Help me to convert this code from C++ to C

#include <iostream>
using namespace std;

int main()
{
int n,i;
cin>>n;
int arr1[n+1][n+1],arr2[n+1][n+2],arr3[n+1][n+3];
for(int i=1;i<=n;i++)
{
    arr1[i][i]=n;
}
int pos;
for(int i=1;i<=n;i++)
{
    pos=1;
    int temp=n;
    while(pos!=1)
    {
        arr1[i][pos-1]=temp-2;
        temp=temp-2;
        pos--;
    }
    temp=n;
    pos=i;
    while(pos!=n)
    {
        arr1[i][pos+1]=temp-2;
        temp=temp-2;
        pos++;
    }
}
int temp2=n+(n-1)*2;
for(int i=1;i<=n;i++)
{
    int loop=temp2;
    int step=0;
    int step2=0;
    for(int j=1;j<=n;j++)
    {
        if (loop>n)
        {
            arr2[i][j]=temp2-step;
            step+=2;
            loop-=2;
        }else if (loop<n)
        {
            arr2[i][j]=temp2-step+step2;
            step2+=2;
        }else
        {
            arr2[i][j]=n;
            loop-=2;
            step2+=2;
        }
    }
    temp2-=2;
}
int temp3=n+(n/2)-1;
for(int j=1;j<=n/2;j++)
{
    arr3[i][j]=temp3;
    temp3--;
}
cout<<"\ntype 1"<<endl;
for(int i=1;i<=n;i++)
{
    for(int j=1;j<=n;j++)
    {
        cout<<arr1[i][j]<<"";
    }
    cout<<endl;
}
cout<<"\ntype 2"<<endl;
for(int i=1;i<=n;i++)
{
    for(int j=1;j<=n;j++)
    {
        cout<<arr2[i][j]<<"";
    }
    cout<<endl;
}
cout<<"\ntype 3"<<endl;
for(int k=1;k<=3;k++)
{
    for(int i=1;i<=2;i++)
    {
        for(int j=1;j<=n/2;j++)
        {
            cout<<arr3[1][j]<<"";
        }
    }
    cout<<endl;
}
for(int k=1;k<=3;k++)
{
    for(int i=1;i<=2;i++)
    {
        for(int j=n/2;j>=1;j--)
        {
            cout<<arr3[1][j]<<"";
        }
    }
    cout<<endl;
}
    return 0;
}

#include <stdio.h>

int main()
{
int n,i;
printf("enter number");
int arr1[n+1][n+1],arr2[n+1][n+1],arr3[n+1][n+1];
for(int i=1;i<=n;i++)
{
    arr1[i][i]=n;
}
int pos;
for(int i=1;i<=n;i++)
{
    pos=1;
    int temp=n;
    while(pos!=1)
    {
        arr1[i][pos-1]=temp-2;
        temp=temp-2;
        pos--;
    }
    temp=n;
    pos=i;
    while(pos!=n)
    {
        arr1[i][pos+1]=temp-2;
        temp=temp-2;
        pos++;
    }
}
int temp2=n+(n-1)*2;
for(int i=1;i<=n;i++)
{
    int loop=temp2;
    int step=0;
    int step2=0;
    for(int j=1;j<=n;j++)
    {
        if (loop>n)
        {
            arr2[i][j]=temp2-step;
            step+=2;
            loop-=2;
        }else if (loop<n)
        {
            arr2[i][j]=temp2-step+step2;
            step2+=2;
        }else
        {
            arr2[i][j]=n;
            loop-=2;
            step2+=2;
        }
    }
    temp2-=2;
}
int temp3=n+(n/2)-1;
for(int j=1;j<=n/2;j++)
{
    arr3[i][j]=temp3;
    temp3--;
}
printf("\ntype 1");
for(int i=1;i<=n;i++)
{
    for(int j=1;j<=n;j++)
    {
        printf("%d",arr1[i][j]);
    }
    printf("\n");
}
printf("\ntype 2");
for(int i=1;i<=n;i++)
{
    for(int j=1;j<=n;j++)
    {
        printf("%d",arr2[i][j]);
    }
    printf("\n");
}
printf("\ntype 3");
for(int k=1;k<=3;k++)
{
    for(int i=1;i<=2;i++)
    {
        for(int j=1;j<=n/2;j++)
        {
            printf("%d",arr3[i][j]);
        }
    }
    printf("/n");
}
for(int k=1;k<=3;k++)
{
    for(int i=1;i<=2;i++)
    {
        for(int j=n/2;j>=1;j--)
        {
            printf("%d",arr3[i][j]);
        }
    }
    printf("/n");
}
    return 0;
}