how to use recursive to find longest-path?











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I have a question like:




Write a recursive procedure for computing the longest-path lengths that does not store vertices to be processed explicitly in a data structure: so, the new procedure should not contain the variable Q




according to I recognition, I write down like that:



FindLongest(notYetJoinedSet n, alreadyJoinedSet a){
if(n is empty)
end

max= 0;
for (every member of n as i ) {
if (i>max ){
max = i
}
}

a.add(max)
FindLongest(n,a)

}


Is it any wrong or I misunderstand something?










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  • This is not problem formulation, just arbitrary pieces of thoughts. Note that we cannot see problem description in your book or computer (well, not all of us ;)
    – MBo
    Nov 8 at 11:42












  • it's real, the question just like that. no context I think this's about Dijkstra algorithm but I'm not pretty sure
    – Shawn Plus
    Nov 8 at 11:59












  • So what is "the variable Q" for example? There is a lot of context missing.
    – Henry
    Nov 8 at 12:36















up vote
-1
down vote

favorite












I have a question like:




Write a recursive procedure for computing the longest-path lengths that does not store vertices to be processed explicitly in a data structure: so, the new procedure should not contain the variable Q




according to I recognition, I write down like that:



FindLongest(notYetJoinedSet n, alreadyJoinedSet a){
if(n is empty)
end

max= 0;
for (every member of n as i ) {
if (i>max ){
max = i
}
}

a.add(max)
FindLongest(n,a)

}


Is it any wrong or I misunderstand something?










share|improve this question
























  • This is not problem formulation, just arbitrary pieces of thoughts. Note that we cannot see problem description in your book or computer (well, not all of us ;)
    – MBo
    Nov 8 at 11:42












  • it's real, the question just like that. no context I think this's about Dijkstra algorithm but I'm not pretty sure
    – Shawn Plus
    Nov 8 at 11:59












  • So what is "the variable Q" for example? There is a lot of context missing.
    – Henry
    Nov 8 at 12:36













up vote
-1
down vote

favorite









up vote
-1
down vote

favorite











I have a question like:




Write a recursive procedure for computing the longest-path lengths that does not store vertices to be processed explicitly in a data structure: so, the new procedure should not contain the variable Q




according to I recognition, I write down like that:



FindLongest(notYetJoinedSet n, alreadyJoinedSet a){
if(n is empty)
end

max= 0;
for (every member of n as i ) {
if (i>max ){
max = i
}
}

a.add(max)
FindLongest(n,a)

}


Is it any wrong or I misunderstand something?










share|improve this question















I have a question like:




Write a recursive procedure for computing the longest-path lengths that does not store vertices to be processed explicitly in a data structure: so, the new procedure should not contain the variable Q




according to I recognition, I write down like that:



FindLongest(notYetJoinedSet n, alreadyJoinedSet a){
if(n is empty)
end

max= 0;
for (every member of n as i ) {
if (i>max ){
max = i
}
}

a.add(max)
FindLongest(n,a)

}


Is it any wrong or I misunderstand something?







algorithm






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 8 at 10:17

























asked Nov 8 at 10:06









Shawn Plus

379




379












  • This is not problem formulation, just arbitrary pieces of thoughts. Note that we cannot see problem description in your book or computer (well, not all of us ;)
    – MBo
    Nov 8 at 11:42












  • it's real, the question just like that. no context I think this's about Dijkstra algorithm but I'm not pretty sure
    – Shawn Plus
    Nov 8 at 11:59












  • So what is "the variable Q" for example? There is a lot of context missing.
    – Henry
    Nov 8 at 12:36


















  • This is not problem formulation, just arbitrary pieces of thoughts. Note that we cannot see problem description in your book or computer (well, not all of us ;)
    – MBo
    Nov 8 at 11:42












  • it's real, the question just like that. no context I think this's about Dijkstra algorithm but I'm not pretty sure
    – Shawn Plus
    Nov 8 at 11:59












  • So what is "the variable Q" for example? There is a lot of context missing.
    – Henry
    Nov 8 at 12:36
















This is not problem formulation, just arbitrary pieces of thoughts. Note that we cannot see problem description in your book or computer (well, not all of us ;)
– MBo
Nov 8 at 11:42






This is not problem formulation, just arbitrary pieces of thoughts. Note that we cannot see problem description in your book or computer (well, not all of us ;)
– MBo
Nov 8 at 11:42














it's real, the question just like that. no context I think this's about Dijkstra algorithm but I'm not pretty sure
– Shawn Plus
Nov 8 at 11:59






it's real, the question just like that. no context I think this's about Dijkstra algorithm but I'm not pretty sure
– Shawn Plus
Nov 8 at 11:59














So what is "the variable Q" for example? There is a lot of context missing.
– Henry
Nov 8 at 12:36




So what is "the variable Q" for example? There is a lot of context missing.
– Henry
Nov 8 at 12:36

















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