Submission #290554

#	Time	Username	Problem	Language	Result	Execution time	Memory
290554		jairRS	Split the Attractions (IOI19_split)	C++17	Compilation error	0 ms	0 KiB

split

#include "split.h"
typedef vector<int> vi;
typedef vector<vi> vvi;
using namespace std;

vvi adj;
vi degree;
int ga, gb, gc;

void dfs(int src, int prev = -1)
{
	if (gc > 0)
	{
		degree[src] = 3;
		gc--;
	}
	else if (gb > 0)
	{
		degree[src] = 2;
		gb--;
	}
	else if (ga > 0)
	{
		degree[src] = 1;
		ga--;
	}

	for (int a : adj[src])
		if (a != prev)
			dfs(a, src);
}

vector<int> find_split(int n, int a, int b, int c, vector<int> p, vector<int> q)
{
	ga = a;
	gb = b;
	gc = c;
	degree = vi(n, 0);
	adj = vvi(n);
	for (int i = 0; i < n; i++)
	{
		adj[p[i]].push_back(q[i]);
		adj[q[i]].push_back(p[i]);
		degree[p[i]]++;
		degree[q[i]]++;
	}
	for (int i = 0; i < n; i++)
	{
		if (degree[i] == 1)
		{
			dfs(i);
			break;
		}
	}
	return degree;
}

Compilation message (stderr)

split.cpp:2:9: error: 'vector' does not name a type
    2 | typedef vector<int> vi;
      |         ^~~~~~
split.cpp:3:9: error: 'vector' does not name a type
    3 | typedef vector<vi> vvi;
      |         ^~~~~~
split.cpp:6:1: error: 'vvi' does not name a type
    6 | vvi adj;
      | ^~~
split.cpp:7:1: error: 'vi' does not name a type; did you mean 'void'?
    7 | vi degree;
      | ^~
      | void
split.cpp: In function 'void dfs(int, int)':
split.cpp:14:3: error: 'degree' was not declared in this scope
   14 |   degree[src] = 3;
      |   ^~~~~~
split.cpp:19:3: error: 'degree' was not declared in this scope
   19 |   degree[src] = 2;
      |   ^~~~~~
split.cpp:24:3: error: 'degree' was not declared in this scope
   24 |   degree[src] = 1;
      |   ^~~~~~
split.cpp:28:15: error: 'adj' was not declared in this scope
   28 |  for (int a : adj[src])
      |               ^~~
split.cpp: In function 'std::vector<int> find_split(int, int, int, int, std::vector<int>, std::vector<int>)':
split.cpp:38:2: error: 'degree' was not declared in this scope
   38 |  degree = vi(n, 0);
      |  ^~~~~~
split.cpp:38:11: error: 'vi' was not declared in this scope
   38 |  degree = vi(n, 0);
      |           ^~
split.cpp:39:2: error: 'adj' was not declared in this scope
   39 |  adj = vvi(n);
      |  ^~~
split.cpp:39:8: error: 'vvi' was not declared in this scope
   39 |  adj = vvi(n);
      |        ^~~