```
#include <iostream>
using namespace std;
int main()
{
int a,b;
cin>>a,b;
int jntm;
int mtnj=0;
for(int x =a;x<=b;x++)
{
jntm=x;
while(jntm/10!=0)
{
if(jntm%10==2)
{
mtnj+=1;
}
jntm=jntm/10;
}
}
cout <<mtnj;
return 0;
}
```
我改了一下
by Stare @ 2023-06-03 21:24:24
我又修改了一下
```
#include <iostream>
using namespace std;
int main()
{
int a,b;
cin>>a,b;
int jntm;
int mtnj=0;
for(int x =a;x<=b;x++)
{
jntm=x;
while(jntm!=0)
{
if(jntm%10==2)
{
mtnj+=1;
}
jntm=jntm/10;
}
}
cout <<mtnj;
return 0;
}
```
by Stare @ 2023-06-03 21:26:00
1.什么迷惑码风
2.`cin>>a,b;`应改为`cin>>a>>b;`
by __My0217__ @ 2023-06-03 21:30:17
亲测改后AC
~~关注我/se/se~~
by __My0217__ @ 2023-06-03 21:31:06
@[__My0217__](/user/784650) OKOK,谢谢大佬
大佬好人有好报
by Stare @ 2023-06-05 21:35:16
~~xhz~~
by Jayant_xincheng @ 2023-06-06 20:13:27
《cin >> a,b》
by li_bin_xuan @ 2023-08-03 16:41:00