結果
問題 |
No.265 数学のテスト
|
ユーザー |
|
提出日時 | 2020-04-02 15:58:52 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 123 ms / 2,000 ms |
コード長 | 3,385 bytes |
コンパイル時間 | 2,389 ms |
コンパイル使用メモリ | 80,328 KB |
実行使用メモリ | 40,240 KB |
最終ジャッジ日時 | 2024-06-28 15:06:30 |
合計ジャッジ時間 | 7,210 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 32 |
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.NoSuchElementException; import java.util.Scanner; class Main { public static void main(String[] args) { new Main().run(); } final long MOD=(long)1e9+7; long[] fac=new long[20]; { fac[0]=1; for(int i=1;i<fac.length;++i)fac[i]=i*fac[i-1]; } boolean number(char c) { return 0<=(int)(c-'0')&&(int)(c-'0')<=9; } void run() { FastScanner sc=new FastScanner(); int N=sc.nextInt(); int d=sc.nextInt(); long[] ans=new long[d+1]; char[] cs=sc.next().toCharArray(); int op=0; for(int i=0;i<cs.length;++i) { if(cs[i]=='d'||cs[i]=='+')continue; if(cs[i]=='{')++op; else if(cs[i]=='}')--op; else { int coe=1; int deg=0; int j=i; while(true) { if(cs[j]=='x')++deg; else if(number(cs[j]))coe*=(int)(cs[j]-'0'); if(j+1<cs.length&&(cs[j+1]=='x'||cs[j+1]=='*'||number(cs[j+1])))++j; else break; } i=j; if(deg<op)continue; coe*=fac[deg]/fac[deg-op]; deg-=op; ans[deg]+=coe; } } for(int i=0;i<ans.length;++i) { System.out.print(ans[i]+(i==ans.length-1?"\n":" ")); } } static 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());} }