From 349d9b1ddacc2ea87662f8146c4a468139ecbdbe Mon Sep 17 00:00:00 2001 From: AJANRAJ <35831352+AJANRAJ@users.noreply.github.com> Date: Thu, 4 Oct 2018 17:06:40 +0530 Subject: [PATCH] Create lucky.cpp --- lucky.cpp | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 lucky.cpp diff --git a/lucky.cpp b/lucky.cpp new file mode 100644 index 00000000..953fa396 --- /dev/null +++ b/lucky.cpp @@ -0,0 +1,33 @@ +#include +#define bool int + +/* Returns 1 if n is a lucky no. ohterwise returns 0*/ +bool isLucky(int n) +{ + static int counter = 2; + + /*variable next_position is just for readability of + the program we can remove it and use n only */ + int next_position = n; + if(counter > n) + return 1; + if(n%counter == 0) + return 0; + + /*calculate next position of input no*/ + next_position -= next_position/counter; + + counter++; + return isLucky(next_position); +} + +/*Driver function to test above function*/ +int main() +{ + int x = 5; + if( isLucky(x) ) + printf("%d is a lucky no.", x); + else + printf("%d is not a lucky no.", x); + getchar(); +} pFad - Phonifier reborn

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