QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#549837 | #7738. Equivalent Rewriting | He2717970784 | WA | 1ms | 6352kb | C++17 | 1.5kb | 2024-09-06 21:56:21 | 2024-09-06 21:56:21 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int N = 1e5 + 9;
int vis[N];
vector<int>edge[N];
vector<int>root;
void dfs(int u,bool flag){
if(flag){
cout << u << ' ';
}
for(int v : edge[u]){
if(!vis[v]){
vis[v] = 1;
dfs(v,flag);
}
}
}
void solve(){
int n = 0,m = 0;
cin >> n >> m;
root.clear();
for(int i = 1;i <= m;i++){
vis[i] = 0;
}
for(int i = 1;i <= n;i++){
edge[i].clear();
}
for(int i = 1;i <= n;i++){
int num = 0;
cin >> num;
while(num--){
int x = 0;
cin >> x;
if(vis[x]){
edge[vis[x]].push_back(i);
}
vis[x] = i;
}
}
for(int i = 1;i <= n;i++){
vis[i] = 0;
}
for(int i = 1;i <= n;i++){
if(!vis[i]){
root.push_back(i);
vis[i] = 1;
dfs(i,false);
}
}
if((int)root.size() == 1){
cout << "No" << endl;
return;
}
reverse(root.begin(),root.end());
for(int i = 1;i <= n;i++){
vis[i] = 0;
}
cout << "Yes" << endl;
for(int x : root){
if(!vis[x]){
vis[x] = 1;
dfs(x,true);
}
}
cout << endl;
}
signed main(){
ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
int t = 0;
cin >> t;
while(t--){
solve();
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 5916kb
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 3 1 2 No No
result:
ok OK. (3 test cases)
Test #2:
score: -100
Wrong Answer
time: 1ms
memory: 6352kb
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)