integer division by zero exception?

[matthewleemle]

the program can compile successfully but when i input it prompts"exception integer division by zero"

why? thank u. this is my code

 #include <iostream>
using namespace std;
int main()
{
int number;
cin>>number;
int m;
int friends[number];

for(int i=0;i<number;i++)
{
        friends[i]=i+1;
        
         
        }
    
             for(int i=0;i<=m;i++)
             {
                     for(int p=0;p<=number;p++)
                     {
               if( friends[p]%i!=0)
               {
                       friends[i]=0;
                       
                       }
                       }
                       } 
              
       for(int i=0;i<number;i++)
       {
                 if (friends[i]!=0)
                    {
                         cout<<friends[i]<<endl;
                         }
                        
                                                    

        }
        
                        }

[Cubbi]

for(int i=0;i<=m;i++) // i = 0
{
    for(int p=0;p<=number;p++) // i is still 0
    {
        if( friends[p]%i!=0) // what's the remainder of division by i? 

[matthewleemle]

thank you very much but

// ConsoleApplication28.cpp : 
//



#include <iostream>
using namespace std;
int main()
{
int number;
cin>>number;
int m;
int friends[number]={};

for(int i=0;i<number;i++)
{
        friends[i]=i+1;
        
         
        }
    
             for(int i=1;i<=m+1;i++)
             {
                     for(int p=0;p<=number;p++)
                     {
               if( friends[p]%i!=0)
               {
                       friends[i]=0;
                       
                       }
                       }
                       } 
              
       for(int i=0;i<number;i++)
       {
                 if (friends[i]!=0)
                    {
                         cout<<friends[i]<<endl;
                         }
                        
                                                    

        }
        
                        }

why cant i compile this?thank you

[keskiverto]

When a compiler refuses to compile something, it usually does tell a reason. An error message. The best long term solution is to learn to interpret the error messages, but for now you should show us the error message.