Du kan inte välja fler än 25 ämnen
Ämnen måste starta med en bokstav eller siffra, kan innehålla bindestreck ('-') och vara max 35 tecken långa.
135 rader
3.6 KiB
135 rader
3.6 KiB
const readline = require("readline");
|
|
const rl = readline.createInterface(process.stdin, process.stdout);
|
|
|
|
class Node {
|
|
previous;
|
|
value;
|
|
next;
|
|
}
|
|
|
|
class LinkList {
|
|
head;
|
|
length;
|
|
constructor(length) {
|
|
// 还是需要头结点，此时head表示其中第0个结点，length必须大于0
|
|
this.length = length;
|
|
this.head = new Node();
|
|
// this.head.value = 1;
|
|
let current, previous = this.head;
|
|
for (let i = 1; i <= this.length; i++) {
|
|
current = new Node();
|
|
current.value = i;
|
|
previous.next = current;
|
|
current.previous = previous;
|
|
previous = current;
|
|
}
|
|
current.next = this.head.next;
|
|
this.head.next.previous = current;
|
|
// this.head.next = this.current; // 不能多重赋值，赋值语句会返回undefined
|
|
this.head.previous = current;
|
|
}
|
|
remove(node) {
|
|
node.previous.next = node.next;
|
|
node.next.previous = node.previous;
|
|
// delete node; // JavaScript里应该无法直接删除
|
|
this.length--;
|
|
return true;
|
|
}
|
|
|
|
// 找到从当前结点开始第n个结点（可以为负数），当前结点是第0个
|
|
// 并且再向后返回一个结点
|
|
get_n_after_node(node, n) {
|
|
let property_name = "next";
|
|
if (n < 0) {
|
|
property_name = "previous";
|
|
n = -n;
|
|
}
|
|
if (this.length < 3) return false;
|
|
for (let i = 0; i < n; i++) { // 向后走n个，例如从0开始，到3结束
|
|
node = node[property_name];
|
|
}
|
|
return node;
|
|
}
|
|
}
|
|
|
|
function main(people_num, num1, num2) {
|
|
let link_list = new LinkList(people_num);
|
|
let current = link_list.head;
|
|
let temp;
|
|
while (true) {
|
|
temp = link_list.get_n_after_node(current, num1);
|
|
if (!temp) break;
|
|
current = temp;
|
|
link_list.remove(current);
|
|
temp = link_list.get_n_after_node(current, num2);
|
|
if (!temp) break;
|
|
current = temp;
|
|
link_list.remove(current);
|
|
}
|
|
// 此时current是最后一个被删掉的结点，它的next和previous都是存在的结点
|
|
current = current.next;
|
|
link_list.head.next = current;
|
|
for (let i = 0; i < link_list.length; i++) {
|
|
console.log(current.value);
|
|
current = current.next;
|
|
}
|
|
}
|
|
|
|
function input(prompt) {
|
|
return new Promise((resolve) => {
|
|
rl.question(prompt, (answer) => {
|
|
resolve(answer);
|
|
});
|
|
});
|
|
}
|
|
|
|
function visualize(dryrun, link_list) {
|
|
if (dryrun) {
|
|
return;
|
|
}
|
|
let result = {
|
|
"kind": { "graph": true },
|
|
"nodes": [
|
|
],
|
|
"edges": [
|
|
]
|
|
};
|
|
let current = link_list.head.next;
|
|
for (let i = 0; i < link_list.length; i++) {
|
|
result.nodes.push({
|
|
"id": String(i),
|
|
"label": String(current.value)
|
|
});
|
|
current = current.next;
|
|
result.edges.push({
|
|
"from": String(i),
|
|
"to": String(i + 1)
|
|
});
|
|
}
|
|
result.edges[result.edges.length - 1].to = "0";
|
|
return result;
|
|
}
|
|
|
|
|
|
async function main_() {
|
|
visualize(true); // 不加这行可能它转化成Promise的时候不会放到闭包作用域里。
|
|
people_num = parseInt(await input("输入人数"));
|
|
num1 = parseInt(await input("输入第一个数字"));
|
|
num2 = parseInt(await input("输入第二个数字"));
|
|
main(people_num, num1, num2);
|
|
rl.close();
|
|
}
|
|
|
|
main_()
|
|
|
|
// 输入人数10000
|
|
// 输入第一个数字123
|
|
// 输入第二个数字-654
|
|
// 1299
|
|
// 4114
|
|
|
|
// 输入人数99999
|
|
// 输入第一个数字-848
|
|
// 输入第二个数字-351
|
|
// 80178
|
|
// 23680
|