TheAlgorithms · sgindeed · Oct 6, 2025
diff --git a/other/Calculator/Calc.py b/other/Calculator/Calc.py
@@ -0,0 +1,64 @@
+# calc.py
+from flask import Flask, render_template_string, request
+
+app = Flask(__name__)
+
+# HTML template
+template = """
+<!DOCTYPE html>
+<html>
+<head>
+    <title>Flask Calculator</title>
+    <style>
+        body { font-family: Arial; background-color: #f5f5f5; text-align: center; padding: 50px; }
+        input[type=number], select { padding: 10px; margin: 10px; width: 150px; }
+        input[type=submit] { padding: 10px 20px; margin: 10px; }
+        h1 { color: #2c3e50; }
+        .result { margin-top: 20px; font-size: 1.5em; color: #27ae60; }
+    </style>
+</head>
+<body>
+    <h1>Flask Calculator</h1>
+    <form method="POST">
+        <input type="number" name="num1" step="any" placeholder="First Number" required>
+        <input type="number" name="num2" step="any" placeholder="Second Number" required>
+        <br>
+        <select name="operation">
+            <option value="add">Add (+)</option>
+            <option value="subtract">Subtract (-)</option>
+            <option value="multiply">Multiply (×)</option>
+            <option value="divide">Divide (÷)</option>
+        </select>
+        <br>
+        <input type="submit" value="Calculate">
+    </form>
+    {% if result is not none %}
+        <div class="result">Result: {{ result }}</div>
+    {% endif %}
+</body>
+</html>
+"""
+
+@app.route("/", methods=["GET", "POST"])
+def calculator():
+    result = None
+    if request.method == "POST":
+        try:
+            num1 = float(request.form["num1"])
+            num2 = float(request.form["num2"])
+            op = request.form["operation"]
+
+            if op == "add":
+                result = num1 + num2
+            elif op == "subtract":
+                result = num1 - num2
+            elif op == "multiply":
+                result = num1 * num2
+            elif op == "divide":
+                result = num1 / num2 if num2 != 0 else "Error: Division by zero"
+        except ValueError:
+            result = "Invalid input"
+    return render_template_string(template, result=result)
+
+if __name__ == "__main__":
+    app.run(debug=True)