## 10035 - Primary Arithmetic

All about problems in Volume 100. If there is a thread about your problem, please use it. If not, create one with its number in the subject.

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muktadir.rhmn
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Posts: 6
Joined: Sat May 03, 2014 11:44 am

### Re: 10035 - Primary Arithmetic

please help. why WA???

Code: Select all

``````#include<stdio.h>
#include<string.h>
#include<stdlib.h>

int main()
{
char  num[2][11];
int carry, ans, sumOfDigits, bigNumI, smallNumI, bigNumDigits, smallNumDigits, tmp;

scanf("%s %s", num[0], num[1]);
while(!(atoi(num[1]) == 0 && atoi(num[0]) == 0)){

carry = 0;
ans = 0;
bigNumDigits = strlen(num[0]);
smallNumDigits = strlen(num[1]);
if ( bigNumDigits < smallNumDigits){
tmp = bigNumDigits;
bigNumDigits = smallNumDigits;
smallNumDigits = tmp;
bigNumI = 1;
smallNumI = 0;
}
else{
bigNumI = 0 ;
smallNumI  = 1 ;
}

while( smallNumDigits--){
sumOfDigits = num[bigNumI][--bigNumDigits] + num[smallNumI][smallNumDigits] + carry;
if (sumOfDigits > 105){
carry = 1;
ans ++;
}
else
carry = 0;
}

while(bigNumDigits-- && carry){
sumOfDigits = num[bigNumI][bigNumDigits] + carry;
if (sumOfDigits > 57){
carry = 1;
ans ++;
}
else
carry = 0;
}

/* output*/
if(ans)
printf("%d carry operations.\n", ans);
else
printf("No carry operation.\n");

scanf("%s %s", num[0], num[1]);

}
return 0;
}
``````

lbv
Experienced poster
Posts: 128
Joined: Tue Nov 29, 2011 8:40 am

### Re: 10035 - Primary Arithmetic

muktadir.rhmn wrote:please help. why WA???
The code you posted doesn't pass the sample cases from the problem statement. Notice that the output from your program must match the expected output exactly. For example the strings "operation" and "operations" are considered different.

muktadir.rhmn
New poster
Posts: 6
Joined: Sat May 03, 2014 11:44 am

### Re: 10035 - Primary Arithmetic

thnx a lot . got AC

zishan
New poster
Posts: 1
Joined: Sat Jun 21, 2014 8:46 am

### Re: 10035 - Primary Arithmetic

Your code is ok,there is no minor mistake,please check your code with sample output

fakeillution
New poster
Posts: 1
Joined: Sat Jul 19, 2014 5:13 pm

### Re: 10035 - Primary Arithmetic

please help,why WA?
#include <iostream>
#include <algorithm>
using namespace std;
int main()
{
while(1)
{
long long a,b;
cin>>a>>b;
if(a==0 && b==0)break;
if(a<b)swap(a,b);
int carry=0,flag=0,temp;
while(a)
{
if(flag)
temp=(a%10)+(b%10)+1;
else temp=(a%10)+(b%10);
if(temp>=10)
{

if(a/10)
{
carry++;
flag=1;
}
else
{
if(flag)carry++;
}
}
else flag=0;

a=a/10;
b=b/10;

}
if(!carry)
cout<<"No carry operation."<<endl;
else if(carry==1)
cout<<carry<<" carry operation."<<endl;
else
cout<<carry<<" carry operations."<<endl;
}
}

lighted
Guru
Posts: 585
Joined: Wed Jun 11, 2014 9:56 pm
Location: Kyrgyzstan, Bishkek

### Re: 10035 - Primary Arithmetic

I don't understand why are you checking this,

Code: Select all

``if(flag)carry++;``

increasing

Code: Select all

``carry++``

must be done always if

Code: Select all

``if temp>=10``

It must be

Code: Select all

``````if(temp>=10)
{

if(a/10)
{
carry++;
flag=1;
}
else
{
carry++;
}
}
``````
Or it must be

Code: Select all

``````if(temp>=10)
{
carry++;

if(a/10)
flag=1;
}
``````
Don't forget to remove your code after getting accepted.
A person who sees the good in things has good thoughts. And he who has good thoughts receives pleasure from life... Bediuzzaman

ehsanulbigboss
New poster
Posts: 32
Joined: Tue Jul 22, 2014 1:17 am

### 10035 - Primary Arithmetic

OK!!!
Last edited by ehsanulbigboss on Tue Jul 22, 2014 7:52 pm, edited 1 time in total.

lighted
Guru
Posts: 585
Joined: Wed Jun 11, 2014 9:56 pm
Location: Kyrgyzstan, Bishkek

### Re: 10035 - Primary Arithmetic

You must search topics about your problem first.
Insert problem number 10035 into search box and you will get many explanations why your code may get WA.
http://acm.uva.es/board/search.php?keyw ... 2e7ff678c7

After first case you forget to set n to zero. Add line n = 0;

Code: Select all

``````while (scanf("%ld %ld",&x,&y)==2)
{
n = 0;
if (x==0 && y==0)
break;
``````
Don't forget to remove your code after getting accepted.
A person who sees the good in things has good thoughts. And he who has good thoughts receives pleasure from life... Bediuzzaman

axelblaze
New poster
Posts: 34
Joined: Mon Jun 23, 2014 7:45 pm

### Re: 10035 - Primary Arithmetic

I've tested some critical I/Os but still getting WA.
please help...

Code: Select all

``Removed after AC``
Last edited by axelblaze on Mon Aug 18, 2014 9:15 am, edited 1 time in total.

lighted
Guru
Posts: 585
Joined: Wed Jun 11, 2014 9:56 pm
Location: Kyrgyzstan, Bishkek

### Re: 10035 - Primary Arithmetic

My advice to you -> always copy/paste output format from sample or problem description.
Your output

Code: Select all

``1 carry operations.``
Sample output

Code: Select all

``1 carry operation.``
A person who sees the good in things has good thoughts. And he who has good thoughts receives pleasure from life... Bediuzzaman

axelblaze
New poster
Posts: 34
Joined: Mon Jun 23, 2014 7:45 pm

### Re: 10035 - Primary Arithmetic

Thanks lighted... How silly of me...!

battirunner
New poster
Posts: 14
Joined: Fri Aug 15, 2014 3:48 pm

### Re: 10035 - Primary Arithmetic

why WA, checked a lot,,,, pleas help.
#include<stdio.h>
#include<string.h>
int main()
{
char a[14],b[14];
int c=0,i,l,carry=0;
while(1)
{
scanf("%s%s",a,b);
if(a[0]=='0'&&b[0]=='0')
break;
i=strlen(a);
l=strlen(b);
i--;
l--;
while(i>=0&&l>=0)
{

if(((a+b[l])+carry-96)>9)
{
c++;
carry=1;
}
else
carry=0;

i--;
l--;

}

if(i>l)
{
if((a+carry)>57)
c++;
}
else if(l>i)
{
if((b[l]+carry)>57)
c++;
}
if(c==0)
printf("No ");
else
printf("%d ",c);

printf("carry operation");
if(c<2)
printf(".\n");
else
printf("s.\n");

c=0;
a[0]='\0';
b[0]='\0';
carry=0;
}
return 0;
}

lighted
Guru
Posts: 585
Joined: Wed Jun 11, 2014 9:56 pm
Location: Kyrgyzstan, Bishkek

### Re: 10035 - Primary Arithmetic

Input

Code: Select all

``999 1``
Output

Code: Select all

``3 carry operations``
A person who sees the good in things has good thoughts. And he who has good thoughts receives pleasure from life... Bediuzzaman

battirunner
New poster
Posts: 14
Joined: Fri Aug 15, 2014 3:48 pm

### Re: 10035 - Primary Arithmetic

what a childish calculation mistake..........
thanks a lot

palashcse2k8
New poster
Posts: 1
Joined: Fri Sep 12, 2014 6:20 pm

### Re: 10035 - Primary Arithmetic

why WA ???
please help...

#include <iostream>

using namespace std;

int main()
{
long long int a,b;
while (cin>>a>>b && a!=0 && b!=0)
{
int r=0,c=0;
while (a||b)
{
r = (a%10 + b%10 + r)/10;
a=a/10;
b=b/10;
c+=r;
}
if(c==0)
cout<<"No carry operation."<<endl;
else if (c==1)
cout<<c<<" carry operation."<<endl;
else
cout<<c<<" carry operations."<<endl;
}
return 0;
}