自己做老是错的·帮帮忙

发布网友发布时间：2023-08-02 12:57

共2个回答

热心网友时间：2023-09-19 16:29

#include <stdio.h>
void menu(int *a, int *b, int *c, int *d, char *op);
void addFractions(int a, int b, int c, int d, int *e, int *f);
void subFractions(int a, int b, int c, int d, int *e, int *f);
void mulFractions(int a, int b, int c, int d, int *e, int *f);
void divFractions(int a, int b, int c, int d, int *e, int *f);
void simFractions(int a, int b);
int *(int a, int b);/* greatest common divisor */
int lcm(int a, int b);/* least common multiple */
void main()
{
int a,b,c,d,e,f;/* a/b and c/d, b!=0, d!=0 */
char op; /* (+,-,*,/) */

menu(&a,&b,&c,&d,&op);

printf("\n%d/%d%c%d/%d", a, b, op, c, d);

switch(op)
{
case '+':addFractions(a,b,c,d,&e,&f);break;
case '-':subFractions(a,b,c,d,&e,&f);break;
case '*':mulFractions(a,b,c,d,&e,&f);break;
case '/':divFractions(a,b,c,d,&e,&f);break;
default:break;
}

simFractions(e,f);

getch();
}

void menu(int *a, int *b, int *c, int *d, char *op)
{
while(1)
{
printf("Please input 4 integers 'a/b,c/d':");
if(scanf("%d/%d,%d/%d", a, b, c, d) && (*b)*(*d) != 0) break;
}
while(1)
{
printf("Please select an operation(+ - * /):");
*op=getch();
if(*op == '+' || *op == '-' || *op == '*' || *op == '/') break;
}
}

void addFractions(int a, int b, int c, int d, int *e, int *f)
{
*e = a*d+c*b;
*f = b*d;
}

void subFractions(int a, int b, int c, int d, int *e, int *f)
{
*e = a*d - c*b;
*f = b*d;
}

void mulFractions(int a, int b, int c, int d, int *e, int *f)
{
*e = a*c;
*f = b*d;
}

void divFractions(int a, int b, int c, int d, int *e, int *f)
{
*e = a*d;
*f = b*c;
}

void simFractions(int a, int b)
{
int t;

if (a==0)
{
printf(" = 0.0\n");
return;
}

t = *(a,b);

if(t!=1)
{
printf(" = %d/%d", a, b);
}

a = a/t;
b = b/t;

printf(" = %d/%d = %f\n", a, b, (float)a/b );

return;
}

int *(int a, int b)
{
int t;
if(a<b) {t=a;a=b;b=t;}

while(a%b)
{
t=a%b;
a=b;
b=t;
}
return b;
}

int lcm(int a, int b)
{
return (a*b)/*(a,b);
}

热心网友时间：2023-09-19 16:30

？？？！
呵呵，才疏学浅。和LZ一起期待答案