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177 lines (160 loc) · 4.3 KB
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//ANSWER IS 5537376230
#include<iostream>
using namespace std;
int alphabet_into_digits(char s)
{
int i;
if(s=='0')
i=0;
else if(s=='1')
i=1;
else if(s=='2')
i=2;
else if(s=='3')
i=3;
else if(s=='4')
i=4;
else if(s=='5')
i=5;
else if(s=='6')
i=6;
else if(s=='7')
i=7;
else if(s=='8')
i=8;
else
i=9;
return i;
}
string digits_into_alpha(int a)
{
string ch;
if(a==1)
ch="1";
else if(a==2)
ch="2";
else if(a==3)
ch="3";
else if(a==4)
ch="4";
else if(a==5)
ch="5";
else if(a==6)
ch="6";
else if(a==7)
ch="7";
else if(a==8)
ch="8";
else if(a==9)
ch="9";
else if(a==0)
ch="0";
return ch;
}
class bignum
{
string s1,s2,sans; //TWO STRINGS SUM=s1+s2;
int a1[10000],a2[10000],aans[10000];
int count_digits_s1,count_digits_s2,count_digits_ans;
public:
bignum(string str1,string str2) //CONSTRUCTOR
{
s1=str1;
s2=str2;
sans="";
for(int i=0;i<10000;i++)
{
a1[i]=0;
a2[i]=0;
aans[i]=0;
}
count_digits_s1=0;
count_digits_s2=0;
str_into_array();
count_digits_ans=0;
}
void str_into_array() //s1 INTO a1 AND s2 INTO a2
{
for(int i=0;i<s1.length();i++)
{
a1[s1.length()-i-1]=alphabet_into_digits(s1[i]);
count_digits_s1++;
}
for(int j=0;j<s2.length();j++)
{
a2[s2.length()-j-1]=alphabet_into_digits(s2[j]);
count_digits_s2++;
}
}
void array_into_str() //aans INTO sans;
{
for(int i=count_digits_ans-1;i>=0;i--)
sans+=digits_into_alpha(aans[i]);
}
void add() //ADDITION
{
int i=count_digits_s1-1,j=count_digits_s2-1;
count_digits_ans=count_digits_s1;
if(count_digits_s1>=count_digits_s2)
{
for(;i>=0;i--)
aans[i]=a1[i];
i=0;
int a=0;
while(i<count_digits_ans)
{
if(i<count_digits_s2)
a=aans[i]+a2[i]+a;
else
a=aans[i]+a;
aans[i]=a%10;
a=a/10;
if(count_digits_ans==i+1&&a>0)
count_digits_ans++;
i++;
}
}
else
{
for(;j>=0;j--)
aans[j]=a2[j];
count_digits_ans=count_digits_s2;
j=0;
int a=0;
while(j<count_digits_ans)
{
if(j<count_digits_s1)
a=aans[j]+a1[j]+a;
else
a=aans[j]+a;
aans[j]=a%10;
a=a/10;
if(j+1==count_digits_ans&&a>0)
count_digits_ans++;
j++;
}
}
array_into_str();
}
string return_sans()
{
return sans;
}
};
int main()
{
int i=0;
string a,b,c;
cin>>a;
while(i<99)
{
cin>>b;
bignum sum(a,b);
sum.add();
c=sum.return_sans();
a=c;
i++;
//cout<<a<<"\n";
}
cout<<a;
}