Installing and Configuring FlashTool for Xperia Devices in Ubuuntu

I've been constantly switching between my two OSs, Win7 and Linux Mint for just flashing a ROM to my Xperia device. And ofcourse, I hate being in Windows. So, I found this nice little method to do the same in my Linux.
Credits go to these two pages:
http://duopetalflower.blogspot.com/2012/08/flashtool-in-ubuntu-linux.html
http://ubuntuforums.org/showthread.php?t=2084266
1. First of all go to

http://www.flashtool.net/downloads.php

and download the Linux version
2. Extract the 7z then the TAR somewhere and you find the directory FlashTool
3. Now some configuring, first of all you need a package called libusb. By the time you might come to this post the lib may get upgraded so just use your head to handle the scenarios a bit. First off, go to the site

http://libusbx.org

and download the latest tar.bz2 version.
4. Place it somewhere and cd into that directory
5. Type

sudo su

6. You're given root rights, type

tar xvf $(ls | grep "libusb")

This will extract the tar.bz2 file you've downloaded, considering that directory has no other file whose name contains "libusb".
7. Now type

cd $(ls | grep "libusb")

and you'll be inside the extracted directory.
8. Type

$ sudo su
$ ./configure && make && make install && sudo ldconfig

9. Now type this command the configure some USB settings for Flashing interface

sudo cp /etc/udev/rules.d/70-persistent-net.rules /etc/udev/rules.d/80-persistent-usb.rules

10. Open that newly created file in nano using

sudo vi /etc/udev/rules.d/80-persistent-usb.rules

11. Add these lines to the end of the document

SUBSYSTEM=="usb", ACTION=="add", SYSFS{idVendor}=="0fce", SYSFS{idProduct}=="*", MODE="0777"

12. Most of the hard part is done, now just a final installation of the ia32-libs using

 sudo apt-get install ia32-libs 

13. Now you're good to go just go to the directory where your Flash Tool executable is and just type

./FlashTool

Installing openERP in Linux (Ubuntu)

The DEB file supplied by OpenERP site works but you need two extra packages. So, first run this command.

sudo apt-get install postgresql-common postgresql-9.1

Then do the

sudo dpkg -i [the deb file]

In case you find some dependency issues just use

sudo apt-get -f install

Afterward you can access openerp in

http://localhost:8069/web/webclient/home

Use the username: openpg
password: openpgpwd
The default admin password or the Master password is: admin

[For ICPC] Links

Has some nice DP Problems : GitHUB
Has lots of links: Online Resources

[UVa] 574 - Sum It Up

Method: Backtracking
Possible optimizations: Used a map to check if a set was generated before, it takes more time than checking if the numbers were used more than they appeared in input

#include <cstdio>
#include <iostream>
#include <vector>
#include <map>
using namespace std;

vector<int> nlist;
vector< vector<int> > finlist;
bool used[20];
map< vector<int>, bool > mp;
int btracking(int t, int sum, vector<int> temp, int k) {
    //if (!sum) solve[i].clear();

    if (sum == t) {
        if (!mp[temp]) {
            finlist.push_back(temp);
            mp[temp] = true;
        }
        return 0;
    }

    for (k ; k<nlist.size() ; k++) {
        if (!used[k]) {
            if (nlist[k]<=(t-sum)) {
                sum+=nlist[k];
                temp.push_back(nlist[k]);
                used[k] = true;
                btracking(t, sum, temp, k);
                used[k] = false;
                temp.pop_back();
                sum-=nlist[k];
            }
        }
    }

    return 0;
}

int main( void ) {

    int t, n, i, j, x;

    //freopen("574_in.txt","r+",stdin);

    while ( scanf("%d %d",&t,&n) == 2 ) {
        if (!n) break;

        printf("Sums of %d:\n",t);

        nlist.clear();
        for (i=0 ; i<n ; i++) {
            scanf("%d",&x);
            nlist.push_back(x);
            used[i] = false;
        }
        //cout << "-----> " << nlist.size() << endl;

        finlist.clear();
        vector<int> temp;
        temp.clear();
        mp.clear();
        btracking(t, 0, temp, 0);

        if (!finlist.size()) {
            printf("NONE\n");
        }

        //printf("--> %d\n",finlist.size());
        for (i=0 ; i<finlist.size() ; i++) {
            for (j=0 ; j<finlist[i].size() ; j++) {
                if (!j) printf("%d",finlist[i][j]);
                else printf("+%d",finlist[i][j]);
            }
            printf("\n");
        }

    }

    return 0;
}