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Categories >> Code-Snippets >> Programming-Code >> C-Code
 
 
 
Question
Given an array of characters which form a sentence of words,
give an efficient algorithm to reverse the order of the words 
(not characters) in it.
 Question Submitted By :: =-PKG-=
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Answer
//Simple String Reverse
#include<stdio.h>
#include<string.h>
char str1[50],str2[50];
main()
{
        printf("\nEnter The String:");
        gets(str1);
        rev(str1);
}
rev(char s[20])
{
        int i=0,a=0,j=0,k=0;
        a=strlen(s);
        b:
        a--;
        while(s[a]!=' '&a>=0)
        {
                str2[i]=s[a];
                a--,i++;
        }
        str2[i]='\0';
        j=strlen(str2)-1;
        while(str2[k]!='\0')
        {
                printf("%c",str2[j]);
                j--,k++;
        }
        printf(" ");
        if(a>=0)
        {
                goto b;
        }
        printf("\n\n");
}
 
4
Prabhakar
 
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