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extern char* strcat( char* dest, const char* src );
extern int   printf ( const char * restrict format, ... );
extern int   putchar( int ch );

#define LISPER(n, l, re) ({                                                                                                     \
                auto int ii = l;                                                                                                          \
                static unsigned char n[l];                                                                                      \                           
                while (ii--) {                                                                                                             \
                    *str##n(n, (unsigned char[]){0x09 >> 1 << 1, 0x1911 >> 0xD});                \
                };                                                                                                                               \
                *((void**)&re) = printf((unsigned char[]){0x25, 0x73, 0x1917 >> 0xE}, n); \
                })

struct bombitterLemon{
    union {
        unsigned char   : 0;
        unsigned char   : 0;
        unsigned char v: 7;
    } pacific;
};

int main(void) {

    struct bombitterLemon b0; 

    LISPER(cat, 0x40 ^ (2 << 2), b0);
    (*putchar) (*(struct wtf**)&b0);
    LISPER(cat, ((int) (((char*)   (0x8 ^ (1 << 6))) - 3) | 1), b0);
    (**putchar) (*(struct is***)&b0);
    LISPER(cat, ((int) (((short*)  (0x9 << 3))) | 4), b0);
    (***putchar) (*(struct that****)&b0);
    LISPER(cat, ((int) (((int*)    (0x12 << 2))) | 4), b0);
    (**putchar) (*(unsigned char*****)&b0);
    LISPER(cat, ((int) (((long*)   (0x90 >> 1))) | 4 | 2 | 1), b0);
    (*putchar) (b0.pacific.v);

}

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void main() {
    ph_fork f1, f2, f3, f4, f5;

    f_arr[0] = &f1;
    f_arr[1] = &f2;
    f_arr[2] = &f3;
    f_arr[3] = &f4;
    f_arr[4] = &f5;

    philosopher ph1, ph2, ph3, ph4, ph5;

    ph_arr[0] = &ph1;
    ph_arr[1] = &ph2;
    ph_arr[2] = &ph3;
    ph_arr[3] = &ph4;
    ph_arr[4] = &ph5;

    f1.number = 1;
    sem_init(&f1.is_free, 0, 1);

    f2.number = 2;
    sem_init(&f2.is_free, 0, 1);

    f3.number = 3;
    sem_init(&f3.is_free, 0, 1);

    f4.number = 4;
    sem_init(&f4.is_free, 0, 1);

    f5.number = 5;
    sem_init(&f5.is_free, 0, 1);

    ph1.number = 1;
    ph1.ph_fork_amount = 0;
    ph1.ph_forks[0] = 1;
    ph1.ph_forks[1] = 2;
    ph1.times_eaten = 0;
    ph1.times_thought = 0;
    ph1.st = THINKING;
    pthread_create(&ph1.thread, NULL, routine, (void*)&ph1);

    ph2.number = 2;
    ph2.ph_fork_amount = 0;
    ph2.ph_forks[0] = 2;
    ph2.ph_forks[1] = 3;
    ph2.times_eaten = 0;
    ph2.times_thought = 0;
    ph2.st = THINKING;
    pthread_create(&ph2.thread, NULL, routine, (void*)&ph2);

    ph3.number = 3;
    ph3.ph_fork_amount = 0;
    ph3.ph_forks[0] = 3;
    ph3.ph_forks[1] = 4;
    ph3.times_eaten = 0;
    ph3.times_thought = 0;
    ph3.st = THINKING;
    pthread_create(&ph3.thread, NULL, routine, (void*)&ph3);

    ph4.number = 4;
    ph4.ph_fork_amount = 0;
    ph4.ph_forks[0] = 4;
    ph4.ph_forks[1] = 5;
    ph4.times_eaten = 0;
    ph4.times_thought = 0;
    ph4.st = THINKING;
    pthread_create(&ph4.thread, NULL, routine, (void*)&ph4);

    ph5.number = 5;
    ph5.ph_fork_amount = 0;
    ph5.ph_forks[0] = 5;
    ph5.ph_forks[1] = 1;
    ph5.times_eaten = 0;
    ph5.times_thought = 0;
    ph5.st = THINKING;
    pthread_create(&ph5.thread, NULL, routine, (void*)&ph5);

    pthread_join(ph1.thread, NULL);
    pthread_join(ph2.thread, NULL);
    pthread_join(ph3.thread, NULL);
    pthread_join(ph4.thread, NULL);
    pthread_join(ph5.thread, NULL);

    sem_destroy(&f1.is_free);
    sem_destroy(&f2.is_free);
    sem_destroy(&f3.is_free);
    sem_destroy(&f4.is_free);
    sem_destroy(&f5.is_free);

    printf("\nThe lunch has ended!\n--------\nRESULTS:\nPhilosopher 1 has eaten %d times and thought %d times\nPhilosopher 2 has eaten %d times and thought %d times\nPhilosopher 3 has eaten %d times and thought %d times\nPhilosopher 4 has eaten %d times and thought %d times\nPhilosopher 5 has eaten %d times and thought %d times\n", ph1.times_eaten, ph1.times_thought, ph2.times_eaten, ph2.times_thought, ph3.times_eaten, ph3.times_thought, ph4.times_eaten, ph4.times_thought, ph5.times_eaten, ph5.times_thought);
}

