__int 128,不能使用普通的cin,cout,输入,输出,需要自己写一个输入输出的模板
#include <bits/stdc++.h>
using namespace std;
void scan(__int128 &x)//输入
{
x = 0;
int f = 1;
char ch;
if((ch = getchar()) == '-') f = -f;
else x = x*10 + ch-'0';
while((ch = getchar()) >= '0' && ch <= '9')
x = x*10 + ch-'0';
x *= f;
}
void _print(__int128 x)//输出正数
{
if(x > 9) _print(x/10);
putchar(x%10 + '0');
}
void print(__int128 x)//输出输出负数
{
if(x < 0)
{
x = -x;
putchar('-');
}
_print(x);
}
int main()
{
__int128 a, b;
scan(a); scan(b);
print(a + b);
return 0;
}
代码:
#include <bits/stdc++.h>
using namespace std;
void scan(__int128 &x)//输入
{
x = 0;
int f = 1;
char ch;
if((ch = getchar()) == '-') f = -f;
else x = x*10 + ch-'0';
while((ch = getchar()) >= '0' && ch <= '9')
x = x*10 + ch-'0';
x *= f;
}
void _print(__int128 x)
{
if(x > 9) _print(x/10);
putchar(x%10 + '0');
}
void print(__int128 x)//输出
{
if(x < 0)
{
x = -x;
putchar('-');
}
_print(x);
}
int main()
{
__int128 a, b,c;
scan(a); scan(b);scan(c);
print(a + b+c);
return 0;
}