結果
問題 | No.291 黒い文字列 |
ユーザー |
|
提出日時 | 2015-10-16 22:31:49 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 916 ms / 2,000 ms |
コード長 | 4,587 bytes |
コンパイル時間 | 5,696 ms |
コンパイル使用メモリ | 85,516 KB |
実行使用メモリ | 49,064 KB |
最終ジャッジ日時 | 2024-07-21 19:12:10 |
合計ジャッジ時間 | 21,505 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 26 |
ソースコード
package contest;import java.io.ByteArrayInputStream;import java.io.IOException;import java.io.InputStream;import java.io.PrintWriter;import java.util.Arrays;import java.util.InputMismatchException;public class Q622 {InputStream is;PrintWriter out;String INPUT = "";void solve(){char[] s = ns().toCharArray();int[][][][] pre = new int[21][21][21][21];int[][][][] cur = new int[21][21][21][21];for(int i = 0;i < 21;i++){for(int j = 0;j < 21;j++){for(int k = 0;k < 21;k++){for(int l = 0;l < 21;l++){pre[i][j][k][l] = -999999;}}}}pre[0][0][0][0] = 0;for(char c : s){for(int i = 0;i < 21;i++){for(int j = 0;j < 21;j++){for(int k = 0;k < 21;k++){for(int l = 0;l < 21;l++){cur[i][j][k][l] = -999999;}}}}for(int i = 0;i < 21;i++){for(int j = 0;j < 21;j++){for(int k = 0;k < 21;k++){for(int l = 0;l < 21;l++){if(c == 'K' || c == '?'){int ni = Math.min(i+1, 20);cur[ni][j][k][l] = Math.max(cur[ni][j][k][l], pre[i][j][k][l]);}if((c == 'U' || c == '?') && i >= 1){int nj = Math.min(j+1, 20);cur[i-1][nj][k][l] = Math.max(cur[i-1][nj][k][l], pre[i][j][k][l]);}if((c == 'R' || c == '?') && j >= 1){int nk = Math.min(k+1, 20);cur[i][j-1][nk][l] = Math.max(cur[i][j-1][nk][l], pre[i][j][k][l]);}if((c == 'O' || c == '?') && k >= 1){int nl = Math.min(l+1, 20);cur[i][j][k-1][nl] = Math.max(cur[i][j][k-1][nl], pre[i][j][k][l]);}if((c == 'I' || c == '?') && l >= 1){cur[i][j][k][l-1] = Math.max(cur[i][j][k][l-1], pre[i][j][k][l] + 1);}cur[i][j][k][l] = Math.max(cur[i][j][k][l], pre[i][j][k][l]);}}}}int[][][][] dum = pre; pre = cur; cur = dum;}int max = 0;for(int i = 0;i < 21;i++){for(int j = 0;j < 21;j++){for(int k = 0;k < 21;k++){for(int l = 0;l < 21;l++){max = Math.max(max, pre[i][j][k][l]);}}}}out.println(max);}void run() throws Exception{is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());out = new PrintWriter(System.out);long s = System.currentTimeMillis();solve();out.flush();if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");}public static void main(String[] args) throws Exception { new Q622().run(); }private byte[] inbuf = new byte[1024];private int lenbuf = 0, ptrbuf = 0;private int readByte(){if(lenbuf == -1)throw new InputMismatchException();if(ptrbuf >= lenbuf){ptrbuf = 0;try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); }if(lenbuf <= 0)return -1;}return inbuf[ptrbuf++];}private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); }private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; }private double nd() { return Double.parseDouble(ns()); }private char nc() { return (char)skip(); }private String ns(){int b = skip();StringBuilder sb = new StringBuilder();while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ')sb.appendCodePoint(b);b = readByte();}return sb.toString();}private char[] ns(int n){char[] buf = new char[n];int b = skip(), p = 0;while(p < n && !(isSpaceChar(b))){buf[p++] = (char)b;b = readByte();}return n == p ? buf : Arrays.copyOf(buf, p);}private char[][] nm(int n, int m){char[][] map = new char[n][];for(int i = 0;i < n;i++)map[i] = ns(m);return map;}private int[] na(int n){int[] a = new int[n];for(int i = 0;i < n;i++)a[i] = ni();return a;}private int ni(){int num = 0, b;boolean minus = false;while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));if(b == '-'){minus = true;b = readByte();}while(true){if(b >= '0' && b <= '9'){num = num * 10 + (b - '0');}else{return minus ? -num : num;}b = readByte();}}private long nl(){long num = 0;int b;boolean minus = false;while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));if(b == '-'){minus = true;b = readByte();}while(true){if(b >= '0' && b <= '9'){num = num * 10 + (b - '0');}else{return minus ? -num : num;}b = readByte();}}private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); }}