online compiler and debugger for c/c++

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/****************************************************************************** Online C Compiler. Code, Compile, Run and Debug C program online. Write your code in this editor and press "Run" button to compile and execute it. *******************************************************************************/ #include <stdio.h> #include <stdlib.h> typedef struct node { int data; struct node* next; }node_t; int node_insert(struct node *node_head, struct node *node) { struct node *node_tmp; node_tmp = node_head; while(node_tmp->next != NULL) { node_tmp = node_tmp->next; } node_tmp->next = node; } void print_node (struct node* node_head) { struct node* node_tmp; node_tmp = node_head; while(node_tmp!= NULL) { printf("data is %d\n", node_tmp->data); node_tmp = node_tmp->next; } } node_t *list_reverse (node_t *node_head) { node_t * PREV; node_t * CURR; node_t * NEXT; PREV = node_head; CURR = node_head; NEXT = node_head->next; node_head->next = NULL; // printf("%p\n", NEXT); // printf("%p\n", node_head->next); while(NEXT != NULL) { CURR = NEXT; NEXT = CURR->next; CURR->next = PREV; PREV = CURR; } //node_head = CURR; return CURR; } int main() { node_t* HEAD = malloc(sizeof(node_t)); HEAD->data = 50; HEAD->next = NULL; node_t* node_2 = malloc(sizeof(node_t)); node_2->data = 70; node_2->next = NULL; node_t* node_3 = malloc(sizeof(node_t)); node_3->data = 90; node_3->next = NULL; node_insert(HEAD, node_2); node_insert(HEAD, node_3); print_node (HEAD); HEAD = list_reverse(HEAD); printf("\n"); print_node(HEAD); return 0; }

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