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SOLVE THIS IN C LANGUAGE. USING THREADS. Task Requirements Modify the following code to demonstrate context switching between parallel running threads. The program must fulfil

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SOLVE THIS IN C LANGUAGE. USING THREADS.

Task Requirements Modify the following code to demonstrate context switching between parallel running threads. The program must fulfil the following requirements: . . . There should be 4 threads created using Pthreads API. While all/any the threads are running, the main() function should be waiting for the threads to finish their execution. The 1st thread should continuously print the character "1" in a loop. the 2nd thread should continuously print the character "2" in a loop. the 3rd thread should continuously print the character "3" in a loop. The 4th thread should continuously check for keyboard input. As soon as the user presses the Q key, the program should terminate. Right before termination, the main() function displays the number of 1's, 2's, and 3's printed out by each thread. . . . Sample Output 1111111111111111111111111111111111111122222222222111111111112222222222 2222233333333333333312222222222222111111112222222221111111111111222222 2222222222222222211111111111333333333333333313333333111111111111111333 3333332222222222222111111111113333333322222222222111111111111333333333 333322222222222222333333333333333 3333333333222 2222222223 Number of ls 141 Number of 2s 121 Number of 3s 98 11 | =

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