Multiplication of two Binary Numbers
Problem-Given two nos in Binary form like 1101 .Our task is to multiply two binary nos give output in form of decimal Notation.
Approach-Just convert the binary nos into decimal form and multiply using standard norms.
//Code starts here
#include<bits/stdc++.h>
using namespace std;
int main() {
int t;
cin>>t;
while(t>0)
{ string s1,s2;
cin>>s1;
cin>>s2;
int m=0;
int n=0;
for(int i=0;s1[i]!='\0';i++)
{
n=n+1;
}
for(int i=0;s2[i]!='\0';i++)
{
m=m+1;
}
int k=0;
//char x;
int q;
for(int i=n-1;i>=0;i--)
{
q=s1[i]-48;
k=k+pow(2,n-1-(i))*q;
}
int l=0;
for(int i=m-1;i>=0;i--)
{
q=s2[i]-48;
l=l+pow(2,m-1-(i))*q;
}
cout<<l*k<<endl;
t=t-1;
}
return 0;
}Input:
2
1100 01
01 01
Output:
12
1
2
1100 01
01 01
Output:
12
1
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