17-6.txt

c primer 部分习题答案

#include <stdio.h>
#include <string.h>
#define LIM 50
int search(int arr[] ,int num ,int f);
int main(void)
{
	int sor[LIM];
	int i ,j ,k;
	for(i = 0 ;i < LIM ;i ++)
	{
		sor[i] = i + 1;
	}
	puts("Please enter an integer:");
	scanf("%d",&j);
	k = search(sor ,LIM ,j);
	printf("%d\n",k);
	if(k = 1)
		puts("The integer is found.\n");
	else
		puts("The integer isn't found.\n");
	return 0;
}

int search(int arr[] ,int num ,int f)
{
	int i ,j;
	i = num/2;
    
	for(j = 0;j != 0 && i != 1 && i != num;i = i/2)
	{
		j = strcmp(f ,arr[i]);
	}
	if(j = 0)
		return 1;
	else
		return 0;
}