10018 - Reverse and Add

[hoimo]

Why WA? my code is correct for all possible input.

please help.

code removed after AC

[brianfry713]

Try using long long instead of long, and atoll instead of atoi.

[hoimo]

yes i got it. atol made it. thank you very much.

[blackheartadhar]

Removed! After Accepted!

[brianfry713]

Doesn't match the sample I/O.

[bimajw]

Accepted

[brianfry713]

Try using long long instead of long

[bimajw]

thanks brianfry713
i got AC

[Shahidul.CSE]

Why WA with my code?

Code: Select all

Code Removed after Accepted

[lbv]

Why WA with my code?

Try:

Input

Code: Select all

1
123789

Output

Code: Select all

2 1222221

[lighted]

You must check input in this thread first.

Try this testcase:
Input:
2
2
99
Output:
1 4
6 79497

You must repeat "reverse and add" method at least once and then check if it is a palindrome.
This is statement is wrong.

1)If n is already pallindrome, output is 0 n

[Shahidul.CSE]

Thank you lighted and lbv.
Got accepted !

[lbv]

You must check input in this thread first. (..)
This is statement is wrong.

My AC program produces:

Input

Code: Select all

2
2
99

Output

Code: Select all

0 2
0 99

So it seems that the statement "If n is already pallindrome, output is 0 n" (which Shahidul.CSE may have inferred from previous test cases posted in these forums) is not wrong. It may be the case that the judge's data sets don't contain cases in which the number is a palindrome from the start.

[brianfry713]

The first line in the problem statement:
The "reverse and add" method is simple: choose a number, reverse its digits and add it to the original. If the sum is not a palindrome (which means, it is not the same number from left to right and right to left), repeat this procedure.

You should repeat the method at least once, but there are no inputs where P is a palindrome in the judge's input, so you'll get AC either way.

[battirunner]

Getting Compile error in ANSI C.... which can be the problem ? anyone help plzzz....

Code: Select all

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
int main()
{
int itaration,test;
unsigned int number1,number2;
char num1[50],num2[50];
scanf("%d",&test);
getchar();

while(test--)
{
    gets(num1);
    itaration=0;
    while(1)
    {

    itaration++;
    strcpy(num2,num1);
    strrev(num2);
   number1=atoi(num1);
   number2=atoi(num2);
   number1=number1+number2;
   itoa(number1,num1,10);
   strcpy(num2,num1);
   if(!strcmp(num1,strrev(num2)))
   {

    printf("%d %s\n",itaration,num1);
    break;
   }

    }

}

return 0;
}