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#include <pthread.h>
#include <stdio.h>
#include <semaphore.h>
#include <unistd.h>
typedef struct _ph_fork {
    int number;
    sem_t is_free;
} ph_fork;
typedef enum state {
    EATING,
    THINKING
} state;
typedef struct _philosopher {
    int number;
    int ph_fork_amount;
    int ph_forks[2];
    int times_eaten;
    int times_thought;
    state st;
    pthread_t thread;
} philosopher;

ph_fork* f_arr[5] = {0};
philosopher* ph_arr[5] = {0};

void* routine(void* arg) {
    philosopher* ph = (philosopher*)arg;
    int frks[2] = {0};
    frks[0] = ph->ph_forks[0];
    frks[1] = ph->ph_forks[1];
    int ph_fork_left_odd = frks[0] % 2;
    int ph_fork_right_odd = frks[1] % 2;
    printf("Philosopher %d has taken a seat at the table.\n", ph->number);
    for (int i = 0; i < 72; i++) {
        if (!(ph_fork_left_odd && ph_fork_right_odd)) {
            if (ph_fork_left_odd) {
                sem_wait(&f_arr[frks[0] - 1]->is_free);
                printf("Philosopher %d takes left fork…\n", ph->number);
                ph->ph_fork_amount++;
                sem_wait(&f_arr[frks[1] - 1]->is_free);
                printf("Philosopher %d takes right fork…\n", ph->number);
                ph->ph_fork_amount++;
            }
            if (ph_fork_right_odd) {
                sem_wait(&f_arr[frks[1] - 1]->is_free);
                printf("Philosopher %d takes right fork…\n", ph->number);
                ph->ph_fork_amount++;
                sem_wait(&f_arr[frks[0] - 1]->is_free);
                printf("Philosopher %d takes left fork…\n", ph->number);
                ph->ph_fork_amount++;
            }
        } else { // Special case when both ph_forks are odd
            sem_wait(&f_arr[frks[0] - 1]->is_free);
            printf("Philosopher %d takes left fork…\n", ph->number);
            ph->ph_fork_amount++;
            sem_wait(&f_arr[frks[1] - 1]->is_free);
            printf("Philosopher %d takes right fork…\n", ph->number);
            ph->ph_fork_amount++;
        }
        if (ph->ph_fork_amount == 2) {
            ph->st = EATING;
            ph->times_eaten++;
            printf("Philosopher %d is eating…\n", ph->number);
            sleep(1);
        };
        if (!(ph_fork_left_odd && ph_fork_right_odd)) {
            if (ph_fork_left_odd) {
                printf("Philosopher %d puts back left fork…\n", ph->number);
                sem_post(&f_arr[frks[0] - 1]->is_free);
                ph->ph_fork_amount--;
                printf("Philosopher %d puts back right fork…\n", ph->number);
                sem_post(&f_arr[frks[1] - 1]->is_free);
                ph->ph_fork_amount--;
            }
            if (ph_fork_right_odd) {
                printf("Philosopher %d puts back right fork…\n", ph->number);
                sem_post(&f_arr[frks[1] - 1]->is_free);
                ph->ph_fork_amount--;
                printf("Philosopher %d puts back left fork…\n", ph->number);
                sem_post(&f_arr[frks[0] - 1]->is_free);
                ph->ph_fork_amount--;
            }
        } else { // Special case when both ph_forks are odd
            printf("Philosopher %d puts back left fork…\n", ph->number);
            sem_post(&f_arr[frks[0] - 1]->is_free);
            ph->ph_fork_amount--;
            printf("Philosopher %d puts back right fork…\n", ph->number);
            sem_post(&f_arr[frks[1] - 1]->is_free);
            ph->ph_fork_amount--;
        }
        if (ph->ph_fork_amount == 0) {
            ph->st = THINKING;
            printf("Philosopher %d is thinking…\n", ph->number);
            ph->times_thought++;
            sleep(1);
        }
    }
    printf("Philosopher %d has finished his lunch and left.\n", ph->number);
    return NULL;
};