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reverse_word.c
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reverse_word.c
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#include<stdio.h>
#include<stdlib.h>
#include<string.h>
void ReverseWord(char str[], int len)
{
char* buffer = (char *)malloc(len*sizeof(char)+1);
printf("%d\n", len);
int dst = 0;
int end,start;
int i = len-1;
while(i>=0)
{
if(str[i] == ' ')
{
buffer[dst++] = str[i--];
}
else
{
end = i;
while(str[i] != ' ' && i>=0)
i--;
start = i+1;
while(start<=end)
{
buffer[dst] = str[start];
dst++;
start++;
}
}
}
buffer[len] = '\0';
printf("%s\n", buffer);
}
void reverse(char* word, int start, int end)
{
char temp;
while(end>start)
{
temp = word[start];
word[start] = word[end];
word[end] = temp;
start++;
end--;
}
}
void ReverseWord2(char str[], int len)
{
char* strptr = (char *)malloc(len*(sizeof(char))+1);
int i = 0;
int start = 0;
int end = len-1;
reverse(strptr, start, end);
while(i<len)
{
start = i;
while(strptr[i] != ' ' || strptr[i] != '\0')
i++;
end = i-1;
reverse(strptr, start, end);
if(strptr[i] == ' ')
i++;
}
//printf("%s\n", strptr);
}
int main()
{
char str[100];
printf("Enter the string\n");
gets(str);
int len=0,i=0;
while(str[i++] != '\0')
len++;
ReverseWord2(str,len);
return 0;
}