Question

编程: 求s=1+11+111+1111+...+1111111111的和。 程序代码:

vb

Answer 1

回答即可得2分经验值，回答被选为满意回#include <stdio.h>
#define N 10 /*最后一项中1的个数*/
int main()
{
int i;
long term, sum;

term = 1;
sum = 0;
for (i = 1; i <= N; ++i)
{
sum += term;
term = term*10+1;
}
printf("%ld\n", sum);

return 0;
}

如果最后一项中1的个数超过10个，就不能用这种方法了。

大过年的就帮你写了吧。另外VB不是语言，而是编程环境。BASIC才是语言。
BASIC代码如下：

Public Function Add(N As Integer) As Long
term As Long
sum As Long

term = 1
sum = 0
For i = 1 To N
sum = sum + term
term = term*10+1
Next i
Add = sum

End Function答可同步增加经验值和财富值

Answer 2

#include <stdio.h>
#define N 10 /*最后一项中1的个数*/
int main()
{
int i;
long term, sum;

term = 1;
sum = 0;
for (i = 1; i <= N; ++i)
{
sum += term;
term = term*10+1;
}
printf("%ld\n", sum);

return 0;
}

如果最后一项中1的个数超过10个，就不能用这种方法了。

大过年的就帮你写了吧。另外VB不是语言，而是编程环境。BASIC才是语言。
BASIC代码如下：

Public Function Add(N As Integer) As Long
term As Long
sum As Long

term = 1
sum = 0
For i = 1 To N
sum = sum + term
term = term*10+1
Next i
Add = sum

End Function

Answer 3

什么语言?