Code - C

      #include <stdio.h>
      int main() {
          int arr[] = {5, 3, 8, 4, 2};
          int target = 4;
          for (int i = 0; i < sizeof(arr)/sizeof(arr[0]); i++) {
              if (arr[i] == target) {
                  printf("Found at index: %d\n", i);
                  return 0;
              }
          }
          printf("Not found\n");
          return -1;
      }