C program to find the occurrence of an element in a number?

Answer 1

Let "n" is that number and "occ" is the no of occurrence of a element "el" in "n".

so,

<pre>

i = n;

occ = 0; // Initializing "occ" to zero.

while(i > 0){

rem = i % 10; // This gives a digit in the number.

if(rem == el) occ++; // If "rem" is same as "el" then increament "occ".

i = i / 10; //By this we are extracting rem from number i.

}

printf("No of Occurrence of %d element is : %d", el, occ); // Printing the number of occurences

</pre>

that's it.

Answer 2

let the number to be searched for be stored in key

for(i=0;i<arraylength;i++)

{

if(arr[i]==key)

{

printf("found");

break;

}

}

if(i==arraylength)

printf("not found");

where arr is the array and arraylength is its length

i is a loop control variable