10035 - Primary Arithmetic

[muktadir.rhmn]

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]

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]

thnx a lot . got AC

[zishan]

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

[fakeillution]

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]

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.

[ehsanulbigboss]

OK!!!

[lighted]

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.

[axelblaze]

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

Code: Select all

Removed after AC

[lighted]

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

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1 carry operations.

Sample output

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1 carry operation.

[axelblaze]

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

[battirunner]

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]

Input

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999 1

Output

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3 carry operations

[battirunner]

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

[palashcse2k8]

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;
}