created and first commit(3 solusions)

solutions/0001.multiples/euler_1.py

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+"""
+Project Euler Problem 1 :
+Find the sum of all the multiples of 3 or 5 below 1000.
+"""
+
+UP_NUM = 1000
+
+
+def condition(num: int) -> bool:
+    if num % 3 == 0:
+        return True
+    elif num % 5 == 0:
+        return True
+    return False
+
+
+def main():
+    res = []
+    for i in range(1, UP_NUM):
+        if condition(i):
+            res.append(i)
+    print(sum(res))
+
+
+if __name__ == "__main__":
+    main()