c語言程式比大小

December 31, 2010

二數從大到小

#include
#include

int main(void)

{
   int a,b;
   void sort(int,int);

   scanf("%d",&a);
   scanf("%d",&b);

   sort(a,b);

   system("pause");
   return 0 ;
}

void sort(int a,int b)

{
   if(a>b)
   {
   printf("The order =%d %d\n",a,b);
   }

   else
   {
   printf("The order =%d %d\n",b,a);
   }
}
顯示三數的大小關係

第一種複雜的寫法-三數排列

1.

#include
#include

int main(void)
{
   int a,b,c;
   void sort(int,int,int);

   scanf("%d",&a);
   scanf("%d",&b);
   scanf("%d",&c);

   sort(a,b,c);

   system("pause");
   return 0;
}

void sort(int a,int b,int c)
{
   if (a>b)
   {
   if (b>c)
   {
   printf("The order = %d > %d > %d\n",a,b,c);
   }
   else if (a>c)
   {
   printf("The order = %d > %d > %d\n",a,c,b);
   }
   else
   {
   printf("The order = %d > %d > %d\n",c,a,b);
   }
   }
   else if (b>c)
   {
   if (a>c)
   {
   printf("The order = %d > %d > %d\n",b,a,c);
   }
   else
   {
   printf("The order = %d > %d > %d\n",b,c,a);
   }
   }
   else
   {
   printf("The order = %d > %d > %d\n",c,b,a);
   }
}
2.

#include
#include

int main(void)
{
   int a,b,c;
   void sort(int,int,int);
   printf("input a , b , c =\n",a,b,c);
   scanf("%d %d %d",&a,&b,&c);
   sort(a,b,c);
   system("pause");
   return 0;
}
void sort(int a,int b,int c)
{
   if(a>b)
   {
   if(a>c)
   {
   if(b>c)
   {
   printf("The order = %d > %d > %d\n",a,b,c);
   }
   else
   {
   printf("The order = %d > %d > %d\n",a,c,b);
   }
   }
   else
   {
   printf("The order = %d > %d > %d\n",c,a,b);
   }
   }
   else
   {
   if(b>c)
   {
   if(a>c)
   {
   printf("The order = %d > %d > %d\n",b,a,c);
   }
   else
   {
   printf("The order = %d > %d > %d\n",b,c,a);
   }
   }
   else
   {
   printf("The order = %d > %d > %d\n",c,b,a);
   }
   }
}
第二種複雜的寫法-三數排列

#include
#include

int main(void)

{
   int a,b,c;
   int max(int,int);
   int max1(int,int);
   int min(int,int);
   void sort(int,int,int);

   printf("Input a=");
   scanf("%d",&a);
   printf("Input b=");
   scanf("%d",&b);
   printf("Input c=");
   scanf("%d",&c);

   sort(a,b,c);

   system("pause");
   return 0 ;
}

void sort(int a,int b,int c)

{
   int temp;

   if(a>b && a>c)
   {

   if(c>b)
   {
   temp = b;
   b = c;
   c= temp;
   printf("由大排到小:%d > %d > %d ",a,b,c);
   }
   else
   printf("由大排到小:%d > %d > %d ",a,b,c);

   }

   if(b>c && b>a)
   {
   temp=a;
   a=b;
   b=temp;

   if(c>b)
   {
   temp = b;
   b = c;
   c=temp;
   printf("由大排到小:%d > %d > %d ",a,b,c);
   }
   else
   printf("由大排到小:%d > %d > %d ",a,b,c);
   }

   if(c>b && c>a)
   {
   temp=a;
   a=c;
   c=temp;

   if(c>b)
   {
   temp = b;
   b = c;
   c = temp;
   printf("由大排到小:%d > %d > %d ",a,b,c);
   }
   else
   printf("由大排到小:%d > %d > %d ",a,b,c);

   }

}
簡易的寫法-三數排列

#include
#include

int main(void)
{
   int a,b,c;
   void sort(int,int,int);
   printf("請輸入a = ");
   scanf("%d",&a);
   printf("請輸入b = ");
   scanf("%d",&b);
   printf("請輸入c = ");
   scanf("%d",&c);
   sort(a,b,c);
   system("pause");
   return 0;
}
void sort(int a,int b,int c)//副程式進入點
{
   if(a>b && a>c)
{
if(a>b && b>c)
{
  printf("The order = %d > %d > %d\n",a,b,c);
}
else if(a>b && b
{
  printf("The order = %d > %d > %d\n",a,c,b);
}
}
else if(b>a && b>c)
{
if(b>a && a>c)
{
  printf("The order = %d > %d > %d\n",b,a,c);
}
else if(b>a && a
{
  printf("The order = %d > %d > %d\n",b,c,a);
}
}
else
{
if(c>a && a>b)
{
  printf("The order = %d > %d > %d\n",c,a,b);
}
else if(c>a && a
{
  printf("The order = %d > %d > %d\n",c,b,a);
}
  }
}
比大

#include
#include

int main(void)

{
   int a,b,c;
   int max(int,int);

   printf("Input a=");
   scanf("%d",&a);
   printf("Input b=");
   scanf("%d",&b);
   printf("Input c=");
   scanf("%d",&c);

   printf("The Largest Number=%d\n",max(max(a,b),c));
   system("pause");
   return 0 ;
}
int max(int a,int b)

{
   if(a>b)
   {
   return a ;
   }

   else
   {
   return b ;
   }
}