C + + produces a fixed number of random numbers within a fixed range

1#include <iostream>2#include <ctime>3#include <random>4 using namespacestd;5 voidKnuthintNintm)6 {7Srand ((unsignedint) Time (NULL));8      for(inti =0; I < n; i++) {9         /*Notice that in the entire for loop, the seed of the random number is fixed, rand ()Ten the value is constant. One here n must subtract I, otherwise it is likely to produce a random number less than n A         */  -         if(rand ()% (N-i) <m) { -cout << i <<Endl; the--m; -         } -      } - } +  - intMain () + { AKnuth +,Ten); at     return 0; -}

The above procedure is assuming M is far greater than n!

C + + produces a fixed number of random numbers within a fixed range