(870665) Please input your shell command:
onechild
(870665)Hello, I am a parent process
(870666)Hello, I am a child process
(870665) Please input your shell command:
addnumbers
(870665)Please input number, (0) to terminate
1
(870665)Read  1
(870665)Please input number, (0) to terminate
(870667)The subtotal is: 1
2
(870665)Read  2
(870665)Please input number, (0) to terminate
(870667)The subtotal is: 3
3
(870665)Read  3
(870665)Please input number, (0) to terminate
(870667)The subtotal is: 6
4
(870665)Read  4
(870665)Please input number, (0) to terminate
(870667)The subtotal is: 10
0
(870665)Read  0
(870667)The subtotal is: 10
(870665)The sum is 10
(870665) Please input your shell command:
exec
(870665) Please input exec subcommand
ls
;
a.out  sample_run_1.txt  solution.c
(870665) Please input your shell command:
processtree
Please input the integer
3
(870665)The value is 0
(870671)The value is 4
(870672)The value is 2
(870676)The value is 3
(870674)The value is 1
(870673)The value is 6
(870675)The value is 5
(870677)The value is 7
(870665) Please input your shell command:
stop