Playing with bits

#1

I have written a code and it is working fine with all my inputs but still giving a wrong ans . Please look at my code and tell what is the error.

#2

Please provide your code on Coding Blocks IDE and also add some comments.

#3

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

int main() {

int q,a[100],b[100];
cin >> q;
int j=0;
cout<<endl;
for(int i=0;i < q;i++){
    cin >> a[j]>>b[j];
    cout<<endl;
	j++;

}

for(int k=0; k <2;k++){
int no = 0;
for(int j=a[k]; j <= b[k]; j++){
    no = no +__builtin_popcount(j);
}
cout<<no<<endl;
}

}

#4

You have taken the input wrong. you can directly cin >> a[i] >> b[i]. I am unable to understand why have you used j to take input. and also you have added two extra cout << endl; statements. They can be the reason for WA.

#5

Also the loop for k must be till q. As you have to answer q queries and not 2.

#6

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