結果
問題 | No.217 魔方陣を作ろう |
ユーザー | 37zigen |
提出日時 | 2020-04-06 02:51:23 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 120 ms / 5,000 ms |
コード長 | 5,148 bytes |
コンパイル時間 | 2,465 ms |
コンパイル使用メモリ | 83,388 KB |
実行使用メモリ | 53,068 KB |
最終ジャッジ日時 | 2024-07-05 02:53:53 |
合計ジャッジ時間 | 5,420 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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 | 94 ms
52,768 KB |
testcase_01 | AC | 94 ms
52,564 KB |
testcase_02 | AC | 96 ms
52,732 KB |
testcase_03 | AC | 95 ms
52,572 KB |
testcase_04 | AC | 99 ms
52,484 KB |
testcase_05 | AC | 98 ms
52,776 KB |
testcase_06 | AC | 99 ms
52,560 KB |
testcase_07 | AC | 100 ms
52,924 KB |
testcase_08 | AC | 99 ms
52,924 KB |
testcase_09 | AC | 103 ms
52,796 KB |
testcase_10 | AC | 106 ms
53,032 KB |
testcase_11 | AC | 102 ms
52,896 KB |
testcase_12 | AC | 104 ms
53,068 KB |
testcase_13 | AC | 111 ms
53,008 KB |
testcase_14 | AC | 115 ms
52,984 KB |
testcase_15 | AC | 112 ms
52,820 KB |
testcase_16 | AC | 110 ms
52,784 KB |
testcase_17 | AC | 120 ms
52,752 KB |
ソースコード
import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Arrays; import java.util.NoSuchElementException; public class Main implements Runnable{ public static void main(String[] args) { new Thread(null,new Main(), "" ,Runtime.getRuntime().maxMemory()).start(); } boolean check(int[][] a) { int n=a.length; boolean ret=true; long sum=Arrays.stream(a[0]).sum(); for(int i=0;i<a.length;++i)ret&=Arrays.stream(a[i]).sum()==sum; { int s=0; for(int i=0;i<a.length;++i) { s+=a[i][i]; } ret=s==sum; s=0; for(int i=0;i<a.length;++i) { s+=a[n-1-i][i]; } ret=s==sum; } //縦はさぼる。 return ret; } void apply(int y,int x,int base,int[][] add,int[][] subject) { for(int i=0;i<2;++i) { for(int j=0;j<2;++j) { subject[y+i][x+j]=base+add[i][j]; } } } int[][] magic_square_LUX(int N){ assert(N%4==2); int[][] a=magic_square_odd(N/2); int[][] ret=new int[N][N]; for(int i=0;i<a.length;++i) for(int j=0;j<a[i].length;++j) a[i][j]=(a[i][j]-1)*4; int[][] L= {{4,1},{2,3}}; int[][] U= {{1,4},{2,3}}; int[][] X= {{1,4},{3,2}}; for(int i=0;i<N/2;++i) { for(int j=0;j<N/2;++j) { if(i==N/4&&j==N/4) {// U apply(i*2,j*2,a[i][j],U,ret); }else if(i==N/4+1&&j==N/4) {// L apply(i*2,j*2,a[i][j],L,ret); }else if(i<=N/4) {// L apply(i*2,j*2,a[i][j],L,ret); }else if(i==N/4+1) {// U apply(i*2,j*2,a[i][j],U,ret); }else {// X apply(i*2,j*2,a[i][j],X,ret); } } } return ret; } int[][] magic_square_four(int N){ assert(N%4==0); int[][] ret=new int[N][N]; for(int i=0;i<N;++i) { for(int j=0;j<N;++j) { if(((i+1)/2+(j+1)/2)%2==0) { ret[i][j]=i*N+j+1; }else { ret[i][j]=N*N-(i*N+j); } } } return ret; } int[][] magic_square_odd(int N){ assert(N%2==1); int[][] m=new int[2*N-1][2*N-1]; { int v=1; int center=(2*N-1)/2; for(int i=0;i<N;++i) { int x=(2*N-1)/2-i; int y=i; for(int j=0;j<N;++j) { m[y++][x++]=v++; } } for(int i=0;i<2*N-1;++i) { for(int j=0;j<2*N-1;++j) { if(m[i][j]==0)continue; if(center-i>N/2) { m[i+N][j]=m[i][j]; } if(i-center>N/2) { m[i-N][j]=m[i][j]; } if(center-j>N/2) { m[i][j+N]=m[i][j]; } if(j-center>N/2) { m[i][j-N]=m[i][j]; } } } } int[][] ret=new int[N][N]; for(int i=0;i<N;++i) { ret[i]=Arrays.copyOfRange(m[i+N/2], N/2, N/2+N); } return ret; } int[][] magic_square(int N){ if(N%2==1)return magic_square_odd(N); else if(N%4==0)return magic_square_four(N); else return magic_square_LUX(N); } public void run() { FastScanner sc=new FastScanner(); int N=sc.nextInt(); int[][] m=magic_square(N); for(int i=0;i<m.length;++i) { for(int j=0;j<m[i].length;++j) { System.out.print(m[i][j]+(j==m[i].length-1?"\n":" ")); } } } 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;} public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; 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() { long nl = nextLong(); if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException(); return (int) nl; } public double nextDouble() { return Double.parseDouble(next());} }