Submission #1134211

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1134211	2025-01-09 22:33:33	bpptidp	Shell (info1cup18_shell)	C++20	55 / 100	863 ms	25412 KiB

shell

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#include<bits/stdc++.h>
using namespace std;
#define int int64_t
#define pb push_back
const int N=1.5e3+2,mod=1e9+7;
vector<int>g[N],rg[N];
int tin[N],tout[N];
int memo[N],vrx[N];
int n,m,p,ti;
int get(int u,int v){
  if(u==v)return memo[v]=1;
  if(memo[v]!=-1)return memo[v];
  int sm=0;
  for(int j:rg[v])
    sm=(sm+get(u,j))%mod;
  return memo[v]=sm;
}
void dfs(int u){
  tin[u]=++ti;
  for(int v:g[u])if(!tin[v])dfs(v);
  tout[u]=++ti;
}
bool iznad(int a,int b){
  return tin[a]<=tin[b]&&tout[a]>=tout[b];
}
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 45 / 45
• Subtask 3: 0 / 20
• Subtask 4: 0 / 25