更新1: 在每个人的帮助下,我都能得到: - 我想提出的一点,每个int都需要一个新的定义角色。请看下面的内容,了解答案中的错误以及我的解决方案。
如果有人可以帮助我使这个脚本连续?我的意思是,在完成一个表达式并显示所有解决方案之后,用户应该能够继续并继续使用脚本直到他们想要退出。基本上,我如何循环这整个事情,以便在一次用户输入后不会结束?
#include<stdio.h>
#include<math.h>
#include<string.h>
int gcd(int a, int b) {
while(0!=b) { int r = a % b; a=b; b=r; }
return a;
}
int input(char* prompt) {
int res;
printf("%s: ", prompt);
scanf("%d", &res);
return res;
}
main()
{
int add,sub,mul,dd;
int add1,sub1,mul1,dd1;
int a,b,c,d;
a=input("Please enter the numerator for your first equation");
b=input("Please enter the denominator for your first equation");
c=input("Please enter the numerator for your second equation");
d=input("Please enter the denominator for your second equation");
add=(a*d+b*c);
add1=(b*d);
int fac = gcd(add, add1);
add /=fac;
add1 /=fac;
printf("\The sum of your fractions is: %d/%d",add,add1);
sub=(a*d-b*c);
sub1=(b*d);
int red = gcd(sub, sub1);
sub /=red;
sub1 /=red;
printf("\nThe difference of your fractions is: %d/%d",sub,sub1);
mul=(a*c);
mul1=(b*d);
int red1 = gcd(mul, mul1);
mul /=red1;
mul1 /=red1;
printf("\nThe product of your fractions is: %d/%d",mul,mul1);
dd=(a*d);
dd1=(b*c);
int red2 = gcd(dd, dd1);
dd /=red2;
dd1 /=red2;
printf("\nThe quotient of your fractions is: %d/%d",dd,dd1);
}
答案 0 :(得分:2)
您需要为每个特定情况重新计算您的gcd,然后除以:
add=(a*d+b*c);
add1=(b*d);
int fac = gcd(add, add1);
add /=fac;
add1/=fac;
printf("\The sum of your fractions is: %d/%d",add,add1);
sub=(a*d-b*c);
sub1=(b*d);
fac = gcd(sub,sub1);
sub /= fac;
sub1 /= fac;
等
答案 1 :(得分:0)
简化分数:
void simp(int *num, int *den)
{
int i;
int lim = (*num < *den) ? *num : *den;
for (i = 2; i < lim; ++i)
if (*num % i == 0 && *den % i == 0) {
*num /= i;
*den /= i;
}
}