scoreboard.cpp:

void insert$\_$sorted$($Node$*$& head, const Climber& climber$)\{$

Node$*$ new$\_$node $=$ new Node$\{$climber$,$ nullptr$\}$;

if $(!$head $||$ climber.score $>$ head$->$climber.score$)\{$

new$\_$node$->$next $=$ head;

head $=$ new$\_$node;

return;

$\}$

Node$*$ current $=$ head;

while $($current$->$next && current$->$next$->$climber.score $>$ climber.score$)\{$

current $=$ current$->$next;

$\}$

new$\_$node$->$next $=$ current$->$next;

current$->$next $=$ new$\_$node;

$\}$

Node$*$ find$($Node$*$ head, const char$*$ name$)\{$

while $($head$)\{$

if $($strcmp$($head$->$climber.name, name$)==0)\{$

return head; $//$ Return Node$*($the node itself, not just the climber$)$

$\}$

head $=$ head$->$next;

$\}$

return nullptr;

$\}$

void clear$($Node$*$& head$)\{$

while $($head$)\{$

Node$*$ temp $=$ head;

head $=$ head$->$next;

delete temp;

$\}$

$\}$

void write$($std::ostream& out, Node$*$ head$)\{$

out $$ std::left $$ std::setw$(8)$ "Rank"

$$ std::setw$(20)$ "Name"

$$ std::setw$(8)$ "Country"

$$ "Score

$"$;

int rank $=1$;

while $($head$)\{$

out $$ std::left $$ std::setw$(8)$ rank$++$;

write$($out$,$ head$->$climber$)$;

out

$\text{'}$;

head $=$ head$->$next;

$\}$

$\}$

scoreboard.h:

struct Node $\{$

Climber climber;

Node $*$next;

$\}$;

void insert$\_$sorted$($Node$*$& head, const Climber& climber$)$;

Node$*$ find$($Node$*$ head, const char$*$ name$)$;

void clear$($Node$*$& head$)$;

void write$($Node$*$ head, std::ostream& out$)$;

#endif $//$ SCOREBOARD$\_$H

main.cpp:

Node$*$ build$\_$scoreboard$($const char$*$ filename$)\{$

std::ifstream file$($filename$)$;

if $(!$file.is$\_$open$())\{$

std::cerr $$ "Error: Could not open file $"$ filename

$\text{'}$;

return nullptr;

$\}$

Node$*$ list $=$ nullptr;

Climber climber;

while $($read$($file$,$ climber$))\{$

insert$\_$sorted$($list$,$ climber$)$;

$\}$

return list;

$\}$

int main$($int argc, char$*$ argv$[])\{$

if $($argc $<mtext></mtext><mn>2</mn><mtext></mtext><mi>|</mi><mi>|</mi>$ argc $>3)\{$

std::cerr $$ "Usage: $"$ argvlead$\_$file$]$

$"$;

return $1$;

$\}$

Node$*$ bouldering$\_$list $=$ build$\_$scoreboard$($argv$[1])$;

if $(!$bouldering$\_$list$)$ return $1$;

std::cout strstr$($argv$[1],$ "bouldering"$)?$ "Bouldering results:

$"$ : "Lead results:

$")$;

write$($bouldering$\_$list, std::cout$)$;

Node$*$ lead$\_$list $=$ nullptr;

if $($argc $==3)\{$

lead$\_$list $=$ build$\_$scoreboard$($argv$[2])$;

if $(!$lead$\_$list$)\{$

clear$($bouldering$\_$list$)$;

return $1$;

$\}$

std::cout

strstr$($argv$[2],$ "lead"$)?$ "Lead results:

$"$ : "Bouldering results:

$")$;

write$($lead$\_$list, std::cout$)$;

Node$*$ combined$\_$list $=$ nullptr;

Node$*$ current $=$ bouldering$\_$list;

while $($current $!=$ nullptr$)\{$

insert$\_$sorted$($combined$\_$list, current$->$climber$)$;

current $=$ current$->$next;

$\}$

current $=$ lead$\_$list;

while $($current $!=$ nullptr$)\{$

Node$*$ found $=$ find$($combined$\_$list, current$->$climber.name$)$; by name

if $($found$)\{$

found$->$climber.score $+=$ current$->$climber.score;

$\}$ else $\{$

insert$\_$sorted$($combined$\_$list, current$->$climber$)$;

$\}$

current $=$ current$->$next;

$\}$

std::cout

Combined results:

$"$;

write$($combined$\_$list, std::cout$)$;

clear$($combined$\_$list$)$;

$\}$

clear$($bouldering$\_$list$)$;

clear$($lead$\_$list$)$;

return $0$;

$\}$

climber.h:

const int NAME$\_$SIZE $=64$;

const int COUNTRY$\_$SIZE $=4$;

struct Climber $\{$

$$ char name$[$NAME$\_$SIZE$]$;

$$ char country$[$COUNTRY$\_$SIZE$]$;

$$ double score;

$\}$;

std::istream& read$($std::istream& in$,$ Climber& climber$)$;

void write$($std::ostream& out, const Climber& climber$)$;

#endif $//$CLIMBER$\_$H

climber.cpp:

std::istream& read$($std::istream& in$,$ Climber& climber$)\{$

$$ std::string line;

$$ if $(!$std::getline$($in$,$ line$))$ return in;

$$ std::stringstream ss$($line$)$;

$$ std::string country, name, score;

$$ if $($std::getline$($ss$,$ country, $\text{'},\text{'})$ && std::getline$($ss$,$ name, $\text{'},\text{'})$ && std::g$\backslash$

etline$($ss$,$ score$))\{$

$$ std::strncpy$($climber$.$country, country.c$\_$str$(),4)$;

$$ std::strncpy$($climber$.$name, name.c$\_$str$(),64)$;

$$ climber.score $=$ std::stod$($score$)$;

$\}$ else $\{$

$$ in$.$setstate$($std::ios::failbit$)$;

$\}$

$$ return in;

$\}$

void write$($std::ostream& out, const Climber& climber$)\{$

$$ out $$ std::left $$ std::setw$(20)$ climber.name

$$ std::setw$(8)$ climber.country

$$ std::fixed $$ std::setprecision$(1)$ climber.score;

$\}$

EDIT CODE TO COMPILE AND RUN LIKE PICTURE

Two files

When the program is run with both the bouldering and lead datafiles, it should display the following: