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  1. f(m,n){return n>m?f(n,m):m*~m*n*~n/4+n*((2*m-n)*(4*n*n-1)-3)/6;}
  2.  
  3. main(){printf("%d\n%d\n%d\n%d\n%d\n%d\n%d\n%d\n%d\n%d\n%d\n",f(0,0),f(0,1),f(1,0),f(1,1),f(3,2),f(2,3),f(6,8),f(7,11),f(18,12),f(42,42),f(51,72));}
  4.  
Success #stdin #stdout 0s 2156KB
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https://ideone.com/RaWkKJ
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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