Playing with Bits

[namanitsofficial (Naman Gupta)]

#include<bits/stdc++.h>
using namespace std;

int countSetBits(int n)
{
// base case
if (n == 0)
return 0;
else
return 1 + countSetBits(n & (n - 1));
}
int main() {
int t;
cin >> t;
while(t–)
{
int a,b,i,c=0;
cin >> a,b;
for(i=a;i<=b;i++)
{
c+=countSetBits(i);
}
cout<<c<<endl;
}
return 0;
}

what is wrong with the code?

[Kartikkhariwal1 (Kartik Khariwal)]

Hey @namanitsofficial
Please share your code in some online ide

[namanitsofficial (Naman Gupta)]

Coding Blocks IDE

[Kartikkhariwal1 (Kartik Khariwal)]

@namanitsofficial

cin >> a,b;

error
this should be
cin>>a >>b;

And I am asking for ur code in IDE that means ,it should have proper indentation.,u directly copy pasted from here

[namanitsofficial (Naman Gupta)]

@namanitsofficial

#include<bits/stdc++.h>
using namespace std;

int countSetBits(int n)
{
// base case
if (n == 0)
return 0;
else
return 1 + countSetBits(n & (n - 1));
}
int main() {
int t;
cin >> t;
while(t–)
{
int a,b,i,c=0;
cin >> a,b;
for(i=a;i<=b;i++)
{
c+=countSetBits(i);
}
cout<<c<<endl;
}
return 0;
}

And I am asking for ur code in IDE that means ,it should have proper indentation.,u directly copy pasted from here

• Ok Sir I will take care of it the next time

[KartikKhariwal]

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