while(lenc>0&&...)
by ⚡LZSY01_XZY⚡ @ 2019-01-27 13:06:53
@[pdc萨伊](/space/show?uid=150391) 输出7是蜂鸣
by ⚡GG⚡ @ 2019-01-27 13:07:49
@[垃圾一个](/space/show?uid=85933) 乱码问题已解决
by 赫敏·东方延绪 @ 2019-01-27 13:10:08
```cpp
#include<bits/stdc++.h>
#define M 10001
using namespace std;
char a1[M],b1[M];
int a[M],b[M],c[M];
int lena,lenb,lenc,i;
int main()
{
scanf("%s",a1); lena=strlen(a1);
scanf("%s",b1); lenb=strlen(b1);
for(i=0;i<lena;i++) a[lena-i]=a1[i]-'0';
for(i=0;i<lenb;i++) b[lenb-i]=b1[i]-'0';
if(lena==lenb&&a1[lena-1]<b1[lenb-1]||lena<lenb)
{
cout<<'-';
for(i=1;i<=lenb;i++)
{
a[i]=a[i]^b[i];
b[i]=a[i]^b[i];
a[i]=a[i]^b[i];
}
lena=lena^lenb;
lenb=lena^lenb;
lena=lena^lenb;
}
lenc=lena;
for(i=1;i<=lena;i++)
{
if(a[i]<b[i])
{
a[i]+=10;
a[i+1]--;
}
c[i]=a[i]-b[i];
}
while(c[lenc]==0&&lenc>0)lenc--;
for(i=lenc;i>0;i--)printf("%d",c[i]);
if(lenc==0)printf("0");
printf("\n");
}
```
by ⚡LZSY01_XZY⚡ @ 2019-01-27 13:12:20
@[LZSY01_XZY](/space/show?uid=141348) 改了一下，反而多错了一个点，第6个点也错了
这就奇怪了
by 赫敏·东方延绪 @ 2019-01-27 13:13:27
```
//高精度计算-大整数减法
#include<bits/stdc++.h>
#define M 10001
using namespace std;
char a1[M],b1[M];
int a[M],b[M],c[M];
int lena,lenb,lenc,i,x=0,temp;
int main()
{
scanf("%s",a1); lena=strlen(a1);
scanf("%s",b1); lenb=strlen(b1);
if(lena==lenb&&a1[lena-1]<b1[lenb-1]||lena<lenb)
{
cout<<'-';
for(i=0;i<lenb;i++)
{
temp=a1[i];
a1[i]=b1[i];
b1[i]=temp;
}
temp=lena;
lena=lenb;
lenb=temp;
}
for(i=0;i<lena;i++) a[lena-i]=a1[i]-'0';
for(i=0;i<lenb;i++) b[lenb-i]=b1[i]-'0';
lenc=1; x=0;
for(lenc=1;lenc<=lena;lenc++)
{
if(a[lenc]<b[lenc])
{
a[lenc]+=10;
a[lenc+1]--;
}
c[lenc]=a[lenc]-b[lenc];
}
while(c[lenc]==0&&lenc>0)
lenc--;
for(i=lenc;i>0;i--)
cout<<c[i];
cout<<endl;
}
```
by 赫敏·东方延绪 @ 2019-01-27 13:14:31
```cpp
if(lenc==0)printf("0");
```
by ⚡LZSY01_XZY⚡ @ 2019-01-27 13:16:11
@[LZSY01_XZY](/space/show?uid=141348) ？？？
wrong answer On line 1 column 1, read 1, expected 5.
wrong answer Too short on line 1.
wrong answer On line 1 column 1, read 1, expected 4.
测试点2：第1行第1列的回答错误，读取1，应为5。
测试点6：错误答案在第1行太短。
测试点10：第1行第1列的回答错误，读取1，应为4。
by 赫敏·东方延绪 @ 2019-01-27 13:47:59
https://www.luogu.org/discuss/show/96531?page=2
by 赫敏·东方延绪 @ 2019-01-27 13:49:31
发错了
https://www.luogu.org/recordnew/show/15771767
by 赫敏·东方延绪 @ 2019-01-27 13:50:14