#45533 (Java21) No.152 貯金箱の消失

• 問題: No.152 貯金箱の消失
• ユーザー: holeguma
• 提出日時: 2015-08-25 18:15:30
• 言語: Java21 (openjdk 21)
• 結果: AC
• 実行時間: 108 ms / 5,000 ms
• コード長: 2,469 bytes
• コンパイル時間: 2,375 ms
• コンパイル使用メモリ: 79,052 KB
• 実行使用メモリ: 37,976 KB
• 最終ジャッジ日時: 2024-07-18 13:23:36
• 合計ジャッジ時間: 3,327 ms
• ジャッジサーバーID （参考情報）: judge5 / judge1

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	44 ms; 36,796 KB
testcase_01	AC	48 ms; 36,528 KB
testcase_02	AC	46 ms; 36,956 KB
testcase_03	AC	47 ms; 37,032 KB
testcase_04	AC	49 ms; 37,016 KB
testcase_05	AC	49 ms; 36,568 KB
testcase_06	AC	52 ms; 36,984 KB
testcase_07	AC	63 ms; 37,912 KB
testcase_08	AC	106 ms; 37,768 KB
testcase_09	AC	108 ms; 37,808 KB
testcase_10	AC	99 ms; 37,692 KB
testcase_11	AC	83 ms; 37,976 KB

ソースコード

import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.Deque;
import java.util.HashMap;
import java.util.InputMismatchException;
import java.util.Map;
import java.util.PriorityQueue;
import java.math.BigInteger;
    
public class Main{

static final InputStream in=System.in;
static final PrintWriter out=new PrintWriter(System.out);
static final int INF=Integer.MAX_VALUE/2;
static final long LINF=Long.MAX_VALUE/2;
static final int mod=1000003;
    
public static void main(String[] args) throws IOException{
InputReader ir=new InputReader(in);
int l=ir.nextInt();
l/=4;
int ans=0;
for(int i=2;i<=Math.sqrt(l);i++){
for(int j=1;j<i;j++){
if((i-j)%2==0) continue;
if(gcd(i,j)!=1) continue;
if(2*i*i+2*i*j<=l) ans++;
}
}
out.println(ans%mod);
out.flush();
}

public static int gcd(int a,int b){
if(b==0) return a;
return gcd(b,a%b);
}

static class InputReader {
private InputStream in;
private byte[] buffer=new byte[1024];
private int curbuf;
private int lenbuf;

public InputReader(InputStream in) {this.in=in;}
  
public int readByte() {
if(lenbuf==-1) throw new InputMismatchException();
if(curbuf>=lenbuf){
curbuf= 0;
try{
lenbuf=in.read(buffer);
}
catch (IOException e) {
throw new InputMismatchException();
}
if(lenbuf<=0)
return -1;
}
return buffer[curbuf++];
}

public boolean isSpaceChar(int c){return !(c>=33&&c<=126);}

private int skip() {int b; while((b = readByte())!=-1&&isSpaceChar(b)); return b;}

public String next() {
int b=skip();
StringBuilder sb=new StringBuilder();
while(!isSpaceChar(b)){
sb.appendCodePoint(b);
b=readByte();
}
return sb.toString();
}
 
public int nextInt() {
int c=readByte();
while (isSpaceChar(c)) c=readByte();
boolean minus=false;
if (c=='-') {
minus=true;
c=readByte();
}
int res=0;
do{
if(c<'0'||c>'9') throw new InputMismatchException();
res=res*10+c-'0';
c=readByte();
}while(!isSpaceChar(c));
return (minus)?-res:res;
}

public long nextLong() {
int c=readByte();
while (isSpaceChar(c)) c=readByte();
boolean minus=false;
if (c=='-') {
minus=true;
c=readByte();
}
long res = 0;
do{
if(c<'0'||c>'9') throw new InputMismatchException();
res=res*10+c-'0';
c=readByte();
}while(!isSpaceChar(c));
return (minus)?-res:res;
}

public int[] toIntArray(int n){
int[] a=new int[n];
for(int i=0;i<n;i++) a[i]=nextInt();
return a;
}
}
}