<div>
can you post your inputs and the expected count from that?<br />
<br />
note, the <br />
<br />

<pre><code id="code-20-42678625-1">printf(&quot;\n%d&quot;, count);</code></pre>
<br />
should be changed to <br />
<br />

<pre><code id="code-20-42678625-2">printf(&quot;%d\n&quot;, count);</code></pre>
<br />
if doing so, the following code should work:<br />
<br />

<pre><code id="code-20-42678625-3">#include &lt;stdio.h&gt;
void main()
{
    int t, n, count;
    char c;
    scanf(&quot;%d&quot;, &amp;t);
    while(t--)
    {
        count=0;
        scanf(&quot;\n%d&quot;,&amp;n);
        while(n&gt;0){
            if(n%10==4)
            {
                count++;
            }
            n=n/10;
        }
        printf(&quot;%d\n&quot;, count);
    }  
    printf(&quot;type any key to end&quot;);
    scanf(&quot;%d&quot;, &amp;t);
}</code></pre>
<br />
Sara
</div>


can you post your inputs and the expected count from that?

note, the



printf("\n%d", count);


should be changed to



printf("%d\n", count);


if doing so, the following code should work:



#include <stdio.h>
void main()
{
    int t, n, count;
    char c;
    scanf("%d", &t);
    while(t--)
    {
        count=0;
        scanf("\n%d",&n);
        while(n>0){
            if(n%10==4)
            {
                count++;
            }
            n=n/10;
        }
        printf("%d\n", count);
    }  
    printf("type any key to end");
    scanf("%d", &t);
}


Sara

<div>
<div class="content wysiwyg-content">
Link to the <a href="https://www.codechef.com/problems/LUCKFOUR" rel="ugc">problem</a>: <br />
<br />
The code works fine on my own system, but while submitting shows wrong answer?<br />
<br />
&nbsp;
<pre><code id="code-10-29115303-1">   #include &lt;stdio.h&gt;
    void main()
    {
    	int t, n, count;
    	scanf(&quot;%d&quot;, &amp;t);
    	while(t--)
    	{
    		count=0;
    		scanf(&quot;\n%d&quot;,&amp;n);
    		while(n&gt;0){
    		if(n%10==4)
    		{
    			count++;
    		}
    		n=n/10;
    	}
    	printf(&quot;\n%d&quot;, count);
    	}
    }</code></pre>
</div>
</div>


Link to the problem (https://www.codechef.com/problems/LUCKFOUR): 

The code works fine on my own system, but while submitting shows wrong answer?

 (CODE)

CodeChef Problem - LuckyFour

C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, so it has found lasting use in applications that had formerly been coded in assembly language, including operating systems as well as various application software for computers ranging from supercomputers to embedded systems. It is distinct from C++ (which has its roots in C) and C#, and many later languages have borrowed directly or indirectly from C.

C++ is an intermediate-level general-purpose programming language, not to be confused with C or C#. It was developed as a set of extensions to the C programming language to improve type-safety and add support for automatic resource management, object-orientation, generic programming, and exception handling, among other features.