Cses- game routes || runtime error

Debugging Help
#1

Problem Info

cses -game routes
link:CSES - Game Routes

My Work

#include<bits/stdc++.h>
using namespace std;
#define SPEED() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define ll long long
#define MOD 1000000007

vector topo;
vector vis (1e5+1);

void dfs(ll x,vector<vector> adj){
if(vis[x]){
return;
}
vis[x]=1;
for(auto ele:adj[x]){
dfs(ele,adj);
}

topo.push_back(x);
}

int main(){
ll n,m;cin>>n>>m;
vector<vector> adj (n+1);
vector<vector> rev (n+1);

 ll a,b,ans=0;
 for(int i=0;i<m;i++){
  cin>>a>>b;
  adj[a].push_back(b);
  rev[b].push_back(a);
 }
vector<ll> dp (n+1);
dp[1]=1;

dfs(1,adj);
// for(auto ele:topo)
// cout<<ele<<" ";

reverse(topo.begin(),topo.end());
// for(auto ele: topo)
// cout<<ele<<" ";

for(auto ele:topo){
  if (ele>1)
  {
     for(auto elee:rev[ele]){
   
      dp[ele]+=dp[elee];
      dp[ele]%=MOD;
   
  }
  }
 
}

cout<<dp[n]<<endl;
// for(int i=1;i<=n;i++){
//   cout<<dp[i]<<endl;
// }

}
getting runtime error for large inputs

#2

Have you tried downloading the test cases from CSES?