編寫一個程式,輸入一個英文句子,將其中單詞位置倒置,單詞內部結構不變。例如“I am from shanghai”倒置為“shanghai from am I”。
阿新 • • 發佈:2019-02-15
#include<stdio.h>
#include<string.h>
void change(char *str)
{
char temp = 0;
char *p = str;
char *start = str;
char *end = str;
while(*p !='\0')
{
p++;
end++;
}
end = p - 1;
p = str;
while(*p !='\0')
{
while(start < end)
{
temp = *start ;
*start = *end;
*end = temp;
start++;
end--;
}
p++;
}
}
void change1(char *str)
{
char *p = str;
char *start = p;
char *end = p;
char temp;
while(*p != '\0')
{
if(*p == ' '||*p == '\0')
{
end = p-1 ;
while(start < end)
{
temp = *start;
*start = *end;
*end = temp;
start++;
end--;
}
start = end = p+1;
}
p++;
}
end = p-1;
while(start < end)
{
temp = *start ;
*start = *end;
*end = temp;
start++;
end--;
}
}
int main()
{
char str[100] = {0};
printf("input:\n");
gets(str);
change(str);
change1(str);
printf("the result is:%s\n",str);
}