Example #1
0
File: rbtree.c Project: yumm007/C
int insert(struct node_st **tree, int data)
{
      struct node_st *newnode, *p;

      newnode = malloc(sizeof(*newnode));
      if (newnode == NULL) {
	    return -1;
      }
      newnode->data = data;
      newnode->color = RED;
      newnode->l = newnode->r = &nil;

      p = find_p(*tree, data);
      if (p == &nil) {
	    newnode->p = &nil;
	    newnode->color = BLACK;
	    *tree = newnode;
	    return 0;
      }

      if (data <= p->data) {
	    p->l = newnode;
      } else {
	    p->r = newnode;
      }
      newnode->p = p;

      insert_balance(tree, newnode);
      return 0;
}
Example #2
0
File: rbtree.c Project: yumm007/C
static struct node_st *find_p(struct node_st *tree, int data)
{
      if (tree == &nil) {
	    return &nil;
      }

      if (data < tree->data) {
	    if (tree->l == &nil) {
		  return tree;
	    }
	    return find_p(tree->l, data);
      }

      if (tree->r == &nil) {
	    return tree;
      }
      return find_p(tree->r, data);
}
Example #3
0
void remove_fb(float *yp,float *ym,int n,short *scaler,short *shft)
/* Find Scale and timeshift 

	Yp = data trace
	Ym = wavelet
	
	F=min(Yp(x) - Ym(x)*a)^2 is a function to minimize for scaler
	
	find shift first with xcorrelation then
	
	solve for a - scaler 
*/



{

#define RAMPR 5

	void find_p(float *ym,float *yp,float *a,int *b,int n);
	
	int it,ir;
	
	float a=1.0;
	int b=0;
	int ramps;
	float *a_ramp;
	
	ramps=NINT(n-n/RAMPR);
	
	find_p(ym,yp,&a,&b,n);
	
	a_ramp = ealloc1float(n);
	
	for(it=0;it<ramps;it++)
		a_ramp[it]=1.0;
	
	for(it=ramps,ir=0;it<n;it++,ir++) {
		a_ramp[it]=1.0-(float)ir/(float)(n-ramps-1);
	}
	
	
	
	if (b<0) {
		for(it=0;it<n+b;it++) 
			yp[it-b] -=ym[it]*a*a_ramp[it-b];
	} else {
		for(it=0;it<n-b;it++) 
			yp[it] -=ym[it-b]*a*a_ramp[it+b];
	}
	
	*scaler = NINT((1.0-a)*100.0);
	*shft = b;
	
	free1float(a_ramp);
}
Example #4
0
void MatchTrie::find_p(MatchTrie::TrieNode *n, int depth, const char *s, int len, int errorCount, std::vector <MatchTrie::Result> &result){
	if (!n || errorCount < 0) return;
	if (depth == len){
		for (std::set <Result>::iterator it = n -> data.begin(); it != n -> data.end(); it ++)
			result.push_back(*it);
	}  else {
		for (int i = 0; i < 4; i ++)
			find_p(n -> next[i], depth + 1, s, len, errorCount - (dnaToInt(s[depth]) != i), result);
	}
}
Example #5
0
std::vector <MatchTrie::Result> MatchTrie::find(const char *s, int len, int maxErrorCount){
	std::vector <Result> ret;
	find_p(_root, 0, s, len, maxErrorCount, ret);
	return ret;
}