Runtime Error in MXMLCM

help
1

Can anyone explain to me why I am getting Run Time error in this submission?

2

Looks like you are dividing by 0 in few of the lines of your code

1 Like
3

#include
using namespace std;

long long int gcd(long long int a,long long int b)
{
if (b == 0)
{
return a;
}
return gcd(b, a % b);
}

long long int lcm(long long int a[],long long int n)
{
long long int ans = a[0];

for (long long int i = 1; i < n; i++) 
{
    ans = (a[i] * ans)/ (gcd(a[i], ans)); 
}
return ans;

}

int main() {
// your code goes here
int t;
cin>>t;
while(t–)
{
long long int n,m;
cin>>n>>m;

    long long int a[n];
    for(int i=0;i<n;i++)
    {
        cin>>a[i];
    }
    long long int ans=lcm(a,n);
    long long int max=ans;
    long long int num=1;

    for(long long int i=2;i<=m;i++)
    {
        long long int cur=(i*ans)/(gcd(i,ans));
        if(cur>max)
        {
            max=cur;
            num=i;
        }
    }
    cout<<num<<endl;
    
}
return 0;

}
what is the error in this i am geting wa

4

have a look here

5

please see this before solving MXMLCM