Discussion of chess software programming and technical issues.
Moderators: hgm , Rebel , chrisw
jhaglund2
Posts: 65Joined: Mon Jan 16, 2017 6:28 pm
Post by jhaglund2 Sun Jul 02, 2017 7:50 am
I'm looking for some help with sorting information taken from a file.
Code: Select all
Example: data.txt
10 3 41 12 1
23 12 34 22 3
32 3 30 2 12
output:
1 3 10 12 41
3 12 22 23 34
2 3 12 30 32
Code: Select all
int parse()
{
lines();
int max = 5 * numLines;
std::string line;
int log[max];
ifstream data ("data.txt");
std::vector<int> v, w, x, y, z;
if(data.is_open())
{
int i;
int j;
while (std::getline (data, line))
{
std::stringstream parse(line);
parse >> i;
v.push_back(i);
log[j] = i;
cout << log[j] << " ";
parse >> i;
w.push_back(i);
log[j] = i;
cout << log[j] << " ";
parse >> i;
x.push_back (i);
log[j] = i;
cout << log[j] << " ";
parse >> i;
y.push_back (i);
log[j] = i;
cout << log[j] << " ";
parse >> i;
z.push_back (i);
log[j] = i;
cout << log[j] << " ";
cout << endl;
cout << "sorting ... " << endl;
cout << line << endl; // display sort after.
}
}
}
Or...
Code: Select all
int sort() {
lines();
string m1st, m2nd, m3rd, m4th, m5th;
ifstream readFile("data.txt");
string line;
int max = 5 * numLines;
string parse[max];
while(getline(readFile,line)) {
stringstream iss(line);
getline(iss, m1st, ' ');
getline(iss, m2nd, ' ');
getline(iss, m3rd, ' ');
getline(iss, m4th, ' ');
getline(iss, m5th);
iss >> ws;
if(iss == " ") {
break;
}
//before
cout << " m1 " << m1st << " m2 " << m2nd << " m3 " << m3rd << " m4 " << m4th << " m5 " << m5th << endl;
cout << " " << endl;
for(int p = 0; p < numLines*5;){
cout << parse[p] << " ";
p++;
}
//after
cout << "sorting ... " << endl;
cout << endl;
cout << " m1 " << m1st << " m2 " << m2nd << " m3 " << m3rd << " m4 " << m4th << " m5 " << m5th << endl;
cout << " m1 " << parse[1] << " m2 " << parse[2] << " m3 " << parse[3] << " m4 " << parse[4] << " m5 " << parse[5] << endl;
cout << endl;
}
readFile.close();
cout << "end of sort(); "<< endl;
}
Any help is welcome!
elcabesa
Posts: 855Joined: Sun May 23, 2010 1:32 pm
Post by elcabesa Sun Jul 02, 2017 8:21 am
I really don't understood what is the question.
AndrewGrant
Posts: 1750Joined: Tue Apr 19, 2016 6:08 amLocation: U.S.AFull name: Andrew Grant
Post by AndrewGrant Sun Jul 02, 2017 8:31 am
This seems like more of a Stackoverflow question than a Talkchess question...
#WeAreAllDraude #JusticeForDraude #RememberDraude #LeptirBigUltra"Those who can't do, clone instead" - Eduard ( A real life friend, not this forum's Eduard )
AlvaroBegue
Posts: 931Joined: Tue Mar 09, 2010 3:46 pmLocation: New YorkFull name: Álvaro Begué (RuyDos)
Post by AlvaroBegue Sun Jul 02, 2017 8:44 am
AndrewGrant wrote: This seems like more of a Stackoverflow question than a Talkchess question...
It looks more like a homework question than anything else, actually.
In Perl:
Code: Select all
perl -ane 'print join " ", (sort {$a<=>$b} @F), "\n"'
jhaglund2
Posts: 65Joined: Mon Jan 16, 2017 6:28 pm
Post by jhaglund2 Sun Jul 02, 2017 8:51 am
elcabesa wrote: I really don't understood what is the question.
Need to sort each line in the text file from smallest to largest. The above is what I have so far.
jhaglund2
Posts: 65Joined: Mon Jan 16, 2017 6:28 pm
Post by jhaglund2 Sun Jul 02, 2017 8:53 am
AndrewGrant wrote: This seems like more of a Stackoverflow question than a Talkchess question...
Thanks for the suggestion. I will look into that site.
jhaglund2
Posts: 65Joined: Mon Jan 16, 2017 6:28 pm
Post by jhaglund2 Sun Jul 02, 2017 8:58 am
AlvaroBegue wrote: AndrewGrant wrote: This seems like more of a Stackoverflow question than a Talkchess question...
It looks more like a homework question than anything else, actually.
In Perl:
Code: Select all
perl -ane 'print join " ", (sort {$a<=>$b} @F), "\n"'
No, not homework, just a personal project that I've been stuck on for years... and I finally came back to it. Multi-purpose, like most things chess or not... Thanks for trying.
elpapa
Posts: 211Joined: Sun Jan 18, 2009 11:27 pmLocation: SwedenFull name: Patrik Karlsson
Post by elpapa Sun Jul 02, 2017 3:00 pm
Code: Select all
#include <algorithm>
#include <fstream>
#include <iostream>
#include <sstream>
#include <string>
#include <vector>
int main()
{
std::ifstream data("data.txt");
std::string line;
std::vector<int> v;
while (std::getline(data, line)) {
v.clear();
std::istringstream parse(line);
int i;
while (parse >> i)
v.push_back(i);
std::sort(v.begin(), v.end());
for (int o : v)
std::cout << o << " ";
std::cout << std::endl;
}
std::cout << "Press Enter to exit";
std::cin.get();
return 0;
}
AlvaroBegue
Posts: 931Joined: Tue Mar 09, 2010 3:46 pmLocation: New YorkFull name: Álvaro Begué (RuyDos)
Post by AlvaroBegue Sun Jul 02, 2017 3:03 pm
I wrote this last night, before seeing Patrik's code. Apparently it's a very natural way to do it.
Code: Select all
#include <iostream>
#include <sstream>
#include <string>
#include <vector>
#include <algorithm>
int main() {
std::vector<int> v;
std::string line;
while (std::getline(std::cin, line)) {
std::istringstream iss(line);
v.clear();
int i;
while (iss >> i)
v.push_back(i);
std::sort(v.begin(), v.end());
for (auto x : v)
std::cout << x << ' ';
std::cout << '\n';
}
}
EDIT: Note that even most of the variables have the same names!!! The biggest difference between the two programs seems to be that I work in a Unix style --where it's natural to read from standard input and write to standard output-- and he probably works on Windows.
elpapa
Posts: 211Joined: Sun Jan 18, 2009 11:27 pmLocation: SwedenFull name: Patrik Karlsson
Post by elpapa Sun Jul 02, 2017 4:02 pm
AlvaroBegue wrote: The biggest difference between the two programs seems to be that I work in a Unix style --where it's natural to read from standard input and write to standard output-- and he probably works on Windows.
Great minds think alike
And yes, I primarily work on Windows.
