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  1. // ~~ icebear ~~
  2. #include <bits/stdc++.h>
  3. using namespace std;
  4.  
  5. typedef long long ll;
  6. typedef pair<int, int> ii;
  7. typedef pair<int, ii> iii;
  8.  
  9. template<class T>
  10.     bool minimize(T &a, const T &b) {
  11.         if (a > b) return a = b, true;
  12.         return false;
  13.     }
  14.  
  15. template<class T>
  16.     bool maximize(T &a, const T &b) {
  17.         if (a < b) return a = b, true;
  18.         return false;
  19.     }
  20.  
  21. #define FOR(i,a,b) for(int i=(a); i<=(b); ++i)
  22. #define FORR(i,a,b) for(int i=(a); i>=(b); --i)
  23. #define REP(i, n) for(int i=0; i<(n); ++i)
  24. #define RED(i, n) for(int i=(n)-1; i>=0; --i)
  25. #define MASK(i) (1LL << (i))
  26. #define BIT(S, i) (((S) >> (i)) & 1)
  27. #define mp make_pair
  28. #define pb push_back
  29. #define fi first
  30. #define se second
  31. #define all(x) x.begin(), x.end()
  32. #define task "icebear"
  33. /*END OF TEMPLATE. ICEBEAR AND THE CAT WILL WIN VOI26 */
  34.  
  35. const int MOD = 1e9 + 7;
  36. const int inf = 1e9 + 27092008;
  37. const ll INF = 1e18 + 27092008;
  38. const int N = 20;
  39. int n, f[N][MASK(20)];
  40. string s;
  41.  
  42. void add(int &x, int y) {
  43.     x += y;
  44.     if (x >= MOD) x -= MOD;
  45. }
  46.  
  47. void init(void) {
  48.     cin >> n >> s;
  49. }
  50.  
  51. void process(void) {
  52.     REP(i, n) f[i][MASK(i)] = 1;
  53.     REP(mask, MASK(n)) REP(i, n) if (f[i][mask] > 0) {
  54.         if (s[i] == '<') {
  55.             REP(j, i) if (BIT(mask, j) == false)
  56.                 add(f[j][mask | MASK(j)], f[i][mask]);
  57.         } else {
  58.             RED(j, n) if (BIT(mask, j) == false) {
  59.                 if (j == i) break;
  60.                 add(f[j][mask | MASK(j)], f[i][mask]);
  61.             }
  62.         }
  63.     }
  64.  
  65.     REP(i, n) cout << f[i][MASK(n) - 1] << ' ';
  66. }
  67.  
  68. int main() {
  69.     ios_base::sync_with_stdio(0);
  70.     cin.tie(0); cout.tie(0);
  71.     if (fopen(task".inp", "r")) {
  72.         freopen(task".inp", "r", stdin);
  73.         freopen(task".out", "w", stdout);
  74.     }
  75.     int tc = 1;
  76. //    cin >> tc;
  77.     while(tc--) {
  78.         init();
  79.         process();
  80.     }
  81.     return 0;
  82. }
  83.  
Success #stdin #stdout 0.01s 5324KB
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https://ideone.com/LhKA54
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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