From f0386bfa1b2c6f4af281cdbf89972a39171458cd Mon Sep 17 00:00:00 2001
From: Karan Dhingra <dhingrakaran764@gmail.com>
Date: Tue, 29 Dec 2020 15:30:12 +0530
Subject: [PATCH] Update ex4_21.cpp

We can reduce number of lines by adding

'using namespace std; '
---
 ch04/ex4_21.cpp | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/ch04/ex4_21.cpp b/ch04/ex4_21.cpp
index d848ec843..60e41e6dc 100644
--- a/ch04/ex4_21.cpp
+++ b/ch04/ex4_21.cpp
@@ -1,10 +1,6 @@
 #include <iostream>
 #include <vector>
-
-using std::cout;
-using std::endl;
-using std::vector;
-
+using namespace std;
 int main()
 {
     vector<int> ivec{ 1, 2, 3, 4, 5, 6, 7, 8, 9 };