I need to do a non-recursive function for count the leafs in a tree. I have the recursive algorithm, Can someone help me to figure this out!!

count leafs

int count_Lnodes(root, int cnt)
    if (root != NULL) 
        cnt = count_Lnodes(root->left, cnt);
        cnt = count_Lnodes(root->right, cnt);
        if (root->left == NULL && root->right == NULL) ++cnt;
    return cnt;
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