1035.cpp

/*
   pat 1035
   author chm
   */

#include <cctype>
#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <cassert>
#include <list>
#include <queue>
#include <vector>
#include <sstream>
#include <iostream>
#include <algorithm>
using namespace std;

int n;

struct T
{
    string name, pwd;
} accu[1086];

int main()
{
#define ONLINE_JUDGE
#ifndef ONLINE_JUDGE
    assert(freopen("in", "r", stdin) != NULL);
    assert(freopen("out", "w", stdout) != NULL);
#endif

    vector<int> seq;
    while (cin >> n)
    {
        int cnt = 0;
        for (int i = 0; i < n; ++i)                 //one line
        {
            cin >> accu[i].name >> accu[i].pwd;
            bool moded = false;
            for (int j = 0; j < accu[i].pwd.length(); ++j) //do with pwd
            {
                int flag = 1;
                char ch = accu[i].pwd[j];
                switch (ch)
                {
                case '1':
                    ch = '@';
                    break;
                    /*
                        O by o
                        */
                case '0':
                    ch = '%';
                    break;
                case 'l':
                    ch = 'L';
                    break;
                case 'O':
                    ch = 'o';
                    break;
                default:                // not changed
                    flag = 0;
                    break;
                }
                if (flag)
                {
                    cerr << "n: " << i+1 << ' ' << accu[i].pwd[j] <<endl;
                    moded = true;
                }
                accu[i].pwd[j] = ch;
            }
            if (moded)
            {
                cerr << "i ----> " << i << endl;
                seq.push_back(i);
                ++cnt;
            }
        }
        cerr << "cnt :" << cnt << endl;
        if (cnt)
        {
            cout << cnt << endl;
            for (int i = 0; i < cnt; ++i) 
                cout << accu[seq[i]].name <<' ' << accu[seq[i]].pwd << endl;
        }
        else
        {
            const char* str = (n > 1) ? "are " : "is ";
            const char* str1 = (n > 1) ? "s" : ""; 
            cout << "There " << str << n 
                << " account" << str1 << " and no account is modified" << endl;
        }
    }


#ifndef ONLINE_JUDGE
    fclose(stdout);
    assert(freopen("/dev/tty", "w", stdout) != NULL);
    system("diff standard out");
#endif
    return 0;
}