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A1129 | [COCI-2007_2008-contest5]#5 PASCAL

来源COCI
时间限制1s
内存限制128MB
通过 / 提交0/0

题目描述

Little Frane is already in tenth grade, but is still struggling with Pascal in computer class. For homework, his teacher wrote the following program into his notebook, and he needs to determine the output, given the integer N.
readln(N);
counter := 0;
for i := N-1 downto 1 do begin counter := counter + 1;
if N mod i = 0 then break;
end;
writeln(counter);
Write a program which solves Frane's problem.

输入格式

The first line of input contains the integer N (1 ≤ N ≤ 10^9).

输出格式

Output the result on a single line.

输入输出样例

输入 #1
1
输出 #1
0
输入 #2
10
输出 #2
5
输入 #3
27
输出 #3
18
C++ 编辑器
输入
输出