結果
問題 | No.278 連続する整数の和(2) |
ユーザー | uwi |
提出日時 | 2015-09-08 05:26:59 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 69 ms / 2,000 ms |
コード長 | 2,968 bytes |
コンパイル時間 | 3,936 ms |
コンパイル使用メモリ | 86,808 KB |
実行使用メモリ | 37,720 KB |
最終ジャッジ日時 | 2024-06-02 11:48:44 |
合計ジャッジ時間 | 5,115 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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 | 47 ms
36,756 KB |
testcase_01 | AC | 46 ms
36,864 KB |
testcase_02 | AC | 66 ms
37,548 KB |
testcase_03 | AC | 44 ms
37,100 KB |
testcase_04 | AC | 46 ms
36,804 KB |
testcase_05 | AC | 48 ms
36,884 KB |
testcase_06 | AC | 47 ms
36,952 KB |
testcase_07 | AC | 47 ms
36,764 KB |
testcase_08 | AC | 68 ms
37,644 KB |
testcase_09 | AC | 65 ms
37,480 KB |
testcase_10 | AC | 69 ms
37,704 KB |
testcase_11 | AC | 69 ms
37,568 KB |
testcase_12 | AC | 45 ms
36,888 KB |
testcase_13 | AC | 67 ms
37,544 KB |
testcase_14 | AC | 66 ms
37,592 KB |
testcase_15 | AC | 63 ms
37,644 KB |
testcase_16 | AC | 61 ms
37,720 KB |
testcase_17 | AC | 65 ms
37,308 KB |
ソースコード
package q7xx; 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 Q745 { InputStream is; PrintWriter out; String INPUT = ""; void solve() { long x = nl(); if(x % 2 == 0)x /= 2; long ret = 0; for(long i = 1;i*i <= x;i++){ if(x % i == 0){ ret += i; if(i*i < x){ ret += x/i; } } } out.println(ret); } 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 Q745().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)); } }