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binary_addition.cpp
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#include<bits/stdc++.h>
using namespace std;
int reverse(int n){
int ans=0,d;
while(n>0){
d=n%10;
ans=ans*10 + d;
n=n/10;
}
return ans;
}
int binary_addition(int a,int b){
int add=0,carry=0;
while(a>0 && b>0){
if(a%2==1 && b%2==1){
add=add*10 + carry;
carry=1;
}
else if((a%2==1 && b%2==0) || (a%2==0 && b%2==1)){
if(carry==1){
add=add*10 + 0;
carry=1;
}
else{
add=add*10 + 1;
carry=0;
}
}
else{
add = add*10 + carry;
carry=0;
}
a=a/10;
b=b/10;
}
while(a>0){
if(a%2==1){
if(carry==1){
carry=1;
add=add*10+0;
}
else{
carry=0;
add=add*10 + 1;
}
}
else{
add=add*10 +carry;
carry=0;
}
a=a/10;
}
while(b>0){
if(b%2==1){
if(carry==1){
carry=1;
add=add*10+0;
}
else{
carry=0;
add=add*10 + 1;
}
}
else{
add=add*10 +carry;
carry=0;
}
b=b/10;
}
if(carry==1){
add=add*10 +1;
}
add=reverse(add);
return add;
}
int main(){
int a,b;
cin>>a>>b;
int add=binary_addition(a,b);
cout<<add;
}