Ordered Fractions Consider the set of all reduced fractions between 0 and 1 inclusive with denominators less than or equal to N. Here is the set when N = 5: 0/1 1/5 1/4 1/3 2/5 1/2 3/5 2/3 3/4 4/5 1/1 Write a program that, given an integer N between…

frac1解题报告 —— icedream61 博客园(转载请注明出处)------------------------------------------------------------------------------------------------------------------------------------------------[题目] 给你N,对于所有的既约分数i/j(1<=j<=N,0<=i<=j),升序排列输出(重复则只留j最小的).[数据范围]…

P1458 顺序的分数 Ordered Fractions 151通过 203提交 题目提供者该用户不存在 标签USACO 难度普及- 提交  讨论  题解 最新讨论 暂时没有讨论 题目描述 输入一个自然数N,对于一个最简分数a/b(分子和分母互质的分数),满足1<=b<=N,0<=a/b<=1,请找出所有满足条件的分数. 这有一个例子,当N=5时,所有解为: 0/1 1/5 1/4 1/3 2/5 1/2 3/5 2/3 3/4 4/5 1/1 给定一个自然数N,1<=n&…

P1458 顺序的分数 Ordered Fractions 题目描述 输入一个自然数N,对于一个最简分数a/b(分子和分母互质的分数),满足1<=b<=N,0<=a/b<=1,请找出所有满足条件的分数. 这有一个例子,当N=5时,所有解为: 0/1 1/5 1/4 1/3 2/5 1/2 3/5 2/3 3/4 4/5 1/1 给定一个自然数N,1<=n<=160,请编程按分数值递增的顺序输出所有解. 注:①0和任意自然数的最大公约数就是那个自然数②互质指最大公约数等于…

P1458 顺序的分数 Ordered Fractions 题目描述 输入一个自然数N,对于一个最简分数a/b(分子和分母互质的分数),满足1<=b<=N,0<=a/b<=1,请找出所有满足条件的分数. 这有一个例子,当N=5时,所有解为: 0/1 1/5 1/4 1/3 2/5 1/2 3/5 2/3 3/4 4/5 1/1 给定一个自然数N,1<=n<=160,请编程按分数值递增的顺序输出所有解. 注:①0和任意自然数的最大公约数就是那个自然数②互质指最大公约数等于…

/* TASK: frac1 LANG: C++ URL: http://train.usaco.org/usacoprob2?S=frac1&a=dbgwn5v2WLr SOLVE: 直接枚举,约分,排序,去重 */ #include<cstdio> #include<algorithm> using namespace std; struct node{ int nu,deno; double v; }a[40000]; int n,cnt; int cmp(node…

首先看一下题目 Consider the set of all reduced fractions between 0 and 1 inclusive with denominators less than or equal to N. Here is the set when N = 5: 0/1 1/5 1/4 1/3 2/5 1/2 3/5 2/3 3/4 4/5 1/1 Write a program that, given an integer N between 1 and 160…

/* ID: lucien23 PROG: frac1 LANG: C++ */ #include <iostream> #include <fstream> #include <vector> #include <algorithm> using namespace std; typedef struct Fraction { int numerator; int denominator; Fraction(){} Fraction(int x, int…

题目 题目描述 给定一个数N(1<=N<=160),需要产生所有的分数,这些分数的值必须要在0~1之间.而且每个分数的分母不能超过N.如下例所示: N = 5 产生所有的分数:0/1 1/5 1/4 1/3 2/5 1/2 3/5 2/3 3/4 4/5 1/1 样例输入 5 样例输出 0/1 1/5 1/4 1/3 2/5 1/2 3/5 2/3 3/4 4/5 1/1 解题思路 这个题目最一开始我走了一些弯路,想得太复杂,结果第一发就超时了.后来静下心来算了想了下,发现枚举加排序速度就已经…

题目链接:http://acm.swust.edu.cn/problem/801/ Time limit(ms): 1000 Memory limit(kb): 10000   Description Consider the set of all reduced fractions between 0 and 1 inclusive with denominators less than or equal to N. Here is the set when N = 5: 0/1 1/5 1/…