1.emplace改成push(make_pair(,))
2.括号打错地方了
by HZHDCM @ 2024-03-23 14:23:22
@[Lontano_Island](/user/1013142)
```cpp
#include<bits/stdc++.h>
#define PII pair<int,int>
using namespace std;
const int kMax=1005;
int n,m;
int s[kMax],ind[kMax];
bool stop[kMax],vis[kMax][kMax];
vector<int> edge[kMax*kMax];
queue<PII> q;
int ans=0;
int main()
{
cin>>n>>m;
for(int i=1;i<=m;i++)
{
memset(stop,0,sizeof(stop));
int temp; cin>>temp;
for(int t=1;t<=temp;t++)
{
cin>>s[t];
stop[s[t]]=1;
}
for(int cnt=s[1];cnt<=s[temp];cnt++)
{
if(!stop[cnt])
{
for(int u=1;u<=temp;u++)
{
if(!vis[cnt][s[u]])
{
ind[s[u]]++;
vis[cnt][s[u]]=1;
edge[cnt].push_back(s[u]);
}
}
}
}
}
for(int p=1;p<=n;p++) if(!ind[p]) q.push(make_pair(p,1));
while(!q.empty()){
PII in=q.front(); q.pop();
int i_first=in.first;
int i_second=in.second;
for(int d=0;d<edge[i_first].size();d++)
{
int to=edge[i_first][d];
ind[to]--;
if(!ind[to]) q.push(make_pair(to,i_second+1));
ans=max(ans,i_second+1);
}
}
cout<<ans;
return 0;
}
```
by HZHDCM @ 2024-03-23 14:24:56