找不出错误，为什么只能执行两簇就执行不下去了

#include <iostream>
#include <cstdio>

using namespace std;

int main()
{
    int n, m;
    while(scanf("%d %d", &n, &m) != EOF)
    {
        int temp = 0, s = 0, k = 0;
        int arr[50] = {0}, brr[50] = {0};
        for(int i = 2, j = 0; i<=2*n; i+=2, j++)
            arr[j] = i;
        for(int i = 0; arr[i]; i++)
        {
            s+=arr[i];
            if((i+1)%m==0)
            {
                brr[k] = s;
                k++;
                s = 0;
            }
            if(arr[i+1]==0)
                brr[k] = s;
        }
        for(int i = 0; i<=k; i++)
        {
            if(i == 0)
                cout<<brr[i]/m;
            else if(i == k)
                cout<<" "<<brr[i]/(n%m);
            else
                cout<<" "<<brr[i]/m;
        }
        cout<<endl;
    }
    return 0;
}