結果

問題 No.87 Advent Calendar Problem
ユーザー 37zigen
提出日時 2020-03-26 02:58:40
言語 Java
(openjdk 23)
結果
AC  
実行時間 127 ms / 5,000 ms
コード長 3,116 bytes
コンパイル時間 2,957 ms
コンパイル使用メモリ 81,424 KB
実行使用メモリ 54,548 KB
最終ジャッジ日時 2025-01-02 00:40:23
合計ジャッジ時間 7,553 ms
ジャッジサーバーID
(参考情報)
judge1 / judge2
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 24
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 #
プレゼンテーションモードにする

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.math.BigInteger;
import java.util.Arrays;
import java.util.NoSuchElementException;
import java.util.Scanner;
public class Main {
public static void main(String[] args) throws FileNotFoundException {
long t = System.currentTimeMillis();
new Main().run();
System.err.println(System.currentTimeMillis() - t);
}
void run() {
Scanner sc = new Scanner(System.in);
//2015<=N<=10^10
//2014/07/23
//2015~N
//2014%100=14
//2014%400=14
//365%7=1
//21
//4
//100
//400
long N=sc.nextLong();
int d=0;
N-=2014;
long ans=N/400*57;
for(long y=1;y<=N%400;++y) {
if((y+14)%400==0||((y+14)%100!=0&&(y+14)%4==0)) {
d+=2;
}else {
d+=1;
}
d%=7;
if(d==0) ++ans;
}
System.out.println(ans);
}
static void tr(Object... objects) {
System.out.println(Arrays.deepToString(objects));
}
}
class FastScanner {
private final InputStream in = System.in;
private final byte[] buffer = new byte[1024];
private int ptr = 0;
private int buflen = 0;
private boolean hasNextByte() {
if (ptr < buflen) {
return true;
}else{
ptr = 0;
try {
buflen = in.read(buffer);
} catch (IOException e) {
e.printStackTrace();
}
if (buflen <= 0) {
return false;
}
}
return true;
}
private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;}
public boolean hasNext() { skipUnprintable(); return hasNextByte();}
public String next() {
if (!hasNext()) throw new NoSuchElementException();
StringBuilder sb = new StringBuilder();
int b = readByte();
while(isPrintableChar(b)) {
sb.appendCodePoint(b);
b = readByte();
}
return sb.toString();
}
public long nextLong() {
if (!hasNext()) throw new NoSuchElementException();
long n = 0;
boolean minus = false;
int b = readByte();
if (b == '-') {
minus = true;
b = readByte();
}
if (b < '0' || '9' < b) {
throw new NumberFormatException();
}
while(true){
if ('0' <= b && b <= '9') {
n *= 10;
n += b - '0';
}else if(b == -1 || !isPrintableChar(b)){
return minus ? -n : n;
}else{
throw new NumberFormatException();
}
b = readByte();
}
}
public int nextInt() {
return (int)nextLong();
}
}
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