1. 给定两个整形变量的值,将两个值的内容进行交换。
#include<stdio.h>
#include<stdlib.h>
int mian()
{
int temp;
int x = 6;
int y = 7;
printf("x = %d\n,y = %d\n", x, y);
temp = x;
x = y;
y = temp;
printf("x = %d\n,y = %d\n", x, y);
system("pause");
return 0;
}
2. 不允许创建临时变量,交换两个数的内容
#include<stdio.h>
int main()
{
int a = 5;
int b = 6;
printf("a = %d,b = %d\n", a, b);
a = a + b;
b = a - b;
a = a - b;
printf("a = %d,b = %d\n", a, b);
system("pause");
return 0;
}
4.将三个数按从大到小输出
#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<stdlib.h>
int main()
{
int a, b, c;
scanf("%d %d %d\n", &a, &b, &c);
int tmp;
if (a < b)
{
tmp = a;
a = b;
b = tmp;
}
if (b < c)
{
tmp = b;
b = c;
c = tmp;
}
if (a < c)
{
tmp = a;
a = c;
c = tmp;
}
printf("%d %d %d", a, b, c);
system("pause");
return 0;
}
5.求两个数的最大公约数
#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<stdlib.h>
#include<math.h>
int main()
{
int a, b;
int c;
scanf("%d%d", &a,&b);
c = a % b;
while (c)
{
a = b;
b = c;
c = a % b;
}
printf("%d\n", b);
system("pause");
return 0;
}