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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. typedef long long ll;
  4. typedef vector<bool> vb;
  5. typedef vector<vb> vvb;
  6. typedef vector<int> vi;
  7. typedef vector<vi> vvi;
  8. typedef vector<ll> vl;
  9. typedef vector<vl> vvl;
  10. typedef vector<char> vc;
  11. typedef vector<vc> vvc ;
  12. typedef vector<string> vs;
  13. typedef vector<pair<ll, ll> > vp;
  14. typedef pair<ll, ll> pl;
  15.  
  16. #define endl "\n"
  17. #define pb push_back
  18. #define F first
  19. #define S second
  20. #define all(v) v.begin(), v.end()
  21. #define rall(v) v.rbegin(), v.rend()
  22. #define sz(a) int(a.size())
  23. const ll mod = 1e9+7;
  24.  
  25. vl mp(300, 0);
  26.  
  27. void solve(){
  28. 	ll n, c;
  29. 	string v;
  30. 	vs pem;
  31.  
  32. 	vector<pair<ll, pair<char, char>>> r;
  33.  
  34. 	cin >> n >> c;
  35. 	for(ll i=0; i<n; i++){
  36. 		v+=('A'+i);
  37. 	}
  38.  
  39. 	for(ll i=0; i<c; i++){
  40. 		ll a;
  41. 		char t1, t2;
  42. 		cin >> a >> t1 >> t2;
  43. 		r.pb({a, {t1, t2}});
  44. 	}
  45.  
  46.  
  47. 	ll res=0;
  48. 	do {
  49.  
  50. 		for(ll i=0; i<n; i++)
  51. 			mp[v[i]]=i;
  52.  
  53. 		bool pos=1;
  54.  
  55. 		for(auto rs: r){
  56. 			ll a = rs.F;
  57. 			char t1 = rs.S.F;
  58. 			char t2 = rs.S.S;
  59.  
  60. 			if(a==1 && mp[t1] > mp[t2]){
  61. 				pos=0;
  62.  
  63. 			} else if(a==2 && mp[t1] < mp[t2]){
  64. 				pos=0;
  65.  
  66. 			} else if(a==3 && (mp[t1]+1 == mp[t2] || mp[t2]+1==mp[t1])){
  67. 				pos=0;
  68. 			}
  69. 		}
  70.  
  71. 		res+=pos;	
  72.  
  73. 	} while(next_permutation(all(v)));
  74.  
  75. 	cout << res << endl;
  76.  
  77.  
  78.  
  79.  
  80. }
  81.  
  82. int main(){
  83.     ios::sync_with_stdio(false);
  84.     cin.tie(nullptr);
  85.  
  86.     int tt=1; 
  87.  
  88.     // cin >> tt;
  89.  
  90.     while(tt--){
  91.         solve();
  92.     }
  93. }
Success #stdin #stdout 0.1s 5308KB
comments (?)
stdin 
10 10
1 A B
1 A B
1 A B
1 A B
1 A B
1 A B
1 A B
1 A B
1 A B
1 A B
stdout 
1814400
https://ideone.com/0UBxrb
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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