Thanks

01.01 21.59
04.23 11.22
Answer: 5

12.00 15.00
20.00 21.00
Answer: 1

23.58 00.43
22.27 03.10
Answer: 2

12.00 15.00
01.02 03.07
Answer: 0

01.01 10.59
04.23 04.22
Answer: 5

23.42 01.14
08.10 17.51
Answer: 4

I use long long int with MinGW and have right answer for the input of 1000000000.Why it is still wrong?
Here is my C code.
#include<stdio.h>
#include<math.h>
#include<stdlib.h>
int sum(int a);
int main()
{
    int count[10],i,j,base=0;        //use count[2] to count [9] to store the number of digits
    long long int n,product=0;
    for(i=0;i<10;i++)
        count[i]=0;
    scanf("%lld",&n);
    if(n==1)
        printf("%d\n",1);
    else if(n==0)
        printf("%d\n",10);
    else{
    for(i=9;i>1;i--){
        while(n%i==0){
            n/=i;
            count[i]++;
        }
    }
    if(n==1){
  /*      for(i=2;i<=9;i++){
            for(j=0;j<count[i];j++){
                printf("%d",i);
            }
        }
  */
        for(i=9;i>=2;i--){
            product=product+i*sum(count[i])*pow(10,base);
            base=base+count[i];
        }
        printf("%lld",product);
    }
    else
        printf("%d",-1);
    printf("\n");
    }
    system("pause");
    return 0;
}

int sum(int a)
{
    int term=1,i,result=0;
    for(i=0;i<a;i++){
        result+=term;
        term*=10;
    }
    return result;
}

Hi. What is the answer to 1A "window" or "aisle"?

I have checked all known numbers - result is right. When I submit code, system writes: Wrong answer. Where is error? Thank You!

using System;

class Program
{
    static void Main()
    {
        int a = int.Parse(Console.ReadLine());
        int r = 0;
        if (a <= System.Math.Abs(10000))
        {
            if (a > 1)
            {
                for (int i = 1; i <= a; i++)
                {
                    r += i;
                }
            }
            if (a < 1)
            {
                for (int i = 1; i >= a; i--)
                {
                    r += i;
                }
            }
            Console.WriteLine(r);
        }
        else
            throw new Exception("Wrong number");
    }
}

please, someone explain the test case. i don't get how it is 540.0

Statement of problem is incorrect!
I think, that many users agree with me.
Fix it or "fix" author of this problem.
He is very crazy man(IMHO)

Just "norm" matrix after every calculating (a[i][j] make 1 if it was positive) or you will have overflow

#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>

using namespace std;

const int N = 250009;
char s[N];

int main()
{
    scanf("%s", s);
    int len, i, j;
    len = strlen(s);
    for (i = 1, j = 0; i < len; ++i) {
        if (s[i] == s[j]) {
            s[i] = 96;
            s[j] = 96;
            i++;
            while (s[j] == 96)  j--;
            while (j>=0 && i<len && s[i] == s[j]) {
                s[j] = 96;
                s[i] = 96;
                j--;
                i++;
            }
            j = i;
        }
        else
            j = i;
    }
    for (i = 0; i < len; ++i)
        if (s[i] != 96)
            printf("%c", s[i]);
    printf("\n");
    return 0;
}

There were two problem "Bricks" (1234 and 1311). New name of problem 1311 is "Stable Construction".

1434 = Bus Routes = Автобусные маршруты = 1137 :-D

 why a programe crash?

Old name "Cops and Robbers" could be confusing because of problem 1277 "Cops and Thieves". New name is "Catch the thief!"

It seems Java tests have problems. C++ is OK. Thanks

What's the test #3?

There should be 'than' in the statement 'more then P%' and 'less then Q%'~~

How to set up a new problem (test with more problems) in your page.