Write a program in c++: A-In permutations and combinations, the term “n C r” refers to n combinations taken r at a time. ??? = ?!/r! (? − ?)! B-Write a recursive function to find the factorial of a number.

C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter8: Arrays And Strings
Section: Chapter Questions
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Write a program in c++: A-In permutations and combinations, the term “n C r” refers to n combinations taken r at a time. ??? = ?!/r! (? − ?)! B-Write a recursive function to find the factorial of a number. C- Use the defined function to compute the term “nCr” for the following scenario: The values of ‘n’ and ‘r’ are stored in two parallel arrays of any user defined size . You have to Read the arrays n and r at run time. Compute n C r for each corresponding terms in the array ‘n’ and ‘r’, and display it properly formatted. Also your program should print the current date and time using library functions.
Sample input:
Array 'n'
Array 'c'
3
Computed nCr
1540
Index
22
1
13
5
1287
4
6
3
16
3
560
5
23
100947
6
18
6
18564
7
15
4
1364
8
18
3
816
9
22
5
26334
..
..
....
....
....
....
....
Transcribed Image Text:Sample input: Array 'n' Array 'c' 3 Computed nCr 1540 Index 22 1 13 5 1287 4 6 3 16 3 560 5 23 100947 6 18 6 18564 7 15 4 1364 8 18 3 816 9 22 5 26334 .. .. .... .... .... .... ....
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