Update Bitset

Bitset

@@ -1,4 +1,22 @@
+const int SZ = 2001;
 
+void functions()
+{
+	bitset<SZ> bit;
+	bit.all(); //checks whether all bits are set or not
+	bit.any(); //checks whether >= 1 bit is on
+	bit.none(); //checks if all bits are off
+	bit.count(); //counts no of set bits
+	bit.flip(); //flips all bits
+	bit.flip(1); //flips 1st bit
+	bit.reset(); //resets all bits to 0
+	bit.reset(1); //resets 1st bit
+	bit.set(); //sets all bits to 1
+	bit.set(1); //sets 1st bit to 1
+	bit.size(); //return size of bitset
+	bit.test(1); //check if 1st bit is on or not
+	cout << bit.to_string(); //converts to string
+}
 
 //Problem 1 (DP): https://www.spoj.com/problems/ADACOINS/