```cpp
void dfs(int i,int j){
for(int k=head[i];k<end1[i];k=head[i]){
head[i]++;
dfs(a[k].t,k);
}
ans[cont++]=j;
return;
}
```
千万别写k++………………
by I_Love_QingYu @ 2023-12-18 17:01:12
@[I_Love_QingYu](/user/514343) ？疑似链式前向星入门玩家？
by Y_QWQ_Y @ 2024-02-09 19:10:25