Ultraviolet A 11879-multiple of 17

Question: calculate whether a number is a multiple of 17.

Description: String, large number. A simple question, which can be determined directly.

Set n = 10a + D; (0 ≤ d ≤ 9) then

A-5d = 51a-5N. If n is divisible by 17, this number must also be divisible by 17.

Note: The question gives a conclusion, which is not required. You can directly % 17 to determine the remainder.

# Include <iostream> # include <cstdlib> # include <cstring> # include <cstdio> using namespace STD; char STR [104]; int Val [104]; int main () {While (~ Scanf ("% s", STR) {If (strlen (STR) = 1 & STR [0] = '0') break; int Len = strlen (STR); For (INT I = 0; I <Len; ++ I) Val [I] = STR [I]-'0 '; val [Len] = 0; For (INT I = 0; I <Len; ++ I) Val [I + 1] + = Val [I] % 17*10; if (Val [Len]) printf ("0 \ n"); else printf ("1 \ n") ;}return 0 ;}
 

Ultraviolet A 11879-multiple of 17