結果
問題 | No.54 Happy Hallowe'en |
ユーザー | 37zigen |
提出日時 | 2020-04-22 17:55:40 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 337 ms / 5,000 ms |
コード長 | 3,432 bytes |
コンパイル時間 | 2,698 ms |
コンパイル使用メモリ | 81,516 KB |
実行使用メモリ | 68,220 KB |
最終ジャッジ日時 | 2024-10-11 22:01:05 |
合計ジャッジ時間 | 7,921 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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 | 146 ms
68,220 KB |
testcase_01 | AC | 145 ms
68,180 KB |
testcase_02 | AC | 144 ms
58,476 KB |
testcase_03 | AC | 142 ms
58,388 KB |
testcase_04 | AC | 210 ms
60,204 KB |
testcase_05 | AC | 233 ms
59,764 KB |
testcase_06 | AC | 247 ms
60,100 KB |
testcase_07 | AC | 281 ms
60,772 KB |
testcase_08 | AC | 309 ms
60,368 KB |
testcase_09 | AC | 337 ms
59,864 KB |
testcase_10 | AC | 148 ms
58,448 KB |
testcase_11 | AC | 148 ms
58,432 KB |
testcase_12 | AC | 285 ms
59,712 KB |
testcase_13 | AC | 279 ms
59,724 KB |
testcase_14 | AC | 146 ms
58,420 KB |
testcase_15 | AC | 145 ms
58,408 KB |
testcase_16 | AC | 156 ms
58,840 KB |
testcase_17 | AC | 157 ms
58,956 KB |
testcase_18 | AC | 146 ms
58,384 KB |
ソースコード
import java.io.IOException; import java.io.InputStream; import java.math.BigInteger; import java.util.Arrays; import java.util.Comparator; import java.util.NoSuchElementException; public class Main { public static void main(String[] args) { new Main().run(); } final long MOD=(long)1e9+7; int gcd(int a,int b) { return a==0?b:gcd(b%a,a); } long pow(long a,long n) { return n==0?1:(pow(a*a%MOD,n/2)*(n%2==1?a:1))%MOD; } long inv(long a) { return pow(a,MOD-2); } int MAX=(int)1e6+1; long[] fac=new long[MAX]; long[] ifac=new long[MAX]; int[] cnt_divs=new int[MAX]; { fac[0]=1; for (int i=1;i<MAX;++i) fac[i]=i*fac[i-1]%MOD; ifac[MAX-1]=inv(fac[MAX-1]); for (int i=MAX-1;i>=1;--i) ifac[i-1]=ifac[i]*i%MOD; for (int i=2;i<MAX;++i) { for (int j=i;j<MAX;j+=i) { ++cnt_divs[j]; } } } void run() { FastScanner sc=new FastScanner(); int N=sc.nextInt(); int[][] query=new int[N][2]; int TMAX=20000; boolean[] dp=new boolean[TMAX+1]; dp[0]=true; for (int i=0;i<N;++i) { query[i][0]=sc.nextInt(); query[i][1]=sc.nextInt(); } Arrays.sort(query,Comparator.comparing(v->(v[0]+v[1]))); for (int i=0;i<N;++i) { for (int t=query[i][1]-1;t>=0;--t) { if (!dp[t]) continue; dp[t+query[i][0]]|=dp[t]; } } long ans=0; for (int t=TMAX;t>=0;--t) if(dp[t]) { ans=t; break; } System.out.println(ans); } 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(); } }