WEEK: 8 PROGRAM 1 AND PROGRAM 2 NPTEL Problem Solving through Programming in C (Jan 27) 2020 solutions

PROBLEM SOLVING THROUGH PROGRAMMING IN C.

By Prof. ANUPAM BASU


WEEK 8:PROGRAM 1:

Write a C Program to find HCF of 4 given numbers using recursive function. 
Sample Test Cases
Input Output
Test Case 1
100
30
50
70
The HCF is 10
Test Case 2
49
56
147
21
The HCF is 7

 int HCF(int a,int b)
         {
              if(a%b==0)
               {
                      return b;
               }
              else
              {
                      return(HCF(b,a%b));
              }
         } 

WEEK 8:PROGRAM 2:

Write a C Program to find power of a given number using recursion. The number and the power to be calculated is taken from test case

                                   

Sample Test Cases
Input Output
Test Case 1
5
2
5^2 is 25
Test Case 2
10
4

10^4 is 10000

long power (int num, int pow)
{
    if (pow)
    {
        return (num * power(num, pow - 1));
    }
    return 1;
}

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