Bash script to test two solutions

#!/bin/bash
mx=100
i=1
while [ $i -le $mx ]
do
	echo "#$i"
	g++ -std=c++11 gen.cpp && ./a.out > in
	cat in
	g++ -std=c++11 1.cpp && ./a.out < in > out1 && g++ -std=c++11 brute.cpp && ./a.out < in > out2
	# g++ -std=c++11 brute.cpp && ./a.out < in > out2
	echo -n "Origi = "
	cat out1
	echo -n "brute = "
	cat out2
	diff -w out1 out2 || break
	i=$((i+1))
done