题解 | #整数与IP地址间的转换#
整数与IP地址间的转换
http://www.nowcoder.com/practice/66ca0e28f90c42a196afd78cc9c496ea
while(line = readline()) {
var a = line.trim().split('.').map(Number);
var aNum2Arr = a.map((item) => item.toString(2).padStart(8, '0'));
var aNum10 = parseInt(aNum2Arr.join(''), 2);
console.log(aNum10);
var b = +readline(); var bNum2 = b.toString(2).padStart(32, '0'); var rArr = []; for (var i = 0; i <= 24; i = i+ 8) { var n = parseInt(bNum2.slice(i, i+8), 2); rArr.push(n); } console.log(rArr.join('.'));
}