I had a hard time with this, so hopefully I will save your time. Read input like this:

int n; cin >> n;
string t;
getline(cin, t); // Necessary to process end of first line (nothing after n)
....
// Now keep getting each line with getline(cin, t)

What is in this Test? What is the difference from previous ones? There are no big numbers, no special cases - as far as I get the task...

Помогите ,пожалуйста , что не так?
#include <iostream>
#include <string>
using namespace std;
int main() {
    int n, s = 0;
    cin >> n;
    string a[1000];
    for (int i = 0; i < n; i++) {
        getline(cin, a[0]);
        for (int j = n + 1; j < n; j++) {
            if (a[i] == a[j]) {
                break;
                s++;
            }
        }
    }
    cout << s;
    return 0;
}


Edited by author 02.12.2019 20:46

Edited by author 14.11.2019 22:47

The answer is correct, but it returns an error. Why? Maybe I did not understand the condition of the task correctly, or can the data be specified for which this code will produce the wrong solution?


using System;

namespace ConsoleApp30
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int x = 0;
            string[] shoplist = new string[n];
            for (int i = 0; i <n; i++)
            {
                shoplist[i] = Console.ReadLine();
            }

            for (int i = 0; i < shoplist.Length; i++)
            {
                for (int j = i + 1; j<shoplist.Length; j++)
                {
                    if (shoplist[i] == shoplist[j])
                    {
                        x++;
                        i++;
                    }
                    else
                    {
                        continue;
                    }
                }
            }

            Console.WriteLine(x);
            //Console.ReadKey();
        }
    }
}

Edited by author 01.11.2017 20:58

Edited by author 16.02.2017 22:39

Edited by author 22.03.2016 20:56

Edited by author 22.03.2016 20:56

i have WA on test #3

my code here:

#include <iostream>
using namespace std;

int main()
{
    int n, s = 0;
    cin >> n;

    string *arr = new string[n];
    string a;
    getline(cin, a);
    for(int i = 0; i < n; i++)
    {
        getline(cin, a);
        for(int j = 0; j < i; j++)
        {
            if(a == arr[j])
            {
                s++;
                break;
            }
            else arr[i] = a;
        }
    }

    cout << s << endl;

    return 0;
}

Edited by author 26.01.2016 21:58

can you give me 5th test, please

that is my code #5 test case is the error
#include<iostream>
#include<cstring>

using namespace std;
int main()
{
    char nmat[1000][31];
    long int no=0;
    long int n;
    cin>>n;


    cin.ignore();
    if(1<=n && n<=1000)
    {

        for(int i=0;i<n;i++)
            cin.getline(nmat[i],30);

        for(int i=1;i<n;i++)
    {
        for(int j=i-1;j>=0;j--)
        {
            if((strcmp(nmat[i],nmat[j]))==0)
            {
                no++;
                break;
            }

        }
    }

    cout<<no;
    system("pause");
    return 0;
    }

}

where is non-zero exit code in my code solving Bayan problem please help me
#include<iostream>
#include<cstring>

using namespace std;

int main()
{
    char nmat[1000][31];
    int no=0;
    int n;
    cin>>n;
    cin.ignore();
    if(1<=n&&n<=1000)
    {
    for(int i=0;i<n;i++)
        cin.getline(nmat[i],30);
    for(int i=1;i<n;i++)
    {
        for(int j=i-1;j>=0;j--)
        {
            if((strcmp(nmat[i],nmat[j]))==0)
            {
                no++;
                break;
            }
        }
    }



    cout<<no;
    }
    system("pause");
    return 0;
}

crc16 hash table is not working on test 7.

someone solved using hash tables?

import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class AcmTimusRu {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        String[] strings = new String[1000];
        Set<String> set = new HashSet<String>();
        int n, i;

        n = s.nextInt();
        n =n +1;
        for (i = 0; i < n; i++) {
            set.add(s.nextLine());
        }
        if (n == set.size()) {
            System.out.println(0);
        } else {
            int n1 = set.size();
            n1 = n - n1;
            System.out.println(n1);
        }
    }
}

Edited by author 01.05.2014 12:20

Edited by author 01.05.2014 12:20

0.062s and 2125Kb

I solve it on C#. With Hashtable it's very easy.

p.s. GL & HF


Edited by author 22.01.2008 17:18

#include <conio.h>
#include <algorithm>
#include <iostream>
#include <cstdio>
#include <stdio.h>
#include <string.h>
using namespace std;
int povtor (char str[31],char mas2[1001][31],int mas2len)
{
    int i;
    for (i=0; i<mas2len; i++) {
        if (strcmp(str,mas2[i])==0)
           return 0;
    }
return 1;
}

int main()
{ int N;
  char mas[1001][31];
  char mas2[1001][31];

  int mas2len=0;

  cin >> N;

  for (int i=0; i<N; i++) {
  cin >> mas[i];
  }

  for (int i=0; i<N; i++) {
      if (povtor(mas[i],mas2,mas2len))
         strcpy(mas2[mas2len++],mas[i]);
  }



  cout << N-mas2len;

getch();
}

I'm pass test only after add ignoring for empty input lines. why empty lines present in tests?

her's my cod! Please help!
using System;

namespace ConsoleApplication1
{
    class Program1563
    {
        static void Main()
        {
            int n = int.Parse(Console.ReadLine());
            string str;
            string[] strl = new string[n];
            int s = -1;
            for (int i = 0; i < n; i++)
            {
                str = Console.ReadLine();
                strl[i] = str;
                Console.WriteLine("i="+i);
                for (int j = 0; j < i; j++)
                {
                    if (str == strl[j])
                        s++;
                }
            }

            Console.WriteLine(s);
                    Console.ReadLine();
        }
    }
}