Problem:
Example 066
Problem: Input three numbers a, b, c, and output them in order of size.
Program Analysis: Use pointer method.
NEXT
Solution:
# include<stdio.h>
void swap(int *, int *);
int main(void)
{
int a, b, c;
int *p1, *p2, *p3;
printf(“Input a, b, c:\n”);
scanf(“%d %d %d”, &a, &b, &c);
p1 = &a;
p2 = &b;
p3 = &c;
if(a>b)
swap(p1, p2);
if(a>c)
swap(p1, p3);
if(b>c)
swap(p2, p3);
printf(“%d %d %d\n”, a, b, c);
}
void swap(int *s1, int *s2)
{
int t;
t = *s1; *s1 = *s2; *s2 = t;
}
NEXT
The output result of the above code is:
Input a, b, c:
1 3 2
1 2 3
END
June 3, 2025, Tuesday
Be diligent and achieve self-improvement
Layout | Gu Yongjian
Typesetting | Gu Yongjian
Editor | Han Xinran, Zeng Xiangyu
Review | Shi Ling, Qiao Shan
