题解 | #杨辉三角的变形#
杨辉三角的变形
https://www.nowcoder.com/practice/8ef655edf42d4e08b44be4d777edbf43
const rl = require("readline").createInterface({ input: process.stdin });
var iter = rl[Symbol.asyncIterator]();
const readline = async () => (await iter.next()).value;
void async function () {
// Write your code here
while(n = await readline()){
if (n<=2) {
console.log(-1)
} else if (n % 4 == 0) {
console.log(3)
} else if (n % 4 == 1 || n % 4 == 3) {
console.log(2)
} else if (n % 2 == 0) {
console.log(4)
}
}
}()
