55 lines
880 B
C
55 lines
880 B
C
#include <stdio.h>
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#include <stdlib.h>
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typedef struct node {
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int d;
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struct node *l, *r;
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} *N;
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void concat(N *X1, N *X2) {
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if (*X1 == NULL) *X1 = *X2;
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else if (*X2) {
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N t = *X1;
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while (t->r) t = t->r;
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t->r = *X2;
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(*X2)->l = t;
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}
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}
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N new_node(int d) {
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N n = (N)malloc(sizeof(struct node));
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n->d = d;
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n->l = n->r = NULL;
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return n;
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}
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void insert(N *h, int d) {
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N n = new_node(d);
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if (!*h) *h = n;
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else {
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N t = *h;
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while (t->r) t = t->r;
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t->r = n;
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n->l = t;
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}
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}
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void print(N h) {
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while (h) {
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printf("%d ", h->d);
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h = h->r;
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}
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printf("\n");
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}
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int main() {
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N X1 = NULL, X2 = NULL;
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insert(&X1, 1);
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insert(&X1, 2);
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insert(&X1, 3);
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insert(&X2, 4);
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insert(&X2, 5);
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concat(&X1, &X2);
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print(X1);
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return 0;
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}
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