Getting WA for the code

help
, ,
1

Hi, for the Problem Code:FLOW004
All sample test cases are running successfully when given as custom input but final submission shows Wrong answer.

I’m facing same issue for Problem Code:FCTRL2.

Could anyone please help me here ?

my solution for the Problem Code:[FLOW004]-

#include < iostream>
using namespace std;

int main() {
// your code goes here

int t;   int r;
cin>>t;
while(t--)
{ int sum=0; 
  int n; 
  
  cin>>n; 
  sum+=n%10;
  n=n/10; 
  
  while(n!=0)
  {  r=n%10;
    n=n/10;
      
  }
  
  sum=sum+r;
  
  cout<<sum<<"\n";
    
}
return 0;

}

my solution for Problem Code:FCTRL2

#include <iostream // plz ignore syntax error here
using namespace std;
int fact(int);
int main() {
// your code goes here

int t;  int prod; int n;

// cout<<“before while”;

int facto[100];

cin>>t;  int q=0;
while(t--)
{  //cout<<"inside while";
  

    cin>>n;
    facto[q++]= fact(n);
   // cout<<p<<"\n";
}

for(int i=0;i<q;i++ )
{
    cout<<facto[i]<<endl;
}

// cout<<“outside while”;

return 0;

}

int fact(int k)
{
int prod;
// cout<<“inside fact”;
if(k==1)
{ prod=1;}
else {
prod=1;
while(k>1)
{ prod*=k;
k–;

    }
    
   // return prod;
}

return prod;

}

2

For Problem FLOW004, consider this test case.
Input

3
1
2
3

Expected Output

2
4
6

Your Output

1
2
3
3

And for problem FCTRL2, you might want to look at this.

4

your code doesn’t work for single digit inputs.
Your corrected code: Link

sum+=n%10;
n=n/10;

Consider the second line, it changes original number to 0 for single digit inputs.
hope you got it.

5

hi,
this is my updated code but still getting WA. Could you see problem in this version ? Thanks

#include
using namespace std;
int summ(int);

int main() {
// your code goes here

int t;   int r; int ans[1000]; int p=0;
cin>>t;
while(t--)
{ int sum=0; 
  int n; 
  
  cin>>n; 
  ans[p]=summ(n);
  p++;
  
    
}

for(int i=0; i<p;i++)
{
    cout<<ans[i]<<"\n";
}
return 0;

}

int summ(int a)
{
int rsum=a%10;
a=a/10;
int r=0;
while(a!=0)
{ r=a%10;
a=a/10;

}

rsum+=r;

return rsum;

}

6

Hi,
problem statement here says to print sum of 1st and last digit so for the case of single digits answer should be same as number entered.

Could you plz explain how come output for 1 2 3 is 2 4 6 but not 1 2 3.

problem link: FLOW004 Problem - CodeChef

7

It’s the conclusion I drew from other Accepted submissions

8

I have already updated the earlier version of your code to give AC.

9

For single digits numbers, that number itself accounts the 1st and last digit.
so, for 1, the output shall be 1+1=2 , not 1
Similarly for the other numbers.

10

ohh I get it now, I wasn’t taking single digit twice to make up for both the first and last digit.

Thank you @manvi_03

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