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  1.  #include<bits/stdc++.h>
  2. using namespace std;
  3. typedef long long int ll;
  4. typedef long double ld;
  5. #define rep(i,a,b)  for(int i=a;i<b;i++)
  6. #define nl cout<<endl
  7.  
  8. #define pii pair<ll,ll>
  9. #define vi  vector<ll>
  10. #define vii vector<pii>
  11. #define mi  map<ll,ll>
  12. #define all(a)  (a).begin(),(a).end()
  13.  
  14. #define pb push_back
  15. #define ff first
  16. #define ss second
  17. #define hell 1000000007
  18.  
  19. #define test4(x,y,z,a) cout<<"x is "<<x<<"		y is "<<y<<"		z is "<<z<<"		a is "<<a<<endl;
  20. #define test3(x,y,z) cout<<"x is "<<x<<"		y is "<<y<<"		z is "<<z<<endl;
  21. #define test2(x,y) cout<<"x is "<<x<<"		y is "<<y<<endl;
  22. #define test1(x) cout<<"x is "<<x<<endl;
  23. #define N 300009
  24.  
  25. ll power(ll a, ll b, ll m)
  26. {
  27.     ll ans = 1;
  28.     while(b)
  29.     {
  30.         if(b & 1)
  31.             ans = (ans * a) % m;
  32.         b /= 2;
  33.         a = (a * a) % m;
  34.     }
  35.     return ans;
  36. }
  37. int a[102][102];
  38. int cache[102][102][2][2][2][2][2][2][2][2][2][2];
  39. int n, m;
  40. int lol(int x, int y, int s, int d, int f, int g, int h, int j, int k, int l, int s3, int s9)
  41. {
  42.     if(x == n and y == m)
  43.     {
  44.         int fc[32] = {0}, ans = 0;int num = a[x][y];
  45.         for(int i = 2; i <= sqrt(num); i++)
  46.         {
  47.             while(num % i == 0)
  48.             {
  49.                 fc[i]++;
  50.                 num /= i;
  51.             }
  52.         }
  53.         if(num >= 2)	fc[num]++;
  54.         rep(i, 0, 30)	fc[i] %= 2;
  55.         int mc = 1;
  56.         mc *= ((s + fc[2] + 1) % 2) * ((d + fc[3] + 1) % 2) * ((f + fc[5] + 1) % 2) * ((g + fc[7] + 1) % 2) * ((h + fc[11] + 1) % 2) * ((j + fc[13] + 1) % 2) * ((k + fc[17] + 1) % 2) * ((l + fc[19] + 1) % 2) * ((s3 + fc[23] + 1) % 2) * ((s9 + fc[29] + 1) % 2);
  57.         return mc % 2;
  58.     }
  59.     if(x > n or y > m)
  60.     {
  61.         return 0;
  62.     }
  63.     if(cache[x][y][s][d][f][g][h][j][k][l][s3][s9] != -1)
  64.         return cache[x][y][s][d][f][g][h][j][k][l][s3][s9];
  65.     int fc[32] = {0}, ans = 0;
  66.     int num = a[x][y];
  67.     for(int i = 2; i <= sqrt(num); i++)
  68.     {
  69.         while(num % i == 0)
  70.         {
  71.             fc[i]++;
  72.             num /= i;
  73.         }
  74.     }
  75.     if(num >= 2)	fc[num]++;
  76.  
  77.     ans += lol(x + 1, y, (s + fc[2]) % 2, (d + fc[3]) % 2, (f + fc[5]) % 2, (g + fc[7]) % 2, (h + fc[11]) % 2, (j + fc[13]) % 2, (k + fc[17]) % 2, (l + fc[19]) % 2, (s3 + fc[23]) % 2, (s9 + fc[29]) % 2);
  78.     ans %= hell;
  79.     ans += lol(x, y + 1, (s + fc[2]) % 2, (d + fc[3]) % 2, (f + fc[5]) % 2, (g + fc[7]) % 2, (h + fc[11]) % 2, (j + fc[13]) % 2, (k + fc[17]) % 2, (l + fc[19]) % 2, (s3 + fc[23]) % 2, (s9 + fc[29]) % 2);
  80.     ans %= hell;
  81.     return cache[x][y][s][d][f][g][h][j][k][l][s3][s9] = ans;
  82. }
  83. int main()
  84. {
  85.     ios_base::sync_with_stdio(false);
  86.     cin.tie(NULL);
  87.     cout.tie(NULL);
  88.  
  89.     int t;
  90.     cin >> t;
  91.     while(t--)
  92.     {
  93.         cin >> n >> m;
  94.         rep(i, 1, n + 1)
  95.         {
  96.             rep(j, 1, m + 1)
  97.             {
  98.                 cin >> a[i][j];
  99.             }
  100.         }
  101.         int ans = lol(1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
  102.         cout << ans << "\n";
  103.     }
  104. }
Success #stdin #stdout 0s 4484KB
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https://ideone.com/XcgEt2
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
public

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