题解 | #跳台阶#
跳台阶
http://www.nowcoder.com/practice/8c82a5b80378478f9484d87d1c5f12a4
function jumpFloor(number)
{
if (number === 0 || number === 1 || number === 2) {
return number
}
let one = 1, two = 2, result = 0
for (let i = 3; i <= number; i++) {
result = one + two
one = two
two = result
}
return result
}
module.exports = {
jumpFloor : jumpFloor
};
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