day 2024.08

2024/day08.py

@@ -13,9 +13,56 @@ aocYear = identifyYear(sys.argv[0])
 
 path = getPath2Data(aocDay,aocYear)
 filename = getFilename2Data(aocDay)
+
+def identifyAntennes(data):
+    posAntennes={}
+    maxY = len(data)
+    maxX = len(data[0])
+    for posY in range(maxY):
+        for posX in range(maxX):
+            dataValue = data[posY][posX]
+            if dataValue != '.':
+                try: 
+                    posAntennes[dataValue].append((posX,posY))                    
+                except:
+                    posAntennes[dataValue] = [(posX,posY)]
+    return maxY,maxX,posAntennes
+
+def isinGrid(pos,maxPos):
+    return 0 <= pos[0] < maxPos[0] and 0 <= pos[1] < maxPos[1]
+
+def calcAntiNodes(posAntA, posAntB,maxPos):
+    AX = posAntA[0] 
+    BX = posAntB[0]
+    AY = posAntA[1]
+    BY = posAntB[1]
+    CX = AX + (AX-BX)
+    CY = AY + (AY-BY) 
     
+    if isinGrid ((CX,CY),maxPos):
+        return (CX,CY)
+    return (-1,-1)
+    
+def findAntiNodes(maxY,maxX,posAntennes):
+    maxPos = (maxX,maxY)
+    posAntiNodes=[]
+    posAntennesList = posAntennes.keys()
+    for antenne in posAntennesList:
+        for posAntA in posAntennes[antenne]:
+            for posAntB in posAntennes[antenne]:
+                if posAntA != posAntB: 
+                    antiNode = calcAntiNodes(posAntA,posAntB,maxPos)
+                    if antiNode != (-1,-1):
+                        posAntiNodes.append(antiNode)
+    return posAntiNodes
+
 def taskA (data) -> int:
     gameScoreA = 0
+    maxY,maxX,posAntennes = identifyAntennes(data)
+    antiNodes = findAntiNodes(maxY,maxX,posAntennes)
+    antiNodes = list(set(antiNodes))
+    gameScoreA = len(antiNodes)
+    print (data)
     return gameScoreA
 
 def taskB (data) -> int: