Submission #534764

#	Time	Username	Problem	Language	Result	Execution time	Memory
534764		Icebear16	Keys (IOI21_keys)	C++17	Compilation error	0 ms	0 KiB

keys

#include <bits/stdc++.h>

std::vector<int> adj[2000];
std::vector<bool> visited(2000,false);
int k=0;
set<int> s;
void dfs(int u){
	if(visited[u]){
		return;
	}else{
		visited[u]=true;
		s.insert(r[u]);
		k+=1;
//		std::cout<<u<<" ";
	}
	for(int i=0;i<adj[u].size();i++){
		if(s.count())
		int v=adj[u][i];
		dfs(v);
	}
}

std::vector<int> find_reachable(std::vector<int> r, std::vector<int> u, std::vector<int> v, std::vector<int> c) {
	std::vector<int> ans(r.size(), 1);
	for(int i=0;i<u.size();i++){
		adj[u[i]].push_back(v[i]);
//		adj[v[i]].push_back(u[i]);
	}
	for(int i=0;i<r.size();i++){
//		std::cout<<std::endl;
		s.insert(r[i]);
		dfs(i);
//		std::cout<<k<<std::endl;
		ans[i]=k;
		k=0;
		for(int j=0;j<r.size();j++){
			visited[j]=false;
		}
	}
	int m=1000000;
	for(int i=0;i<r.size();i++){
		m=std::min(m,ans[i]);
	}
//	return ans;
	for(int i=0;i<r.size();i++){
		if(ans[i]==m){
			ans[i]=1;
		}else{
			ans[i]=0;
		}
	}
	return ans;
}

Compilation message (stderr)

keys.cpp:6:1: error: 'set' does not name a type; did you mean 'setns'?
    6 | set<int> s;
      | ^~~
      | setns
keys.cpp: In function 'void dfs(int)':
keys.cpp:12:3: error: 's' was not declared in this scope
   12 |   s.insert(r[u]);
      |   ^
keys.cpp:12:12: error: 'r' was not declared in this scope
   12 |   s.insert(r[u]);
      |            ^
keys.cpp:16:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |  for(int i=0;i<adj[u].size();i++){
      |              ~^~~~~~~~~~~~~~
keys.cpp:17:6: error: 's' was not declared in this scope
   17 |   if(s.count())
      |      ^
keys.cpp:18:7: warning: unused variable 'v' [-Wunused-variable]
   18 |   int v=adj[u][i];
      |       ^
keys.cpp:19:7: error: 'v' was not declared in this scope
   19 |   dfs(v);
      |       ^
keys.cpp: In function 'std::vector<int> find_reachable(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
keys.cpp:25:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |  for(int i=0;i<u.size();i++){
      |              ~^~~~~~~~~
keys.cpp:29:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |  for(int i=0;i<r.size();i++){
      |              ~^~~~~~~~~
keys.cpp:31:3: error: 's' was not declared in this scope
   31 |   s.insert(r[i]);
      |   ^
keys.cpp:36:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |   for(int j=0;j<r.size();j++){
      |               ~^~~~~~~~~
keys.cpp:41:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |  for(int i=0;i<r.size();i++){
      |              ~^~~~~~~~~
keys.cpp:45:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |  for(int i=0;i<r.size();i++){
      |              ~^~~~~~~~~