From 022e2f02e7b01c4ac5e34be2fc38a3255f83b509 Mon Sep 17 00:00:00 2001
From: Mann Mehta <44433995+mann2108@users.noreply.github.com>
Date: Sun, 29 Mar 2020 17:36:33 +0530
Subject: [PATCH] modified by removing namespace using-directive

---
 math/eulers_totient_function.cpp | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/math/eulers_totient_function.cpp b/math/eulers_totient_function.cpp
index 63058063c..f05c7dab4 100644
--- a/math/eulers_totient_function.cpp
+++ b/math/eulers_totient_function.cpp
@@ -1,6 +1,5 @@
-#include<bits/stdc++.h>
-
-using namespace std;
+/// C++ Program to find Euler Totient Function
+#include<iostream>
 
 /**
 
@@ -22,6 +21,7 @@ Hence Implementation in O(sqrt(n)).
 
 */
 
+/// Function to caculate euler totient function
 int phiFunction(int n) {
     int result = n;
     for (ll i=2; i*i <= n; i++) {
@@ -38,6 +38,6 @@ int phiFunction(int n) {
 
 int main() {
     int n;
-    cin >> n;
-    cout << phiFunction(n) << endl;
+    std::cin >> n;
+    std::cout << phiFunction(n) << endl;
 }