diff --git "a/yeongeun/[week2] \352\267\270\353\246\254\353\224\224/boj_13305.py" "b/yeongeun/[week2] \352\267\270\353\246\254\353\224\224/boj_13305.py"
new file mode 100644
index 0000000..2dcd4fb
--- /dev/null
+++ "b/yeongeun/[week2] \352\267\270\353\246\254\353\224\224/boj_13305.py"	
@@ -0,0 +1,16 @@
+import sys
+input = sys.stdin.readline
+
+N = int(input())
+distance = list(map(int, input().split()))
+price = list(map(int, input().split()))
+
+total = 0
+min_price = price[0]
+
+for i in range(N - 1):
+    if price[i] < min_price:
+        min_price = price[i]
+    total += min_price * distance[i]
+
+print(total)
diff --git "a/yeongeun/[week2] \352\267\270\353\246\254\353\224\224/pgs_12982.py" "b/yeongeun/[week2] \352\267\270\353\246\254\353\224\224/pgs_12982.py"
new file mode 100644
index 0000000..756a6c8
--- /dev/null
+++ "b/yeongeun/[week2] \352\267\270\353\246\254\353\224\224/pgs_12982.py"	
@@ -0,0 +1,13 @@
+# 예산
+
+def solution(d, budget):
+    d.sort()
+    total = 0
+    count = 0
+    for cost in d:
+        if total + cost <= budget:
+            total += cost
+            count += 1
+        else:
+            break
+    return count
\ No newline at end of file
diff --git "a/yeongeun/[week2] \352\267\270\353\246\254\353\224\224/pgs_77885.py" "b/yeongeun/[week2] \352\267\270\353\246\254\353\224\224/pgs_77885.py"
new file mode 100644
index 0000000..a4a3d83
--- /dev/null
+++ "b/yeongeun/[week2] \352\267\270\353\246\254\353\224\224/pgs_77885.py"	
@@ -0,0 +1,15 @@
+# 2개 이하로 다른 비트
+
+def solution(numbers):
+    answer = []
+    for x in numbers:
+        if x % 2 == 0:
+            answer.append(x + 1)
+        else:
+            bits = list('0' + bin(x)[2:])
+            idx = ''.join(bits).rfind('0')
+            bits[idx] = '1'
+            bits[idx + 1] = '0'
+            min_num = int(''.join(bits), 2)
+            answer.append(min_num)
+    return answer
\ No newline at end of file