You are to write a program which takes in a pair of positive integers, n and m ,

Question

You are to write a program which takes in a pair of positive integers, n and m,<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

(0 < m _ n < 20), and outputs all the possible permutations of choosing m integers from the set f {1, 2, %u2026 , n}. The input is just one line with two integers separated by a white space. The output should print one permutation per line, and a final line containing the number of permutations printed.

Important:

Your program should prompt the user for input, and it should accept only valid input. Your output should be organized as follows:

Sample Input             Sample Output

3 2                               1 2

                                    1 3

                                    2 1

                                    2 3

                                    3 1

                                    3 2

                                    6

Explanation / Answer

#include #include #include int lev=-1,n,val[50],a[50]; void main() { int i,j; clrscr(); printf("Enter how many numbers? "); scanf("%d",&n); printf(" Enter %d numbers: ",n); for(i=0;i

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