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    <p>I would split the string array using strtok (see the man page).</p> <p>So I would have something like this</p> <pre><code>char x[100]="Amit Hanish Mahesh Amit"; /* Preparing the result string */ size_t sz_result = sizeof(char) * (strlen(x) + 1); char* result = (char*) malloc( sz_result ); result[0] = '\0'; /* Parsing the string from one element to the other */ char* elm = strtok(x, " "); while( (elm = strtok(NULL, " ")) != NULL ) { ... </code></pre> <p>You will have each element of the string to verify if they are unique.</p> <p>Then I would use something like a hashmap (you can use the one from the glib) or I would put the read string element in a new string only if it is not already in.</p> <p>Here is an example for the second solution:</p> <pre><code> ... /* Is the element already in the result string? */ if ( strstr(result, elm) == NULL ) { /* Then we should add it */ snprintf( result, sz_result - 1, "%s %s", result, elm ); } } </code></pre> <p>In the end if you want x to be modified, you simply copy result in x:</p> <pre><code>strncpy( x, result, 99 ); </code></pre> <p>Here is a sample code (not optimised, not using the strn* primitives, etc.)</p> <pre><code>#include &lt;unistd.h&gt; #include &lt;stdio.h&gt; #include &lt;string.h&gt; #include &lt;stdlib.h&gt; int main() { char x[100]="Amit Hanish Mahesh Amit"; /* Preparing the result string */ size_t sz_result = sizeof(char) * (strlen(x) + 1); char* result = (char*) malloc( sz_result ); result[0] = '\0'; /* Parsing the string from one element to the other */ char* elm = strtok(x, " "); if (elm != NULL) strcpy(result, elm); while( (elm = strtok(NULL, " ")) != NULL ) { /* Is the element already in the result string? */ if ( strstr(result, elm) == NULL ) { /* Then we should add it */ strcat( result, " " ); strcat( result, elm ); } } strcpy( x, result ); fprintf( stdout, "Result: %s\n", x ); } </code></pre>
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    1. POhow to find duplicate string in an array of strings
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    1. USHuygens
    1. USHuygens
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    1. COIts fine but where i am doing wrong in my code?
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      1. USAmit Singh Tomar
    2. COIt's way too complicated for doing what you want :-) and I don't have enough time, my apologies.
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      1. USHuygens
    3. COWith your solution output comes out to be Hanish Mahesh Amit but it should be Amit Hanish Mahesh .Any way @Huygens thanks for your time!!
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