trying
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109
11/part2.c
109
11/part2.c
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@ -1,10 +1,16 @@
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#include "_.h"
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#include <pthread.h>
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typedef struct structure {
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int nbr;
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struct structure *next;
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} struc;
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typedef struct data_t {
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long nbr;
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int max;
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} data;
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long long lenght_struc(struc *head) {
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long long count = 0;
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while (head->next != NULL) {
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@ -21,6 +27,47 @@ void print_struc(struc *head) {
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}
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}
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void* thread(void *data_void);
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pthread_t create_thread(long nbr, int max) {
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pthread_t thread_id;
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data dt = {nbr, max};
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pthread_create(&thread_id, NULL, thread, &dt);
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pthread_join(thread_id, NULL);
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return thread_id;
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}
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long count = 0;
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pthread_mutex_t mutex;
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void blink(long nbr, int max) {
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for (; max > 0; max--) {
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if (nbr == 0) {
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nbr = 1;
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}
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else if (((int)floor(log10(ABS(nbr))) + 1) % 2 == 0) {
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double len = floor(log10(ABS(nbr))) + 1;
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int left = nbr / (pow(10, len / 2));
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nbr = nbr % (long)(pow(10, len / 2));
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create_thread(left, max - 1);
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}
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else
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nbr *= 2024;
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}
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pthread_mutex_lock(&mutex);
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count++;
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pthread_mutex_unlock(&mutex);
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}
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void* thread(void *data_void) {
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data *dt = (data*)data_void;
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blink(dt->nbr, dt->max);
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return NULL;
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}
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int main(int argc, char **argv) {
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if (argc != 2)
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cur = cur->next;
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}
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long long count = lenght_struc(head);
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long long pre_count = count;
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long long estimate = count;
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double average = 0;
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int max = 40;
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for (int i = 0; i < max; i++) {
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cur = head;
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for (int j = 0; cur->next != NULL; j++) {
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if (cur->nbr == 0) {
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cur->nbr = 1;
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cur = cur->next;
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}
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else if (((int)floor(log10(ABS(cur->nbr))) + 1) % 2 == 0) {
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double len = floor(log10(ABS(cur->nbr))) + 1;
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int left = cur->nbr / (pow(10, len / 2));
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int right = cur->nbr % (int)(pow(10, len / 2));
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struc *new = calloc(1, sizeof(struc));
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new->nbr = right;
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new->next = cur->next;
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cur->nbr = left;
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cur->next = new;
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cur = new->next;
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count++;
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}
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else {
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cur->nbr *= 2024;
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cur = cur->next;
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}
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}
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//printf("count - pre_count: %f\n", (double)count / pre_count);
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average += (double)count / pre_count;
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pre_count = count;
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}
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average /= (double)max;
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printf("average: %f\n", average);
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for (int i = 0; i < 75; i++)
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estimate *= average;
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//print_struc(head);
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printf("count: %lld\n", count);
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printf("estimate: %lld\n", estimate);
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//long len = lenght_struc(head);
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//pthread_t thread_id[len + 1];
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pthread_mutex_init(&mutex, NULL);
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cur = head;
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for (int i = 0; cur->next != NULL; i++) {
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create_thread(cur->nbr, 75);
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cur = cur->next;
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}
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//for (int i = 0; i < len; i++) {
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//pthread_join(thread_id[i], NULL);
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//}
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printf("count: %ld\n", count);
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return 0;
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}
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