Написать программу потоков для массива

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
 
int main(void)
{
  srand(time(NULL));
  int a[2][10];
  int i, j;
  int row_sum = 0;
  int total_sum = 0;
  
  for (i = 0; i<2; i++) 
  {
    for (j = 0; j<10; j++)
    {
     a[i][j] = rand() % 100 + 1;
    }
  }
 
  for (i = 0; i<2; i++)  
  {
    for (j = 0; j<10; j++)
    {
      row_sum += a[i][j];
      total_sum += a[i][j];
      
    }
    printf("sum of the row %d =  %d", i, row_sum);
    row_sum = 0;
    printf("\n"); 
  }
  
  printf("sum of the matrix = %d\n", total_sum);
  
  return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>
 
#define REENTRANT
 
int create_thread;
int connect_thread;
int disconnect_thread;
 
//Taking an arguments to thread by structure
 
typedef struct _Wat {
    int nr;
    int suma;
    } Thread;
 
 
void* rob(void* _wat) {
    Thread* wat = (Thread*)_wat;
    printf("Thread get the %d, %d\n",wat->nr,wat->suma);
    pthread_exit(0);    
}
 
 
void koniec(char tekst[])
  {
    printf("%s",tekst);
    exit(-1);
  }
 
 
int main()
  {
    pthread_t id_threadd;
 
Thread wat;
    wat.nr  = 10;
    wat.suma  = 0;
 
 
    printf("[system] Doing function PTHREAD_CREATE ...\n");
    create_thread=pthread_create(&id_threadd,NULL,rob,&wat);
    if (create_thread==-1) koniec("PORAZKA\n");
 
    printf("[program] I am the main program.\n");
    printf("[program] Waiting for data from my thread...\n");
 
    printf("[system] Connecting thread ...\n");    
    connect_thread=pthread_join(id_threadd,NULL);
    if (connect_thread==-1) koniec("PORAZKA\n");
 
    
    printf("[system] Disconnecting thread...\n");
    disconnect_thread=pthread_detach(id_threadd);
    if (disconnect_thread==-1) koniec("PORAZKA\n");
    
    printf("[Program] End.\n");
    exit(0);
  }

#include <stdio.h>
#include <pthread.h>
#include <stdlib.h>
#define REENTRANT
 
int create_thread;
int connect_thread;
int disconnect_thread;
char bufor[BUFSIZ];
 
 
void koniec(char tekst[])
  {
    printf("%s",tekst);
    exit(1);
  }
 
 
void *rob()
  {
    printf("[watek] I am the thread of program.\n");
    printf("Input data : ");
    fgets(bufor,BUFSIZ,stdin);    
 //   return bufor;
    pthread_exit(0); //exit(0);
  }
 
int main()
  {
    pthread_t id_watku;
    printf("[system] Doing function PTHREAD_CREATE ...\n");
    create_thread=pthread_create(&id_threadd,NULL,rob,&wat);
    if (create_thread==-1) koniec("PORAZKA\n");
 
    printf("[program] I am the main program.\n");
    printf("[program] Waiting for data from my thread...\n");
 
    printf("[system] Connecting thread ...\n");    
    connect_thread=pthread_join(id_threadd,NULL);
    if (connect_thread==-1) koniec("PORAZKA\n");
 
    printf("[program] Took data ... %s\n",bufor);
 
    printf("[system] Disconnecting thread...\n");
    disconnect_thread=pthread_detach(id_threadd);
    if (disconnect_thread==-1) koniec("PORAZKA\n");
    
    printf("[Program] End.\n");
    exit(0);
  }