Adding last algorithms

Author: vtrbtf

Classical/data-structures/queue/shell/main.sh renamed to Classical/data-structures/queue/shell/queue.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+read -r N
+
+for ((i=0; i<N; i++)); do 
+	for ((j=0; j< $(( N - i - 1)); j++ )); do
+		printf  " "
+	done
+	
+	for ((j=$(( N - i -1 )); j < $N; j++ )); do
+		printf "#"
+	done
+	
+	printf "\n"	
+done
+

HackerRank/Warmup/Staircase/shell/staircase.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+pick() {
+	echo "$time" | cut -d : -f $1
+}
+
+read -r time
+
+h=$( pick 1 )
+m=$( pick 2 )
+
+s=$( pick 3 ) 
+s=${s:0:2}
+
+period=$( pick 3 )
+period=${period:2:2}
+
+
+[[ $period == "PM" ]] && echo "$((h + 12)):${m}:${s}" || echo "${h}:${m}:${s}"