@[Zzp5201314](/user/1200891)
```cpp
#include<stdio.h>
int main()
{
int x, n,j = 0;
scanf("%d%d", &n, &x);
for (int i = 1;i <= n;i++)
{
int y = i;
while (y)
{
if (y%10==x)
{
j++;
}
y /= 10;
}
}
printf("%d",j);
return 0;
}
```
by wwqwq @ 2023-11-26 21:55:59
1.j要赋初值
2.n和x输入反了 @[Zzp5201314](/user/1200891)
by wwqwq @ 2023-11-26 21:56:34
@[wuweiqi](/user/669919) okok知道了
by Zzp5201314 @ 2023-11-26 22:06:25