4374 | 2023. 03. 27 11:07:01 | 1478 | Testnevelés óra | cpp17 | Elfogadva 50/50 | 225ms | 24992 KiB |
#include <bits/stdc++.h>
using namespace std;
int main()
{
///koszi peti1234
//ifstream cin("in.txt");
//ofstream cout("out.txt");
int n, k;
cin >> n >> k;
vector<vector<int>> sz(n + 1);
vector<int> be(n + 1);
for(int i = 1; i <= k; i++){
int a, b;
cin >> a >> b;
sz[a].push_back(b);
be[b]++;
}
queue<int> s;
for(int i = 1; i <= n; i++){
if(be[i] == 0){
s.push(i);
}
}
vector<int> ans;
while(!s.empty()){
int f = s.front();
//cout<<f<<" ";
ans.push_back(f);
s.pop();
for(int x:sz[f]){
be[x]--;
if(!be[x]){
s.push(x);
}
}
}
/* for(int i = 0; i < n; i++){
cout << ans[i] << " ";
}*/
if(ans.size() != n){
cout << 0;
return 0;
}
int hol = 0;
for(int i = 0; i < n - 1; i++){
int a = ans[i];
int b = ans[i + 1];
bool csere = 1;
for(int x : sz[a]){
if(b == x){
csere = 0;
}
}
if(csere){
hol = i;
}
}
if(hol == 0){
cout << 1 << '\n';
for(int i = 0; i < n; i++){
cout << ans[i] << " ";
}
}
else{
cout << 2 << '\n';
for(int i = 0; i < n; i++){
cout << ans[i] << " ";
}
cout << '\n';
swap(ans[hol], ans[hol + 1]);
for(int i = 0; i < n; i++){
cout << ans[i] << " ";
}
}
return 0;
}
Részfeladat | Összpont | Teszt | Verdikt | Idő | Memória | ||
---|---|---|---|---|---|---|---|
base | 50/50 | ||||||
1 | Elfogadva | 0/0 | 3ms | 1840 KiB | |||
2 | Elfogadva | 0/0 | 2ms | 1984 KiB | |||
3 | Elfogadva | 0/0 | 181ms | 13980 KiB | |||
4 | Elfogadva | 2/2 | 3ms | 2524 KiB | |||
5 | Elfogadva | 3/3 | 3ms | 2768 KiB | |||
6 | Elfogadva | 3/3 | 3ms | 2980 KiB | |||
7 | Elfogadva | 3/3 | 3ms | 3044 KiB | |||
8 | Elfogadva | 1/1 | 2ms | 3156 KiB | |||
9 | Elfogadva | 3/3 | 3ms | 3364 KiB | |||
10 | Elfogadva | 3/3 | 4ms | 3388 KiB | |||
11 | Elfogadva | 3/3 | 4ms | 3656 KiB | |||
12 | Elfogadva | 1/1 | 4ms | 3756 KiB | |||
13 | Elfogadva | 2/2 | 4ms | 3864 KiB | |||
14 | Elfogadva | 3/3 | 3ms | 3952 KiB | |||
15 | Elfogadva | 1/1 | 155ms | 11416 KiB | |||
16 | Elfogadva | 3/3 | 138ms | 19932 KiB | |||
17 | Elfogadva | 5/5 | 59ms | 18464 KiB | |||
18 | Elfogadva | 1/1 | 225ms | 24992 KiB | |||
19 | Elfogadva | 2/2 | 153ms | 11940 KiB | |||
20 | Elfogadva | 3/3 | 185ms | 23612 KiB | |||
21 | Elfogadva | 4/4 | 175ms | 23616 KiB | |||
22 | Elfogadva | 4/4 | 177ms | 23616 KiB |