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c random number

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Saf1 answered on October 2, 2021 Popularity 10/10 Helpfulness 5/10

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c random number

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#include <stdlib.h>
#include <time.h>

int main(){
  srand(time(NULL)); 
  /*Theory: time(NULL) returns the number of seconds since the
  UNIX epoch (in the data type 'time_t' a fundamental C data 
  type). based on this ever-changing value, srand() generates 
  an initial seed for future rand() calls to produce random numbers*/
  
  //rand() % n produces a random integer between 0(inclusive) <-> n-1(inclusive)
  int num1 = rand()% 10; //range: 0 <-> 9
  
  //rand() % (n-m+1) + m produces a random integer between m(inc.) <-> n(inc.)
  int num2 = rand() % 8 + 13; //range: 13 <-> 20
}

Popularity 10/10 Helpfulness 5/10 Language c

Source: Grepper

Tags: c random

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Contributed on Feb 18 2023

Saf1

0 Answers Avg Quality 2/10

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random number in c

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#include <stdio.h>
#include <stdlib.h>
#include <time.h>

    #define randnum(min, max) \
        ((rand() % (int)(((max) + 1) - (min))) + (min))

int main()
{
    srand(time(NULL));

    printf("%d\n", randnum(1, 70));
}

Popularity 10/10 Helpfulness 8/10 Language c

Source: stackoverflow.com

Tags: c

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Contributed on Sep 03 2022

dallatIkes

0 Answers Avg Quality 2/10

random number c

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#include <stdio.h>
#include <time.h>

int main(){
   /*this is the seed that is created based on how much 
  time has passed since the start of unix time. 
  In this way the seed will always vary every time the program is opened*/
	srand(time(NULL));
  	int max;
  	int min;
  	int n;
  	printf("give me the minimum number?\n");
   	scanf("%d", &min);
	printf("give me the maximum number?\n");
	scanf("%d", &max);
  	//algorithm to derive a random number
  	n = rand() % (max - min + 1) + min;
  	printf("random number:%d", n);
  	return 0;
}

Popularity 10/10 Helpfulness 7/10 Language c

Source: Grepper

Tags: c

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Contributed on Oct 02 2021

The Bad Programmer

0 Answers Avg Quality 2/10

random number c

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#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main ()
{
   int card;

   /* Do this only once at the start of your program,
      otherwise your sequence of numbers (game) will
      always be the same! */
   
   srand(time(NULL));

   /* Choose a number between 1 and 10 - we've called this 'card'
      because the number represents a card from ace to a ten in this
      program (rand() produces a large random int, we find the
      remainder from diving by 10 using '%' mod operator, then add 1
      so the card can't be 0) */
   
   card = rand() % 10 + 1;
   printf ("It's a %d.\n", card);
}

Popularity 10/10 Helpfulness 5/10 Language c

Source: modules.lancaster.ac.uk

Tags: c

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Contributed on Oct 25 2022

Nutty Narwhal

0 Answers Avg Quality 2/10

random number c

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//Note: Don't use rand() for security. 

#include <time.h>
#include <stdlib.h>

srand(time(NULL));   // Initialization, should only be called once.
int r = rand();      // Returns a pseudo-random integer between 0 and RAND_MAX.

Popularity 10/10 Helpfulness 4/10 Language c

Source: stackoverflow.com

Tags: c

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Contributed on Aug 23 2022

Lara Combina

0 Answers Avg Quality 2/10

rand in c

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1234
1221.
qqqqqq





aaa

Popularity 1/10 Helpfulness 1/10 Language c

Source: Grepper

Tags: c

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Contributed on Feb 18 2022

Baddar Bukhari

0 Answers Avg Quality 2/10

c random number

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