字符串相加
lzxjack opened this issue · 1 comments
lzxjack commented
字符串相加
lxy-Jason commented
var addStrings = function(num1, num2) {
let p1 = num1.length - 1
let p2 = num2.length - 1
let temp = 0
let res = []
while(p1 >= 0 || p2 >= 0){
let n1 = Number(num1[p1] || 0)
let n2 = Number(num2[p2] || 0)
let sum = n1 + n2 + temp
res.unshift(sum % 10)
temp = (sum / 10) | 0
p1--
p2--
}
if(temp !== 0){
res.unshift(temp)
}
return res.join('')
};