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  1. #include <stdio.h>
  2. #include <pthread.h>
  3.  
  4. void *calculate_square(void *arg) {
  5.     int number = *((int *)arg);
  6.     for (int i = 1; i <= number; i++) {
  7.         printf("Square of %d: %d\n", i, i * i);
  8.     }
  9.     printf("\n");
  10.     return NULL;
  11. }
  12.  
  13. void *check_even_odd(void *arg) {
  14.     int number = *((int *)arg);
  15.     if (number % 2 == 0)
  16.         printf("%d is an even number\n", number);
  17.     else
  18.         printf("%d is an odd number\n", number);
  19.  
  20.     return NULL;
  21. }
  22.  
  23. void *calculate_average(void *arg) {
  24.     int number = *((int *)arg);
  25.     int sum = 0;
  26.     int temp;
  27.     for (int i = 1; i <= number; i++) {
  28.         printf("Enter number %d: ", i);
  29.         scanf("%d", &temp);
  30.         sum += temp;
  31.     }
  32.     float average = (float)sum / number;
  33.     printf("Average: %.2f\n", average);
  34.     return NULL;
  35. }
  36.  
  37. int main() {
  38.     printf("21BAI1633, Karthik Vinayan\n");
  39.  
  40.     int n;
  41.     printf("Enter a number: ");
  42.     scanf("%d", &n);
  43.  
  44.     pthread_t thread1, thread2, thread3;
  45.     pthread_create(&thread1, NULL, calculate_square, &n);
  46.     pthread_create(&thread2, NULL, check_even_odd, &n);
  47.     pthread_create(&thread3, NULL, calculate_average, &n);
  48.  
  49.     pthread_join(thread1, NULL);
  50.     pthread_join(thread2, NULL);
  51.     pthread_join(thread3, NULL);
  52.  
  53.     return 0;
  54. }
  55.  
Success #stdin #stdout 0.01s 5404KB
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Standard input is empty
stdout
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21BAI1633, Karthik Vinayan
Enter a number: Average: -nan
0 is an even number
https://ideone.com/XxLnem
language:
C (gcc 8.3)
created:
322 days ago
visibility:
public

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