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  1. //03
  2. #include<stdio.h>
  3.  int isitprime(int n)
  4.  {
  5.       int prime=1;
  6.     if(n==0||n==1)
  7.     {
  8.         prime=0;
  9.     }
  10.  
  11.     for(int i=2;i<n;i++)
  12.     {
  13.         if(n%i==0)
  14.         {
  15.             prime=0;
  16.             break;
  17.         }
  18.     }
  19.  
  20.     return prime;
  21.  }
  22. int main()
  23. {
  24.     int n1,n2;
  25.     printf("Enter n1:");
  26.     scanf("%d",&n1);
  27.      printf("Enter n2:");
  28.     scanf("%d",&n2);
  29.     printf("Prime:");
  30.     for(int i=n1;i<=n2;i++)
  31.     {
  32.         int flag=isitprime(i);
  33.         if(flag==1)
  34.     {
  35.         printf("%d ",i);
  36.     }
  37.  
  38.     }
  39.     int n;
  40.    n=4;
  41.  
  42.  
  43.  
  44.  
  45. }
  46.  
Success #stdin #stdout 0s 5320KB
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stdin
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Standard input is empty
stdout
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Enter n1:Enter n2:Prime:
https://ideone.com/CV61pT
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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