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  1. #include<iostream>
  2. #include<cstdio>
  3. #include<cmath>
  4. #include<cstring>
  5. #include<set>
  6. #include<vector>
  7. #include<map>
  8. #include<algorithm>
  9. #include<utility>
  10. #include<ctime>
  11.  
  12. #define MX 100000
  13. #define pb push_back
  14. #define mp make_pair
  15. #define fs first
  16. #define sec second
  17. #define sc scanf
  18. #define pr printf
  19. using namespace std;
  20. vector<int> v[1001];
  21. bool vis[1001];
  22. int c;
  23. void initial(){
  24. 	for(int i=0;i<=1001;++i)
  25. 	{
  26. 		vis[i]=false;
  27. 	}
  28. }
  29. void dfs(int s){
  30. 	vis[s]=true;
  31. 	c=c+1;
  32. 	for(int i=0;i<v[s].size();++i){
  33. 		if(vis[v[s][i]]==false)
  34. 		dfs(v[s][i]);
  35. 	}
  36. }
  37. int main()
  38. {
  39. 	//freopen("t10.txt", "r", stdin);            //  line1
  40.     //freopen("o10.txt", "w", stdout);
  41. 	int min=10000000;
  42. 	int n,m,i,j,a,b,k;
  43. 	cin>>n>>m>>k;
  44. 	while(m--){
  45. 		cin>>a>>b;
  46. 		v[a].push_back(b);
  47. 	}
  48. 	for(i=1;i<=n;i++){
  49. 			initial();
  50. 			 c=0;
  51. 			dfs(i);
  52. 			if(min>c)
  53. 			min=c;
  54. 	}
  55. 		cout<<min*k;
  56. 	return 0;
  57. }
  58.  
Success #stdin #stdout 0s 3472KB
comments (?)
stdin
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3 3 100
1 2
2 3
3 1
stdout
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300
https://ideone.com/zvehxA
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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