【中级】合并有序数组
参考答案:
var a = [1,3,5,7,9]
var b = [2,4,6,8,9]
// 合并有序数组
function merge(a, b) {
}
=> [1,2,3,4,5,6,7,8,9,9]
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参考答案
function merge(a, b) {
const aLen = a.length;
const bLen = b.length;
if (aLen === 0) {
return b;
}
if (bLen === 0) {
return a;
}
const res = [];
let i = 0;
let j = 0;
while(i < aLen && j < bLen) {
if (a[i] < b[j]) {
res.push(a[i]);
i++;
} else {
res.push(b[j]);
j++;
}
}
while(j < bLen) {
res.push(b[j]);
j++
}
while(i < aLen) {
res.push(a[i]);
i++;
}
return res;
}
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