How to select random number

[matanuragi]

i have certain inputs how to select a random input from it to process the selected one.

[jsmith]

Use srand( time( 0 ) ) to seed the C runtime random number generator (once, at the beginning of your program) then use rand() to generate a random number between 0 and 2^32-1.

[ja23jr]

Here are two links to help point you in the right direction.

hope they help

http://www.cplusplus.com/reference/clibrary/cstdlib/rand.html
http://www.cplusplus.com/reference/clibrary/cstdlib/srand.html