misc: add already solved challenges

misc/nice_netcat/output.txt

@@ -0,0 +1,42 @@
+112 
+105 
+99 
+111 
+67 
+84 
+70 
+123 
+103 
+48 
+48 
+100 
+95 
+107 
+49 
+116 
+116 
+121 
+33 
+95 
+110 
+49 
+99 
+51 
+95 
+107 
+49 
+116 
+116 
+121 
+33 
+95 
+57 
+98 
+51 
+98 
+55 
+51 
+57 
+50 
+125 
+10 

misc/nice_netcat/solve.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env sh
+
+cat ./output.txt | awk '{printf("%c", $0);}'