結果
問題 | No.1844 Divisors Sum Sum |
ユーザー | 37zigen |
提出日時 | 2022-02-18 22:40:17 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 1,146 ms / 3,000 ms |
コード長 | 2,984 bytes |
コンパイル時間 | 2,199 ms |
コンパイル使用メモリ | 74,740 KB |
実行使用メモリ | 55,128 KB |
最終ジャッジ日時 | 2023-09-11 19:41:32 |
合計ジャッジ時間 | 20,867 ms |
ジャッジサーバーID (参考情報) |
judge15 / judge14 |
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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 | 1,146 ms
55,128 KB |
testcase_01 | AC | 1,122 ms
54,456 KB |
testcase_02 | AC | 1,120 ms
54,676 KB |
testcase_03 | AC | 1,125 ms
54,656 KB |
testcase_04 | AC | 1,122 ms
54,720 KB |
testcase_05 | AC | 1,123 ms
54,780 KB |
testcase_06 | AC | 1,121 ms
54,708 KB |
testcase_07 | AC | 1,123 ms
54,520 KB |
testcase_08 | AC | 1,126 ms
54,876 KB |
testcase_09 | AC | 1,123 ms
54,976 KB |
testcase_10 | AC | 1,038 ms
54,760 KB |
testcase_11 | AC | 277 ms
52,000 KB |
testcase_12 | AC | 818 ms
54,696 KB |
testcase_13 | AC | 181 ms
52,460 KB |
testcase_14 | AC | 416 ms
52,416 KB |
testcase_15 | AC | 45 ms
49,472 KB |
testcase_16 | AC | 44 ms
49,372 KB |
testcase_17 | AC | 44 ms
49,460 KB |
testcase_18 | AC | 44 ms
49,444 KB |
testcase_19 | AC | 44 ms
49,448 KB |
testcase_20 | AC | 44 ms
49,184 KB |
testcase_21 | AC | 44 ms
49,360 KB |
testcase_22 | AC | 45 ms
49,084 KB |
testcase_23 | AC | 45 ms
49,404 KB |
testcase_24 | AC | 45 ms
49,432 KB |
testcase_25 | AC | 44 ms
49,188 KB |
testcase_26 | AC | 43 ms
48,996 KB |
testcase_27 | AC | 44 ms
49,428 KB |
testcase_28 | AC | 44 ms
49,000 KB |
testcase_29 | AC | 45 ms
49,208 KB |
testcase_30 | AC | 44 ms
49,412 KB |
testcase_31 | AC | 44 ms
49,380 KB |
testcase_32 | AC | 44 ms
48,996 KB |
testcase_33 | AC | 44 ms
49,004 KB |
testcase_34 | AC | 44 ms
49,976 KB |
testcase_35 | AC | 44 ms
49,292 KB |
testcase_36 | AC | 43 ms
49,464 KB |
testcase_37 | AC | 44 ms
49,264 KB |
ソースコード
import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.NoSuchElementException; class Main { public static void main(String[] args) { new Main().run(); } void run() { solve(); } long mod=(long)1e9+7; long pow(long a, long n) { if (n==0) return 1; return pow(a*a%mod,n/2) * (n%2==1?a:1) %mod; } long inv(long a) { return pow(a, mod-2); } long sum(long x,long e) { return (1-pow(x,e+1)-(1-x)*pow(x,e)%mod*(e+1)%mod)%mod * inv((1-x)*(1-x)%mod) % mod; } long f(long p, long e) { return pow(p,e)*sum(inv(p),e+1)%mod; } void solve() { FastScanner sc=new FastScanner(); PrintWriter pw=new PrintWriter(System.out); long ans=1; int L=sc.nextInt(); for (int i=0;i<L;++i) { long p=sc.nextLong(); long e=sc.nextLong(); ans=ans*f(p,e)%mod; } ans=(ans%mod+mod)%mod; System.out.println(ans); pw.close(); } 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;} 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(); } }