What Does This Code Do$?)$ What does this program do$?$

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$1//$ Ex$.8\mathrm{.}13$: ex$08\_13.$cpp

$2//$ What does this program do$?$

$3$ #include

$4$ using namespace std;

$5$

$6$ void mystery$1($ char $*,$ const char $*)$; $//$ prototype

$7$

$8$ int main$()$

$9\{$

$10$ char string$1[80]$;

$11$ char string$2[80]$;

$12$

$13$ cout $<<$ "Enter two strings: $"$;

$14$ cin $>>$ string$1>>$ string$2$;

$15$ mystery$1($ string$1,$ string$2)$;

$16$ cout $<<$ string$1<<$ endl;

$17\}//$ end main

$18$

$19//$ What does this function do$?$

$20$ void mystery$1($ char $*$s$1,$ const char $*$s$2)$

$21\{$

$22$ while $(*$s$1!=\text{'}\backslash 0\text{'})$

$23++$s$1$;

$24$

$25$ for $($ ; $(*$s$1=*$s$2)$; $++$s$1,++$s$2)$

$26$ ; $//$ empty statement

$27\}//$ end function mystery$1$

$8\mathrm{.}14($What Does This Code Do$?)$ What does this program do$?$

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$1//$ Ex$.8\mathrm{.}14$: ex$08\_14.$cpp

$2//$ What does this program do$?$

$3$ #include

$4$ using namespace std;

$5$

$6$ int mystery$2($ const char $*)$; $//$ prototype

$7$

$8$ int main$()$

$9\{$

$10$ char string$1[80]$;

$11$

$12$ cout $<<$ "Enter a string: $"$;

$13$ cin $>>$ string$1$;

$14$ cout $<<$ mystery$2($ string$1)<<$ endl;

$15\}//$ end main

$16$

$17//$ What does this function do$?$

$18$ int mystery$2($ const char $*$s $)$

$19\{$

$20$ unsigned int x;

$21$

$22$ for $($ x $=0$; $*$s $!=\text{'}\backslash 0\text{'}$; $++$s $)$

$23++$x;

$24$

$25$ return x;

$26\}//$ end function mystery$2$