updating delete and earn with python sol

delete-and-earn/src/saad.py

@@ -0,0 +1,36 @@
+
+class Solver:
+
+    def __init__(self):
+        self.n_ = 0
+        self.v_ = []
+        self.freq_ = []
+
+    def read_input(self) -> None:
+        self.n_ = int(input())
+        self.v_ = list(map(int, input().split()))
+
+    def process_freq(self) -> None:
+        self.freq_ = [0] * (max(self.v_) + 1)
+
+        for i in self.v_:
+            self.freq_[i] += 1
+
+    def solve(self):
+        self.process_freq()
+        dp = [0] * (max(self.v_)+1)
+        dp[1] = self.freq_[1]
+        for i in range(2, len(dp)):
+            dp[i] = max(dp[i-1], dp[i-2] + i * self.freq_[i])
+        
+        print(dp[-1])
+
+
+def main():
+    solver = Solver()
+    solver.read_input()
+    solver.solve()
+
+
+if __name__ == "__main__":
+    main()