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Task/Narcissistic-decimal-number/UNIX-Shell/narcissistic-decimal-number.sh

@@ -0,0 +1,14 @@
+function narcissistic {
+    integer n=$1 len=${#n} sum=0 i
+    for ((i=0; i<len; i++)); do
+        (( sum += pow(${n:i:1}, len) ))
+    done
+    (( sum == n ))
+}
+
+nums=()
+for ((n=0; ${#nums[@]} < 25; n++)); do
+    narcissistic $n && nums+=($n)
+done
+echo "${nums[*]}"
+echo "elapsed: $SECONDS"