An

**algorithm**is a finite set of steps defining the solution of a particular problem. An algorithm is expressed in pseudo code – something resembling C language or Pascal, but with some statements in English rather than within the programming language- A sequential solution of any program that written in human language, called algorithm.
- Algorithm is first step of the solution process, after the analysis of problem, programmers write the algorithm of that problem.

**Pseudo code**

- Input Num
- Initialize Len to zero and Y to Num
- While Y is not zero
- Save Remainder by Y Mod 16 in array HEXD at index Len
- Initialize Y to Y divided 16
- Increment Len
- for(Initialize I to Len-1 ; Condition I Greater than -1 ; Decrement I )
- If HEXD[I] Less than 10
- HEXC[I]=HEXD[I]+48
- Else
- HEXC[I]=HEXD[I]+55
- Initialize HEXC[I] to NULL
- Print HEXC

**Detailed Algorithm:**

Step 1: Input NUM

Step 2: LEN = 0 & Y=NUM

Step 3: While (Y > 0)

HEXD[LEN]=Y%16

Y=Y/16

LEN++

Step 4: for(I=LEN-1;I>-1;I–)

IF(HEXD[I]<10)

HEXC[I]=HEXD[I]+48;

ELSE

HEXC[I]=HEXD[I]+55;

Step 5: HEXC[I]=NULL

Step 5: Print HEXC

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