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addingbinary.cpp
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121 lines (114 loc) · 2.39 KB
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#include<bits/stdc++.h>
using namespace std;
int reverse(int n){
int ans = 0;
while(n>0)
{
int lastDigit = n%10;
ans = ans * 10 + lastDigit;
n /= 10;
}
return ans;
}
int addBinary(int a, int b){
int ans = 0;
int prevCarry = 0;
while(a>0 && b>0){
if(a%2==0 && b%2==0){
ans = ans * 10 + prevCarry;
prevCarry = 0;
}else if((a%2==0 && b%2==1)||(a%2==1 && b%2==0)){
if(prevCarry == 1){
ans = ans * 10 + 0;
prevCarry = 1;
}else{
ans = ans * 10 + 1;
prevCarry = 0;
}
}else{
ans = ans *10 + prevCarry;
prevCarry = 1;
}
a/=10;
b/=10;
}
while(a>0){
if(prevCarry == 1){
ans = ans *10+0;
prevCarry = 1;
}else{
ans = ans * 10 + 1;
prevCarry = 0;
}
}
while(a>0){
if(a%2 == 1){
ans = ans * 10 + 0;
prevCarry = 1;
}else{
ans = ans * 10 + 1;
prevCarry = 0;
}
}
while (a>0)
{
/* code */
if(prevCarry == 1){
if(a%2 == 1){
ans = ans * 10 + 0;
prevCarry = 1;
}else{
ans = ans * 10 + 1;
prevCarry = 0;
}
}else{
ans = ans * 10 + (a%2);
}
a/=10;
}
while(b>0){
if(prevCarry == 1){
ans = ans *10+0;
prevCarry = 1;
}else{
ans = ans * 10 + 1;
prevCarry = 0;
}
}
while(b>0){
if(b%2 == 1){
ans = ans * 10 + 0;
prevCarry = 1;
}else{
ans = ans * 10 + 1;
prevCarry = 0;
}
}
while (b>0)
{
/* code */
if(prevCarry == 1){
if(a%2 == 1){
ans = ans * 10 + 0;
prevCarry = 1;
}else{
ans = ans * 10 + 1;
prevCarry = 0;
}
}else{
ans = ans * 10 + (b%2);
}
b/=10;
}
if(prevCarry == 1){
ans = ans * 10 + 1;
}
ans = reverse(ans);
return ans;
}
int main(){
int a,b;
cin>>a>>b;
cout<< addBinary(a,b) <<endl;
return 0;
}