C语言编程小练习

#include <stdio.h>
#include <string.h>

#define MAX_SIZE 30

int main()
{
int len;
int i;
int j;
int flag = 0;
int count = 0;

char str1[MAX_SIZE];
char str2[MAX_SIZE];
char str_temp[MAX_SIZE];

printf("Please input a string:\n");
scanf("%s",str1);
printf("Please input another string:\n");
scanf("%s",str2);

len = strlen(str2);

for(i = 0; str1[i] != '\0'; i++)
{
for(j = 0; j < len; j++)
{
str_temp[j] = str1[i + j];
}
if(strcmp(str_temp, str2) == 0)
{
count++;
}
}

printf("\nThe number is:%d\n",count);

return 0;
}

#include <stdio.h>
#define MAX_SIZE 1024

int main()
{
int i;
int num;
int count = 0;
int temp;
int a[MAX_SIZE] = {0};

printf("Please input n:");
scanf("%d",&num);

temp = num;

for(i = 0; i < num; i++)
{
a[i] = i+1;
}

i = 0;

while(num > 1)
{
if(a[i] != 0)
{
count++;
}

if(count == 3)
{
a[i] = 0;
num--;
count = 0;
}

i++;

if(i == temp)  //如何做到循环遍历这个数组，当i到末尾的时候再将它置为0，就又到了数组开头。
{
i = 0;
}
}

for(i = 0; i < temp; i++)
{
if(a[i] != 0)
{
printf("the result is:%d\n",a[i]);
break;
}
}

return 0;
}