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Author: Albert-learner

LEVEL2/Day3/CountOfAliquotAndSum.py

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+# 45. 약수의 개수와 덧셈
+
+def solution(left, right):
+    answer = 0
+
+    for cost in range(left, right + 1):
+        aliquot_cnt = 0
+        for aliquot in range(1, cost + 1):
+            if cost % aliquot == 0:
+                aliquot_cnt += 1
+
+        if aliquot_cnt % 2 == 0:
+            answer += cost
+        else:
+            answer -= cost
+    return answer
+
+left_1 = 13
+left_2 = 24
+
+right_1 = 17
+right_2 = 27
+
+print(solution(left_1, right_1))
+print(solution(left_2, right_2))
+
+import math
+def solution_other(left, right):
+    answer = 0
+
+    for cost in range(left, right + 1):
+        sqrt = math.sqrt(cost)
+        if int(sqrt) == sqrt:
+            answer -= cost
+        else:
+            answer += cost
+
+    return answer
+
+print(solution_other(left_1, right_1))
+print(solution_other(left_2, right_2))
+
+def solution_best(left, right):
+    answer = 0
+
+    for cst in range(left, right + 1):
+        if int(cst ** 0.5) == cst ** 0.5:
+            answer -= cst
+        else:
+            answer += cst
+
+    return answer
+
+print(solution_best(left_1, right_1))
+print(solution_best(left_2, right_2))

LEVEL2/Day3/DartGame.py

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+# 39. 다트 게임
+
+# 내 풀이 X ... 뭔가 복잡해
+def solution(dartResult):
+    answer = 0
+
+    bonus = {'S' : 1, 'D' : 2, 'T' : 3}
+    option = {'*' : 2, '#' : -1}
+
+    Third_period = [0, 0, 0]
+    flag = -1
+
+    for idx, dart in enumerate(dartResult):
+        if dart.isdigit():
+            flag += 1
+            if dart == '0':
+                continue
+            elif dartResult[idx + 1].isdigit():  # 10 이상일 때
+                Third_period[flag] = int(dart) * 10
+                flag -= 1
+            else:
+                Third_period[flag] = int(dart)
+        elif dart in 'SDT':  # SDT
+            Third_period[flag] **= bonus[dart]
+        else:
+            if dart == '*':
+                Third_period[flag - 1] *= 2
+
+            Third_period[flag] *= option[dart]
+
+    answer = sum(Third_period)
+    return answer
+
+dartResult_1 = '1S2D*3T'
+dartResult_2 = '1D2S#10S'
+dartResult_3 = '1D2S0T'
+dartResult_4 = '1S*2T*3S'
+dartResult_5 = '1D#2S*3S'
+dartResult_6 = '1T2D3D#'
+dartResult_7 = '1D2S3T*'
+
+print(solution(dartResult_1))
+print(solution(dartResult_2))
+print(solution(dartResult_3))
+print(solution(dartResult_4))
+print(solution(dartResult_5))
+print(solution(dartResult_6))
+print(solution(dartResult_7))
+
+import re
+
+def solution_best(dartResult):
+    answer = 0
+
+    bonus = {'S' : 1, 'D' : 2, 'T' : 3}
+    option = {'' : 1, '*' : 2, '#' : -1}
+
+    p = re.compile('(\d+)([SDT])([*#]?)')
+    dart = p.findall(dartResult)
+    for i in range(len(dart)):
+        if dart[i][2] == '*' and i > 0:
+            dart[i - 1] *= 2
+        dart[i] = int(dart[i][0]) ** bonus[dart[i][1]] * option[dart[i][2]]
+
+    answer = sum(dart)
+    return answer
+
+print(solution_best(dartResult_1))
+print(solution_best(dartResult_2))
+print(solution_best(dartResult_3))
+print(solution_best(dartResult_4))
+print(solution_best(dartResult_5))
+print(solution_best(dartResult_6))
+print(solution_best(dartResult_7))