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| 1 | let swap (arr : int[,]) i1 i2 = | |
| 2 | let map i j v = | |
| 3 | match (i,j) with | |
| 4 | - | | t when t = i1 -> arr.[fst i2, snd i2] |
| 4 | + | | t when t = i1 -> arr.[fst i2, snd i2] // why are we declaring t? why cant we say just i1 when i1 true .... |
| 5 | | u when u = i2 -> arr.[fst i1, snd i1] | |
| 6 | | _ -> v | |
| 7 | arr |> Array2D.mapi map |
