Write a C program that creates two threads to run the Fibonacci and the Runner processes. Threads will indicate the start and the end of their work by printing statements in the format "Thread K Starting" "Thread K Finished", where K is the thread number. When the threads finish, the parent thread will output the results generated by the two threads by printing in the format, "The sum of first 5 numbers is: 15" and "The first 5 numbers in the Fibonacci sequence are: 0, 1, 1, 2, 3" if the user had input 5 as the value of N.

see explaination

Explanation:

#include <pthread.h>

#include <stdio.h>

int sumOfN = 0;

int arr[1000];

int n;

void * findSumOfN(void *a){

printf("Thread 1 Starting\n");

sumOfN = (n * (n+1)) / 2; //finds sum of first n natural numbers

printf("Thread 1 Finished\n");

pthread_exit(0);

}

void * fibonacci(void *a){

printf("Thread 2 Starting\n");

arr[0]=0;

arr[1]=1;

for(int i=2;i<n;i++) //find fibonacci numbers iteratively

arr[i]=arr[i-1]+arr[i-2];

printf("Thread 2 Finished\n");

pthread_exit(0);

}

int main(void){

printf("Please enter the value of n \n");

scanf("%d", &n);

if (n <= 0)

{

printf("Wrong input ! \n"); //input validation

return 0;

}

pthread_t thread1, thread2;

pthread_create(&thread1,NULL, findSumOfN, NULL); //Create threads

pthread_create(&thread2,NULL, fibonacci, NULL);

pthread_join(thread1,NULL); //Start threads

pthread_join(thread2, NULL);

printf("The sum of first %d numbers is : %d \n",n, sumOfN);

printf("The first %d fibonacci numbers are : \n",n);

for (int i = 0; i < n; ++i)

{

printf("%d ", arr[i]);

}

printf("\n");

return(0);

}

the answer would be 2

since they are only saying that the couple has 20 daughters and so on but they never said that they went to the movies as well therefore the couple was the only people that went to the movies.

hope this ! : 3

it can either be 2. or 4. : ) tell me if i'm wrong or right