> 10, s & ((1 << 11) - 1)};
}

int find_next_station(int u, int t, vector<int> adj) {
	auto [in, out] = find(s);
	auto [tin, tout] = find(t);

	int parent = 0;
	for (auto v : adj) {
		auto [vin, vout] = find(v);
		if (vin <= in && out <= vout) continue;
		else if (vin <= tin && tout <= vout) return v;
	}

	return u;
}

Compilation message (stderr)

stations.cpp: In function 'pii find(int)':
stations.cpp:39:17: error: 's' was not declared in this scope
   39 |         return {s >> 10, s & ((1 << 11) - 1)};
      |                 ^
stations.cpp:39:45: error: could not convert '{<expression error>, <expression error>}' from '<brace-enclosed initializer list>' to 'pii' {aka 'std::pair<int, int>'}
   39 |         return {s >> 10, s & ((1 << 11) - 1)};
      |                                             ^
      |                                             |
      |                                             <brace-enclosed initializer list>
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:43:31: error: 's' was not declared in this scope
   43 |         auto [in, out] = find(s);
      |                               ^