c language; The sum of the first 5 items of sn=a+aa+aaa+aaaa+aaaaa where A is a number for example: 2+22+222+2222+22222

Source: Internet
Author: User

/* For the sum of the first 5 items of sn = a + AA + AAA + AAAA + AAAAA, where A is a number, for example: 2 + 22 + 222 + 2222 + 22222*/

#include <stdio.h>

int main ()

{

int i = 0;

int a = 0;

int sum = 0;

int num=0;

scanf ("%d", &num);

for (i = 0; i < 5; i++)

{

A = a * ten + num;

sum = sum + A;

}

printf ("%d", sum);

return 0;

}

Output Result:

2

24690


This article is from the "Rock Owl" blog, please be sure to keep this source http://10742111.blog.51cto.com/10732111/1711998

c language; The sum of the first 5 items of sn=a+aa+aaa+aaaa+aaaaa where A is a number for example: 2+22+222+2222+22222

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