标签：start file sample output imp cat html where ==
Given N rational numbers in the form numerator/denominator, you are supposed to calculate their sum.
Each input file contains one test case. Each case starts with a positive integer N (≤100), followed in the next line N rational numbers a1/b1 a2/b2 ... where all the numerators and denominators are in the range of long int. If there is a negative number, then the sign must appear in front of the numerator.
For each test case, output the sum in the simplest form integer numerator/denominator where integer is the integer part of the sum, numerator < denominator, and the numerator and the denominator have no common factor. You must output only the fractional part if the integer part is 0.
5
2/5 4/15 1/30 -2/60 8/3
3 1/3
2
4/3 2/3
2
3
1/3 -1/6 1/8
7/24
1 package pattest; 2 3 import java.io.BufferedReader; 4 import java.io.IOException; 5 import java.io.InputStreamReader; 6 7 /** 8 * @Auther: Xingzheng Wang 9 * @Date: 2019/2/26 21:26 10 * @Description: pattest 11 * @Version: 1.0 12 */ 13 public class PAT1081 { 14 public static void main(String[] args) throws IOException { 15 BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); 16 String n = reader.readLine(); 17 String[] s1 = reader.readLine().split(" "); 18 String[] s2 = s1[0].split("/"); 19 int a = Integer.parseInt(s2[0]), b = Integer.parseInt(s2[1]), sum = 0; 20 for (int i = 1; i < Integer.parseInt(n); i++) { 21 String[] s = s1[i].split("/"); 22 int atemp = Integer.parseInt(s[0]); 23 int btemp = Integer.parseInt(s[1]); 24 a = a * btemp + atemp * b; 25 b = b * btemp; 26 int c = GCD(a, b); 27 a = a / c; 28 b = b / c; 29 } 30 if (a % b == 0) { 31 System.out.print(a / b); 32 } else { 33 if (Math.abs(a) > Math.abs(b)) { 34 if (a > 0) { 35 System.out.printf("%d %d/%d", a / b, a - a / b * b, b); 36 } else { 37 a = -a; 38 System.out.printf("-%d %d/%d", a / b, a - a / b * b, b); 39 } 40 } else { 41 System.out.printf("%d/%d", a - a / b * b, b); 42 } 43 } 44 } 45 46 private static int GCD(int m, int n) { 47 return n == 0 ? m : GCD(n, m % n); 48 } 49 }
[PAT] 1081 Rational Sum （20 分）Java
标签：start file sample output imp cat html where ==
原文地址：https://www.cnblogs.com/PureJava/p/10498125.html
