結果
問題 | No.951 【本日限定】1枚頼むともう1枚無料! |
ユーザー | uwi |
提出日時 | 2019-12-14 00:15:36 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 585 ms / 2,000 ms |
コード長 | 4,198 bytes |
コンパイル時間 | 7,912 ms |
コンパイル使用メモリ | 79,480 KB |
実行使用メモリ | 56,940 KB |
最終ジャッジ日時 | 2023-09-10 07:40:05 |
合計ジャッジ時間 | 23,627 ms |
ジャッジサーバーID (参考情報) |
judge13 / judge12 |
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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 | 44 ms
49,444 KB |
testcase_01 | AC | 45 ms
49,852 KB |
testcase_02 | AC | 46 ms
49,380 KB |
testcase_03 | AC | 45 ms
49,388 KB |
testcase_04 | AC | 44 ms
49,560 KB |
testcase_05 | AC | 45 ms
49,444 KB |
testcase_06 | AC | 45 ms
49,568 KB |
testcase_07 | AC | 43 ms
47,428 KB |
testcase_08 | AC | 44 ms
49,716 KB |
testcase_09 | AC | 119 ms
55,728 KB |
testcase_10 | AC | 106 ms
55,064 KB |
testcase_11 | AC | 105 ms
54,864 KB |
testcase_12 | AC | 207 ms
55,900 KB |
testcase_13 | AC | 437 ms
54,668 KB |
testcase_14 | AC | 166 ms
55,908 KB |
testcase_15 | AC | 159 ms
56,004 KB |
testcase_16 | AC | 194 ms
55,948 KB |
testcase_17 | AC | 213 ms
56,412 KB |
testcase_18 | AC | 44 ms
49,644 KB |
testcase_19 | AC | 43 ms
49,436 KB |
testcase_20 | AC | 44 ms
49,372 KB |
testcase_21 | AC | 98 ms
54,580 KB |
testcase_22 | AC | 79 ms
54,344 KB |
testcase_23 | AC | 90 ms
54,752 KB |
testcase_24 | AC | 568 ms
56,432 KB |
testcase_25 | AC | 568 ms
56,408 KB |
testcase_26 | AC | 567 ms
56,548 KB |
testcase_27 | AC | 564 ms
56,580 KB |
testcase_28 | AC | 585 ms
56,496 KB |
testcase_29 | AC | 533 ms
56,736 KB |
testcase_30 | AC | 44 ms
49,644 KB |
testcase_31 | AC | 43 ms
49,468 KB |
testcase_32 | AC | 85 ms
54,572 KB |
testcase_33 | AC | 94 ms
55,172 KB |
testcase_34 | AC | 123 ms
55,140 KB |
testcase_35 | AC | 571 ms
56,204 KB |
testcase_36 | AC | 572 ms
56,544 KB |
testcase_37 | AC | 570 ms
56,708 KB |
testcase_38 | AC | 567 ms
56,380 KB |
testcase_39 | AC | 571 ms
56,684 KB |
testcase_40 | AC | 567 ms
56,360 KB |
testcase_41 | AC | 568 ms
56,472 KB |
testcase_42 | AC | 565 ms
56,392 KB |
testcase_43 | AC | 563 ms
56,436 KB |
testcase_44 | AC | 563 ms
56,648 KB |
testcase_45 | AC | 560 ms
56,416 KB |
testcase_46 | AC | 529 ms
56,452 KB |
testcase_47 | AC | 532 ms
56,716 KB |
testcase_48 | AC | 530 ms
56,472 KB |
testcase_49 | AC | 531 ms
56,380 KB |
testcase_50 | AC | 531 ms
56,464 KB |
testcase_51 | AC | 531 ms
56,940 KB |
testcase_52 | AC | 422 ms
56,352 KB |
testcase_53 | AC | 572 ms
56,364 KB |
testcase_54 | AC | 506 ms
56,184 KB |
ソースコード
package adv2019; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.Comparator; import java.util.InputMismatchException; public class D14 { InputStream is; PrintWriter out; String INPUT = ""; void solve() { int n = ni(), K = ni(); int[][] pd = new int[n][]; for(int i = 0;i < n;i++){ pd[i] = na(2); } Arrays.sort(pd, new Comparator<int[]>() { public int compare(int[] a, int[] b) { return -(a[0] - b[0]); } }); // (i, j, k) = (iまでみたときj枚余裕があって、k円) // (j, k) -> (j+1, k+p[i]) + d[i] // (j, k) -> (j-1, k) + d[i] long[][] dp = new long[2][K+1]; Arrays.fill(dp[0], -Long.MAX_VALUE / 3); Arrays.fill(dp[1], -Long.MAX_VALUE / 3); dp[0][0] = 0; for(int i = 0;i < n;i++){ long[][] ndp = new long[2][K+1]; Arrays.fill(ndp[0], -Long.MAX_VALUE / 3); Arrays.fill(ndp[1], -Long.MAX_VALUE / 3); for(int j = 0;j < 2;j++){ for(int k = 0;k <= K;k++){ ndp[j][k] = Math.max(ndp[j][k], dp[j][k]); if(j == 0 && k+pd[i][0] <= K){ ndp[1][k+pd[i][0]] = Math.max(ndp[1][k+pd[i][0]], dp[0][k] + pd[i][1]); } if(j == 1){ ndp[0][k] = Math.max(ndp[0][k], dp[1][k] + pd[i][1]); } } } dp = ndp; } long max = 0; for(int i = 0;i <= K;i++){ max = Math.max(max, dp[0][i]); max = Math.max(max, dp[1][i]); } 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"); // Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){ // @Override // public void run() { // long s = System.currentTimeMillis(); // solve(); // out.flush(); // if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // } // }; // t.start(); // t.join(); } public static void main(String[] args) throws Exception { new D14().run(); } private byte[] inbuf = new byte[1024]; public 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 int[] na(int n) { int[] a = new int[n]; for(int i = 0;i < n;i++)a[i] = ni(); return a; } private long[] nal(int n) { long[] a = new long[n]; for(int i = 0;i < n;i++)a[i] = nl(); return a; } 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[][] nmi(int n, int m) { int[][] map = new int[n][]; for(int i = 0;i < n;i++)map[i] = na(m); return map; } private int ni() { return (int)nl(); } 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)); } }