How come that my code passed all tests except this one? What ability is tested there?

First test

Var
 n,i,s,a,g:integer;
 b:array [1..1000000] of integer;
Begin
 ReadLn(n);
 s:=0;
 for i:=1 to n do
  ReadLn(b[i]);
 for i:=1 to n do
 begin
  a:=b[i]+b[i+1]+b[i+2];
  if a>s then
  begin
   s:=a;
   g:=i+1;
  end;
 end;
 WriteLn(s,' ', g);
End.

#include <iostream>

using namespace std;


int main()
{
    int k,a[1001],i(0),s(0),maxs(0),j(0);

    cin >> k;
    while(i<k)
    {
        cin >> a[i];
        i++;
    }

    for (i=0; i<k; i++){
        if (a[i]==a[i+1] && a[i]==a[i+2])
        {
            s = a[i]*3;
            j = i+2;
        }
        if (s > maxs)
        {
            maxs = s;
            s = 0;
        }
    }
    cout<<maxs<<"\n"<<j<<endl;
}

Edited by author 10.02.2014 22:44

#include <iostream>

using namespace std;

int step(long int mas[],int n)
{
    int i;
    int sum=0;
    for(i=n;i<n+3;i++)
        sum=sum+mas[i];

    return sum;
}

int main()
{
    int n,i;
    long int res;
    long int mas[1000];
    cin >> n;
    for(i=0;i<1001;i++)
        mas[i]=0;

    for(i=0;i<n;i++)
        cin >> mas[i];
    int sum=step(mas,0);
    res=0;

    for(i=0;i<n-2;i++)
        if(step(mas,i)<step(mas,i+1))
        {
            sum=step(mas,i+1);
            res=i+3;
        }

    cout << sum << " " << res;
    return 0;
}

#include <iostream>

using namespace std;

int main()
{
    int n, i, j;
    cin >> n;
    long *a = new long[n];
    long *b = new long[n];
    long *c = new long[n];
    for (i = 0; i < n; i++) cin >> a[i];
    for (i = 0; i <= n - 3; i++){
        b[i] = a[i] + a[i + 1] + a[i + 2];
        c[i] = i + 2;
    }
    for (j = 0; j <= n; j++)
    for (i = j+1; i <= n; i++)
    if (b[i] == b[j]){
        c[i] = c[j];
    }
    long max = b[0];
    long imax = c[0];
    for (i = 0; i <= n - 4; i++)
    if (b[i] < b[i + 1]){
        max = b[i + 1];
        imax = c[i + 1];
    }
    cout << max << ' ' << imax << endl;
}

Edited by author 20.10.2013 00:12

Edited by author 20.10.2013 00:12

Edited by author 01.06.2013 22:05

what is test case 7?
I think my doing well.
#include<stdio.h>
int main()
{
    int n,val[1001],pos1=2,pos2=1,sum[1001];
    scanf("%d",&n);
    for(int i=1;i<=n;i++)
        scanf("%d",&val[i]);
    for(int i=2;i<=n-1;i++)
    {
        sum[i]=val[i-1]+val[i]+val[i+1];
    }
    for(int i=2;i<=n-1;i++)
    {
        if(sum[i]>=sum[i+1])
        {
            sum[i+1]=sum[i];
            pos2++;
        }
        else if(sum[i]<sum[i+1])
        {
            pos1+=pos2;
            pos2=1;
        }
    }
    printf("%d %d",sum[n-1],pos1);
}

Please help pass the test 6. It is very necessary.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _1910
{
    class Program
    {
        static void Main(string[] args)
        {
            string str = Console.ReadLine();
            int n = int.Parse(str);
            string[] mas = Console.ReadLine().Split(' ');
            int[] a=new int[n];
            for (int i=0; i<n; i++)
                a[i]=int.Parse(mas[i]);
            int sum=0, j=0, maxsum=0;
            if (n >= 3)
            {
                for (int i = 0; i < n - 2; i++)
                {
                    if ((a[i] == a[i + 1]) && (a[i] == a[i + 2]))
                    {
                        sum = a[i]*3;
                        j = i + 2;
                    }
                    if (sum > maxsum)
                    {
                        maxsum = sum;
                        sum = 0;
                    }
                }
            }
            Console.WriteLine(maxsum + " " + j);
        }
    }
}

For WA #6:
It is not necessarily the three consecutive numbers to be equal. So if you have the test:
3
1 2 3
the answer should be 6 2.

For WA #2:
The consecutive numbers, which you sum, have to be exactly three.

main()
{ int n,i;
  long a[1001],maxsum=0,nsum,nmaxsum,sum=0;
scanf ("%d",&n);

for (i=0; i<n; i++) {
    scanf ("%ld",&a[i]);
    if (i>=2) {
       if (a[i-2]==a[i-1] && a[i-1]==a[i]) {
       sum=a[i-2]+a[i-1]+a[i];
       nsum=i;
       }

       if (sum>=maxsum) {
          maxsum=sum;
          nmaxsum=nsum;
       }
    }

}
printf ("%ld %d",maxsum, nmaxsum);


}

3
1 1 1

answer
3 2

Guys, i run program and it works. Why does it crash?
Could you point me to the problem in my code?

public static void main(String[] args) throws IOException {
        int sum=0;
        Scanner s = new Scanner (System.in);
        int a = s.nextInt ();

        BufferedReader br = new BufferedReader (new InputStreamReader (System.in));
        String s1 = br.readLine ();


        for (int i = 0; i<a-2; i++) {
            if (s1.charAt (i)==s1.charAt (i+1) && s1.charAt (i) == s1.charAt (i+2)) {
            String s2 = Character.toString (s1.charAt (i));
            sum = Integer.parseInt (s2);
            System.out.print (sum*3 + " ");

            }
        }

        for (int i = 0; i<a-2; i++) {
            if (s1.charAt (i)==s1.charAt (i+1) && s1.charAt (i) == s1.charAt (i+2)) {

                System.out.print (s1.indexOf(s1.charAt (i))+2);

            }

using System;
static class Module1
{
    public static void Main()
    {
        short n = short.Parse(Console.ReadLine());
        string[] a = Console.ReadLine().Split();
        int i = 0;
        int temp = 0;
        int max = 0;
        int numb = 0;
        while (i + 3 <= n)
        {
            temp = int.Parse(a[i]) + int.Parse(a[i + 1]) + int.Parse(a[i + 2]);
            if (temp > max)
            {
                max = temp;
                numb = i + 2;
            }
            i += 1;
        }
        Console.WriteLine(max + " " + numb);
    }
}

Is input always made in given range or your tests may input not allowed numbers
(like -1) and i must write code to handle this input error?

Must this numbers 1 4 4 4 1 1  be randomly generated or what?  Must numbers other than 4 (in this case) be always 1? Or be the same?

Edited by author 25.01.2013 20:56

Edited by author 25.01.2013 20:56

"Output two integers separated with a space. They should be the maximum total force of the field acting on three consecutive sections of the wall and the number of the middle section in this segment. It is guaranteed that there is only one answer.
"

Can anybody tell me what is the number of the middle section in this segment? I tried to print the number of section in three consecutive sections which have the same value with the middle section, but I got WA2. I already tried some other ideas but they didn't work.

Give me some tests

My solution passed all tests what I could think of. But I got WA on test #2. What's wrong?
Give me some tests, please.

Edited by author 14.11.2012 16:53

1.
What did the question marks ("?") mean in the contest standings page?
And they disappeared when the contest finished.

2.
In the judge status page, do the memory and time fields show the longest and biggest values in all finished tests or the values of the last test?

Thanks
Ade

1 4 1 4 1 4

12 4