#include<iostream> using namespace std; //不推荐用goto,当然用它更快 //辗转相除法求两数的最大公约数 int gcd(long int a,long int b){ int x=a<b?a:b; //获得较小者,用来做循环的约束值 ;i<x;x++){ //循环 if(a>b){ int r=a%b;//取余数 ){//能否整除判断 return b;//可以便输出 }else{//否则进行下一轮的算法 a=b,b=r; } }…
两个数的最大公约数:不能大于两个数中的最小值,算法口诀:小的给大的,余数给小的,整除返回小的,即最大公约数,(res=max%min)==0? max=min,min=res return min; 两个数的最小公倍数:等于两数之和除以两个数的最大公约数 a*b/(LCM(a,b)); #include <iostream> using namespace std; /*求最大公约数,辗转相除法来求最小公倍数*/ int getLCM(int a, int b) { int max = (a…
Description The least common multiple (LCM) of a set of positive integers is the smallest positive integer which is divisible by all the numbers in the set. For example, the LCM of 5, 7 and 15 is 105. Input Input will consist…
#include<stdio.h> #include<string.h> #include<string.h> ],str2[]; int len; int cal(char *str1,char *str2) { ,i; ;str1[i]&&str2[i];i++) { if(str1[i]==str2[i]) ret++; } return ret; } int max(int a, int b) { int z; z=(a>b)?a:b; r…
辗转相除法,又称欧几里得算法.两个正整数a和b(a>b),它们的最大公约数等于余数c和较小的数b之间的最大公约数.最小公倍数=两数之积/最大公约数 #include <stdio.h> int get1(int a, int b) { if (a < b) { int c = a; a = b; b = c; } while (a%b != 0) { b = a%b; a = b; } return b; } int get2(int a,int b) { return a*b /…
Least Common Multiple (HDU - 1019) [简单数论][LCM][欧几里得辗转相除法] 标签: 入门讲座题解 数论 题目描述 The least common multiple (LCM) of a set of positive integers is the smallest positive integer which is divisible by all the numbers in the set. For example, the LCM of 5, 7…
