The largest data type is string

string

Using strings, you can perform addition, subtraction, multiplication and division of 100 to 150 digits or even more

Except for strings

It is impossible to enter numbers with more than 100 digits in any other data type!

But you are also very particular about input and output

After all, strings are different from other data types

I have a high-precision addition here

The length of these two numbers is limited to 150 digits

Not within 150

But 150 Within a number!

var s1,s2:string;

a,b,c:array[0..1000]of integer;{Unit 0 records the length of the number}

i,len,jin,t:integer;{jin means carry}

begin

readln(s1);

readln(s2 );

a[0]:=length(s1);

for i:=1 to a[0] do a[i]:=ord(s1[a[ 0]+1-i])-ord('0');

b[0]:=length(s2);

for i:=1 to b[0 ] do b[i]:=ord(s2[b[0]+1-i])-ord('0');{Transfer each number in the string to the array, pay attention to the reverse, so Guaranteed alignment}

if a[0]>b[0] then len:=a[0] else len:=b[0];

jin:=0;< /p>

for i:=1 to len do begin

t:=a[i]+b[i]+jin;

c[i]:= t mod 10;

jin:=t div 10;

end;

if jin>0 then begin

inc(len );

c[len]:=jin;

end;

c[0]:=len;

for i :=c[0] downto 1 do write(c[i]);

writeln;

end.

You can also try ordinary addition Program:

var a,b:int64;

begin

readln(a);

readln(b);

writeln(a+b);

end.

int64 must not enter a number consisting of 150 digits!

So string is the largest data type