QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#267761 | #7738. Equivalent Rewriting | PetroTarnavskyi# | WA | 2ms | 6680kb | C++17 | 1.5kb | 2023-11-27 18:10:19 | 2023-11-27 18:10:19 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define FOR(i, a, b) for(int i = (a); i < (b); i++)
#define RFOR(i, b, a) for(int i = (b) - 1; i >= (a); i--)
#define SZ(a) (int)a.size()
#define ALL(a) a.begin(), a.end()
#define PB push_back
#define MP make_pair
#define F first
#define S second
typedef long long LL;
typedef vector<int> VI;
typedef pair<int, int> PII;
typedef double db;
const int N = 1 << 17;
VI g[N];
int cnt[N];
void solve()
{
int n, m;
cin >> n >> m;
vector<VI> a(n);
VI lastInd(m, -1);
FOR(i, 0, n)
{
int sz;
cin >> sz;
a[i].resize(sz);
for(int& pos : a[i])
{
cin >> pos;
pos--;
lastInd[pos] = i;
}
}
FOR(i, 0, n)
{
for(int pos : a[i])
{
if(lastInd[pos] == i)
continue;
g[i].PB(lastInd[pos]);
cnt[lastInd[pos]]++;
}
}
queue<int> q;
FOR(i, 0, n)
if(cnt[i] == 0)
q.push(i);
VI ans;
while(SZ(q))
{
int v = q.front();
ans.PB(v);
q.pop();
for(int to : g[v])
{
cnt[to]--;
if(cnt[to] == 0)
q.push(to);
}
g[v].clear();
}
FOR(i, 0, n)
{
assert(SZ(g[i]) == 0);
assert(cnt[i] == 0);
}
bool ok = 0;
FOR(i, 0, n)
if(ans[i] != i)
ok = 1;
if(ok)
{
cout << "Yes\n";
FOR(i, 0, n)
{
if(i > 0)
cout << " ";
cout << ans[i] + 1;
}
cout << "\n";
}
else
{
cout << "No\n";
}
}
int main()
{
ios::sync_with_stdio(0);
cin.tie(0);
cout << fixed << setprecision(15);
int t;
cin >> t;
while(t--)
{
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 6520kb
input:
3 3 6 3 3 1 5 2 5 3 2 2 6 2 3 3 1 3 2 2 3 1 1 3 2 2 1
output:
Yes 1 3 2 No No
result:
ok OK. (3 test cases)
Test #2:
score: -100
Wrong Answer
time: 2ms
memory: 6680kb
input:
1 10 5 2 2 4 4 1 3 4 2 1 2 3 2 1 4 4 5 2 4 3 3 2 5 4 3 5 4 2 3 1 3 2 5 1 4 2 3 5 1 4
output:
No
result:
wrong answer jury found an answer but participant did not (test case 1)