Data commit

Task/Amicable-pairs/ReScript/amicable-pairs.re

@@ -0,0 +1,25 @@
+let isqrt = (v) => {
+  Belt.Float.toInt(
+    sqrt(Belt.Int.toFloat(v)))
+}
+
+let sum_divs = (n) => {
+  let sum = ref(1)
+  for d in 2 to isqrt(n) {
+    if mod(n, d) == 0 {
+      sum.contents = sum.contents + (n / d + d)
+    }
+  }
+  sum.contents
+}
+
+{
+  for n in 2 to 20000 {
+    let m = sum_divs(n)
+    if (m > n) {
+      if sum_divs(m) == n {
+        Printf.printf("%d %d\n", n, m)
+      }
+    }
+  }
+}