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vault backup: 2023-10-25 16:43:46

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Louis Gallet 2023-10-25 16:43:46 +02:00
parent a397067481
commit 9c5f0484ec
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13
Algo/Courses/Chapter 7 - X (exercises).md
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@ -1,8 +1,11 @@
```Ocaml
# let sum n =
if n = 0 then
0
else if n < 0 then
failwith "input must be positive"
if n < 0 then
invalid_arg "n<0"
else
n + sum(n-1)
let rec sumrc n =
if n=0 then
0
else
n + sum(n-1)
in sumrc n;;