Construct a binary summation tree to sum all the values
(api frontend.API, vs []RationalNumber)
| 26 | |
| 27 | // Construct a binary summation tree to sum all the values |
| 28 | func SumRationalNumbers(api frontend.API, vs []RationalNumber) RationalNumber { |
| 29 | n := len(vs) |
| 30 | if n == 0 { |
| 31 | return RationalNumber{Numerator: 0, Denominator: 1} |
| 32 | } |
| 33 | |
| 34 | vvs := make([]RationalNumber, len(vs)) |
| 35 | copy(vvs, vs) |
| 36 | |
| 37 | n_values_to_sum := len(vvs) |
| 38 | for n_values_to_sum > 1 { |
| 39 | half_size_floor := n_values_to_sum / 2 |
| 40 | for i := 0; i < half_size_floor; i++ { |
| 41 | vvs[i] = vvs[i].Add(api, &vvs[i+half_size_floor]) |
| 42 | } |
| 43 | |
| 44 | if n_values_to_sum&1 != 0 { |
| 45 | vvs[half_size_floor] = vvs[n_values_to_sum-1] |
| 46 | } |
| 47 | |
| 48 | n_values_to_sum = (n_values_to_sum + 1) / 2 |
| 49 | } |
| 50 | |
| 51 | return vvs[0] |
| 52 | } |
| 53 | |
| 54 | type LogUpCircuit struct { |
| 55 | TableKeys [][]frontend.Variable |
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