Hello hello . please help me

#include <iostream>  

using namespace std;  

int main()  {  

 int num, check=0;  

 for(int num = 1; num<=100;num++){

for(int i = 2; i <= num/2; i++)  {

     if(num % i == 0)   {  

         check=1;  

         break;         }     }  

 if (check==0)  {       cout <<num<<" ";     }

 check = 0;

 }

 return 0;  

}

Explanation:

This line declares num as integer which represents digits 1 to 100.

A check variable is declared as integer and initialized to 0

 int num, m=0, check=0;  

This for loop iterates from 1 to 100

 for(int num = 1; num<=100;num++){

This iterates from 2 to half of current digit

for(int i = 2; i <= num/2; i++)  {

This checks for possible divisors

     if(num % i == 0)   {  

If found, the check variable is updated to 1

         check=1;  

And the loop is terminated

         break;         }     }  

The following if statement prints the prime numbers

 if (check==0)  {       cout <<num<<" ";     }

 check = 0;

 }