정용석 · @JeongYongseok · Kim Wansu · 정용석 · Kim Wansu · 정용석
--- a/Cstandard.c 0 → 100644
+++ b/Cstandard.c 0 → 100644
+    while(str[count] != '\0'){
+        count++;
+    }
+
+    return count;
+}
+
+char *my_strcpy(char *dest, const char *src){
+    if(dest == NULL || src == NULL){
+        return NULL;
+    }
+
+    int i = 0;
+
+    while(src[i] != '\0'){
+        dest[i] = src[i];
--- a/Cstandard.c 0 → 100644
+++ b/Cstandard.c 0 → 100644
+        return NULL;
+    }
+
+    int i = 0;
+
+    while(src[i] != '\0'){
+        dest[i] = src[i];
+        i++;
+    }
+    dest[i] = '\0';
+    return dest;
+}
+
+int my_strcmp(const char *str1, const char *str2){
+    if(str1 == NULL || str2 == NULL){
+        return -1;
--- a/base64.cpp 0 → 100644
+++ b/base64.cpp 0 → 100644
+// base64 인코딩, 디코딩 함수
+#include <iostream>
+#include <vector>
+#include <string>
+
+using namespace std;