Graph_Random & Num Edges

#include<stdio.h>
int main()
{
    int num_of_nodes;
    printf("Enter the Number of NODE: " );
    scanf("%d",&num_of_nodes);
    int i,j,graph[50][50],temp[50][50];
    int number_of_edges=0;


    for(i=0;i<num_of_nodes;i++)
    {
        for(j=0;j<num_of_nodes;j++)
        {
            if(i!=j)
            {
                graph[i][j]=rand()%2;
                temp[i][j]=rand()%2;
            }
            else
            {
                graph[i][j]=0;
                temp[i][j]=0;
            }
        }
    }
    for (i=0;i<num_of_nodes;i++)
    {
        for (j=0;j<num_of_nodes;j++)
        {
            if(temp[i][j]==1)
            {
                temp[j][i]=0;
            }
            printf("%d ", graph[i][j]);

        }
        printf("\n");
    }
    for(i=0;i<num_of_nodes;i++)
    {
    for(j=0;j<num_of_nodes;j++)
        {
            if(temp[i][j]==1){
                number_of_edges++;
            }
        }
    }
    printf("Number Of Edges = %d\n", number_of_edges);
}