From aa2781de68987d430f29cba7d20d64a22cbf84c6 Mon Sep 17 00:00:00 2001
From: jiyu <jiyu3927@snu.ac.kr>
Date: Fri, 17 Apr 2020 14:53:36 +0900
Subject: [PATCH 1/2] modify and add

---
 homework4/Source.cpp | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/homework4/Source.cpp b/homework4/Source.cpp
index ab69b66..39aacf9 100644
--- a/homework4/Source.cpp
+++ b/homework4/Source.cpp
@@ -25,12 +25,24 @@ int main()
 	int* output = new int[arrsize];
 	cout << "Array output: ";
 
-	/***********************************
-	Implement the code here!
-	************************************/
+	int howmany = 0;
+
+	for (int i = 0; i < arrsize; i++) {
+		for (int j = 0; j < arrsize; j++) {
+			if (arr[j] < arr[i]) {
+				howmany += 1;
+			}
+		}
+		output[i] = howmany;
+		howmany = 0;
+	}
 
 	for (int i = 0; i < arrsize; i++) {
 		cout << output[i] << " ";
 	}
+
+	delete[] arr;
+	delete[] output;
+
 	return 0;
-}
\ No newline at end of file
+}

From 9eadd505a780b1d6fa273de211004151c9e21525 Mon Sep 17 00:00:00 2001
From: jiyu <jiyu3927@snu.ac.kr>
Date: Fri, 17 Apr 2020 14:57:55 +0900
Subject: [PATCH 2/2] add answer

---
 homework4.txt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/homework4.txt b/homework4.txt
index d8160f0..c31f9bd 100644
--- a/homework4.txt
+++ b/homework4.txt
@@ -1,2 +1,6 @@
 1. What is .gitignore? You can write the answer either in Korean or English.
-2. Why do Github users need an SSH key pair? (Users can use either SSH key pair or github account info.) Please write down a brief explanation of SSH key.
\ No newline at end of file
+2. Why do Github users need an SSH key pair? (Users can use either SSH key pair or github account info.) Please write down a brief explanation of SSH key.
+
+1. .gitignore란, 이 파일 안의 내용들을 git의 관리 대상에서 제외할 때 쓰는 파일이다.
+
+2.SSH key 는 github계정에 특정 컴퓨터를 등록하게 하는 고유 키로, 매번 컴퓨터에서 아이디와 비밀번호를 입력하지 않아도 되는 이점이 있어 사용한다.