結果

問題 No.806 木を道に
ユーザー watarimaycry2watarimaycry2
提出日時 2020-10-24 18:03:32
言語 JavaScript
(node v21.7.1)
結果
AC  
実行時間 1,441 ms / 2,000 ms
コード長 2,423 bytes
コンパイル時間 203 ms
コンパイル使用メモリ 5,332 KB
実行使用メモリ 112,556 KB
最終ジャッジ日時 2023-09-28 20:33:31
合計ジャッジ時間 14,394 ms
ジャッジサーバーID
(参考情報)
judge12 / judge11
このコードへのチャレンジ
(要ログイン)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 90 ms
42,472 KB
testcase_01 AC 92 ms
42,680 KB
testcase_02 AC 90 ms
42,376 KB
testcase_03 AC 90 ms
42,444 KB
testcase_04 AC 90 ms
42,144 KB
testcase_05 AC 91 ms
42,772 KB
testcase_06 AC 92 ms
42,308 KB
testcase_07 AC 91 ms
42,772 KB
testcase_08 AC 90 ms
42,400 KB
testcase_09 AC 90 ms
42,540 KB
testcase_10 AC 392 ms
62,668 KB
testcase_11 AC 255 ms
60,300 KB
testcase_12 AC 657 ms
99,816 KB
testcase_13 AC 545 ms
86,364 KB
testcase_14 AC 649 ms
99,480 KB
testcase_15 AC 674 ms
100,904 KB
testcase_16 AC 323 ms
67,428 KB
testcase_17 AC 626 ms
95,192 KB
testcase_18 AC 164 ms
52,316 KB
testcase_19 AC 285 ms
63,636 KB
testcase_20 AC 619 ms
90,508 KB
testcase_21 AC 422 ms
74,808 KB
testcase_22 AC 734 ms
105,064 KB
testcase_23 AC 736 ms
105,964 KB
testcase_24 AC 398 ms
82,084 KB
testcase_25 AC 490 ms
97,740 KB
testcase_26 AC 470 ms
69,092 KB
testcase_27 AC 1,441 ms
112,556 KB
testcase_28 AC 113 ms
44,916 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

//Don't have to see. start------------------------------------------
var read = require('readline').createInterface({
	input: process.stdin, output: process.stdout
});
var obj; var inLine = [];
read.on('line', function(input){inLine.push(input);});
read.on('close', function(){
	obj = init(inLine);
	console.error('\n↑入力 ↓出力');
	Main();
});
function makeClone(obj){return (obj instanceof Set) ? new Set(Array.from(obj)) : JSON.parse(JSON.stringify(obj));}
function nextInt(){return myconv(next(),1);} function nextStrArray(){return myconv(next(),2);}
function nextIntArray(){return myconv(next(),4);} function nextCharArray(){return myconv(next(),6);}
function next(){return obj.next();} function hasNext(){return obj.hasNext();}
function init(input){  
	return {
		list : input, index : 0, max : input.length,
		hasNext : function(){return (this.index < this.max);},
		next : function(){if(this.hasNext()){return this.list[this.index++];}else{throw 'ArrayIndexOutOfBoundsException ‚There is no more input';}}
	};
}
function myout(s){console.log(s);}
function myerr(s){console.error('debug:' + require('util').inspect(s,false,null));}
//param "no" is
//unknown or outlier : return i. 1: parseInt.
//2: split space. 4: split space and parseInt.
//6: split 1 character. 7: split 1 character and parseInt.
//8: join space. 9: join nextline. 0: join no character.
function myconv(i,no){try{switch(no){case 1:return parseInt(i);case 2:return i.split(' ');case 4:return i.split(' ').map(Number);case 6:return i.split('');case 7:return i.split('').map(Number);case 8:return i.join(' ');case 9:return i.join('\n');case 0:return i.join('');default:return i;}}catch(e){return i;}}

//Don't have to see. end------------------------------------------
function Main(){
	var N = nextInt();
	var list = new Array(N);
	for(var i = 0; i < N; i++){
		list[i] = {
			child : new Set(),
			access : false
		};
	}
	for(var i = 0; i < N - 1; i++){
		var tmp = nextIntArray();
		list[tmp[0] - 1].child.add(tmp[1] - 1);
		list[tmp[1] - 1].child.add(tmp[0] - 1);
	}
	var output = 0;
	var queue = [0];
	list[0].access = true;
	while(queue.length > 0){
		var now = queue.shift();
		output += Math.max(0, list[now].child.size - 2);
		var child = Array.from(list[now].child);
		for(var i = 0; i < child.length; i++){
			if(!list[child[i]].access){
				list[child[i]].access = true;
				queue.push(child[i]);
			}
		}
	}
	myout(output);
}
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