题解 | #合法IP#
合法IP
http://www.nowcoder.com/practice/995b8a548827494699dc38c3e2a54ee9
要考虑到各种稀奇古怪的情况
let ip
while(ip = readline()){
let arr = ip.split(/[^0-9]/)
if(arr.length!==4) {
print("NO")
}else{
let flag = arr.some(item=>{
if(isNaN(parseInt(item))||parseInt(item)>255||(item.startsWith('0')&&item.length>1)){
return true
}
})
if(flag) print("NO")
else print("YES")
}
}
