Question

C语言题目：编写程序，判断某一字符串中相邻字母对（如ab,或xy）出现的次数。

1.用字符指针实现
2.定义两个指针，分别指向前后两个字符。

Answer 1

int calcount(const char* strSrc)
{
char *pF, *pR;
int count=0;
pF = strSrc;
while(*pF != '\0')
{
pR = （++pF);
if(*pR == ((*pF)+1) )
count++;
}
return count;
}

Answer 2

char *p, *q;
int count = 0;
p = str;
q = str+1;
do{
if(*p = 'a' && *q = 'b') count ++;
p ++; q++;
}while(*q != '\0');