Help me debug my code

help
,
1

CodeChef: Practical coding for everyone : my code.
Please tell me why is this wrong and how can I correct it.

2

You needed to check till 100 , whereas you are checking till only 99.

3

Some ques.

What error are you getting?
What exactly is the purpose of checkarr…it seems to be doing nothing.
you can just count the arr2 values directly.

4

You are using 0-based indexing for arr2, but the valuep and valuen are 1-based. You need to subtract 1 from both these values initially.

1 Like
5 
{
    int m , x , y , valuep = 0 , valuen = 0, count = 0;
    int arr2[101];
    for(int i = 0;i<101;i++){
        arr2[i]=0;
    }
    
    cin>>m>>x>>y;
    int arr[m];
    
    for(int k = 0; k < m ; k++)
    {
        cin>>arr[k];
    }
    
    int z = x * y ;
    
    for(int i = 0 ; i < m ; i++)
    {
        valuep = z + arr[i];//41
        valuen = arr[i] - z;//1
        
        if(valuen<=0)
        {
            valuen = 1;
        }
        if(valuep>100)
        {
            valuep = 100;
        }
        
        for(int j = valuen ; j <= valuep ; j++)
        {
            arr2[j]=1;
        }
        
    }
    
    for(int d = 0 ; d <= 100 ; d++)
    {
            if(arr2[d]==1)
            {
                count++;
            }
    }
    
    cout<<100-count<<'\n';
}

//just gothrough these code you will understand by yourselves