image.png
function show(arr){
var str0 = arr[0];
var str1 = arr[1];
var count = 0;
var index = 0;
for(var i=0;i<str0.length;i++){
for(var j=0;j<str1.length;j++){
if(str0.charAt(i) == str1.charAt(j)){
var k = 1;
while (str0.charAt(i+k) == str1.charAt(j+k)){
k++
if(k>count){
count = k
index = i
}
}
}
}
}
return str0.substr(index,count)
}
