Why is my code wrong challenges fundamentals 1 problem

#1

#include
using namespace std;

int main(){

int n;
cin>>n;

int ans = 0;
int binary = 1;

while(n != 0){
    int ld = n%10;
    ans = ans + ld*binary;
    n = n/10;
    binary = binary * 2;
}
cout<<ans;
return 0;

}

#2

u are not taking the input only properly… u have just taken input n but not he binary numbers… refer to my code https://ide.codingblocks.com/s/594722

#3

Sir, I have understood my error in the code

#4

shall i mark the doubt as resolved then???

#5

yaa sir you can mark it resolved

#6

Sir, but in your answer you are using arrays which haven’t thought yet as challenges fundamentals section comes after arrays.

#7

ok. so u can refer this https://ide.codingblocks.com/s/594722
I have removed array part from this and done it directly…

#8

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