16 lines
837 B
Julia
16 lines
837 B
Julia
i,j,m,d,seed = 55,24,10^9,34,292929 # parameters
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s = Array{Int32}(undef,i); r = similar(s)
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s[1:2] = [seed,1] # table initialization
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for n = 3:i; (s[n] = s[n-2]-s[n-1]) < 0 && (s[n] += m) end
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t = 1; for u=1:i; (global t+=d)>i && (t-=i); r[u]=s[t] end # permutation, r = s[(d*(1:i) .% i).+1]
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u,v,n = i,i-j,i-1
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while (n += 1) > 0
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(global u += 1) > i && (u = 1) # circular indexing: u,v = ((n,n-j) .% i).+1
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(global v += 1) > i && (v = 1)
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(r[u] -= r[v]) < 0 && (r[u] += m) # table update
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n < 220 && continue # 165 silent values
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print((n,r[u])) # show (index,value) of next pseudorandom number
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x = readline(stdin) # wait until the ENTER key is pressed
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length(x) > 0 && break # any other key before ENTER => exit
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end
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