int array[]={...};int i;int PDATA[n]={0};int pdata_counter=0;int NDATA[m]={0};int ndata_couter=0;for(i=0;i if(array[i]<0) PDATA[++pdata_counter]=array[i]; else if(array[i]>0) NDATA[++ndata_counter]=array[i];}