Doing some 2015 exos for fun

2015/day 1/P1/flor.py

@@ -0,0 +1,9 @@
+instructions = open("input.txt").read()
+flor = 0
+for i in list(instructions):
+    if i == "(":
+        flor+=1
+    elif i == ")":
+        flor-=1
+print(flor)
+

2015/day 1/P2/flor.py

@@ -0,0 +1,10 @@
+instructions = open("input.txt").read()
+flor = 0
+for c, i in enumerate(list(instructions)):
+    if i == "(":
+        flor+=1
+    elif i == ")":
+        flor-=1
+    if flor == -1:
+        break
+print(c+1)

2015/day 2/P1/paper.py

@@ -0,0 +1,9 @@
+boxs = open("input.txt").read().split("\n")[:-1]
+paper = 0
+for i in list(boxs):
+    i = i.split("x")
+    dim1 = (int(i[0])*int(i[1]))
+    dim2 = (int(i[1])*int(i[2]))
+    dim3 = (int(i[2])*int(i[0]))
+    paper+=2*dim1+2*dim2+2*dim3+min([dim1, dim2, dim3])
+print(paper)

2015/day 2/P2/ribbon.py

@@ -0,0 +1,6 @@
+boxs = open("input.txt").read().split("\n")[:-1]
+ribbon = 0
+for i in boxs:
+    i = sorted([int(j) for j in i.split("x")])
+    ribbon+=(i[0]*2+i[1]*2)+(i[0]*i[1]*i[2])
+print(ribbon)

2015/day 3/P1/delivering.py

@@ -0,0 +1,17 @@
+instructions = open("input.txt").read()
+x = 0
+y = 0
+house = ["0;0"]
+delivery = 0
+for i in list(instructions):
+    if i == "^":
+        y+=1
+    elif i == "v":
+        y-=1
+    elif i == ">":
+        x+=1
+    elif i == "<":
+        x-=1
+    if f"{x};{y}" not in house:
+        house.append(f"{x};{y}")
+print(len(house))

2015/day 3/P2/delivering.py

@@ -0,0 +1,18 @@
+instructions = open("input.txt").read()
+cords={"Santa": [0,0], "Robot Santa": [0,0]}
+house = ["0;0"]
+delivery = 0
+turn = "Santa"
+for i in list(instructions):
+    if i == "^":
+        cords[turn][1]+=1
+    elif i == "v":
+        cords[turn][1]-=1
+    elif i == ">":
+        cords[turn][0]+=1
+    elif i == "<":
+        cords[turn][0]-=1
+    if f"{cords[turn][0]};{cords[turn][1]}" not in house:
+        house.append(f"{cords[turn][0]};{cords[turn][1]}")
+    turn = "Santa" if turn == "Robot Santa" else "Robot Santa"
+print(len(house))

2015/day 4/P1/AdventCoins.py

@@ -0,0 +1,6 @@
+import hashlib
+key = open("input.txt").read().replace("\n", "")
+num=0
+while hashlib.md5(f"{key}{num}".encode()).hexdigest()[:5] != "00000":
+    num+=1
+print(num)

2015/day 4/P1/input.txt

@@ -0,0 +1 @@
+yzbqklnj

2015/day 4/P2/AdventCoins.py

@@ -0,0 +1,6 @@
+import hashlib
+key = open("input.txt").read().replace("\n", "")
+num=0
+while hashlib.md5(f"{key}{num}".encode()).hexdigest()[:6] != "000000":
+    num+=1
+print(num)

2015/day 4/P2/input.txt

@@ -0,0 +1 @@
+yzbqklnj

2015/day 5/P1/string.py

@@ -0,0 +1,11 @@
+strings = open("input.txt").read().split("\n")[:-1]
+nice = 0
+for i in strings:
+    if i.count("a")+i.count("e")+i.count("i")+i.count("o")+i.count("u") >= 3 \
+            and not ("ab" in i or "cd" in i or "pq" in i or "xy" in i):
+                for j in list(i):
+                    if f"{j}{j}" in i:
+                        nice+=1
+                        break
+print(nice)
+

2015/day 5/P2/string.py

@@ -0,0 +1,15 @@
+strings = open("input.txt").read().split("\n")[:-1]
+nice = 0
+for i in strings:
+    double = False
+    for j in range(len(i)-1):
+        if i.count(f"{i[j]}{i[j+1]}") >= 2 and f"{i[j]}{i[j]}{i[j]}" not in i:
+            double = True
+            break
+    for j in range(len(i)):
+        f2 = i.find(i[j], j+1)
+        if f2-j == 2 and double:
+            nice+=1
+            break
+print(nice)
+