updated code

Author: Coding Blocks

01 Getting Started with C++/.DS_Store

@@ -2,12 +2,30 @@
 using namespace std;
 
 
-int main(){
+int main() {
 
 	// Give a Number N
 	// Square root of the number without using any predefined function
-	
-	
+	int N;
+	int P;
+	cin >> N >> P;
+
+
+	float ans = 0;
+	float inc = 1.0;
+
+	for (int times = 0; times <= P; times++) {
+
+		// Finalise the correct digit for the current place
+		while (ans * ans <= N) {
+			ans = ans + inc;
+		}
+		ans = ans - inc ;
+		// Updates the increment for the next position
+		inc = inc / 10;
+	}
+
+	cout << ans << endl;
 
 	return 0;
 }

01 Getting Started with C++/cplusplus-datastructures-algorithms-coding-blocks

@@ -2,24 +2,24 @@
 using namespace std;
 
 
-int main(){
+int main() {
 
 	int cliff_end = 10;
 	int x = 10;
 
-	while(x<cliff_end){
+	while (x < cliff_end) {
 		x = x + 1;
-		cout<<"Taking 1 step reaching :"<<x <<endl;
+		cout << "Taking 1 step reaching :" << x << endl;
 	}
 
-	cout<<"Final X "<<x<<endl;
+	cout << "Final X " << x << endl;
 
-	if(x==cliff_end){
-		cout<<"We are standing at cliff edge!"<<endl;
+	if (x == cliff_end) {
+		cout << "We are standing at cliff edge!" << endl;
 	}
 
-	else if(x>cliff_end){
-		cout<<"Falling from the cliff!"<<endl;
+	else if (x > cliff_end) {
+		cout << "Falling from the cliff!" << endl;
 	}
 
 

02 Programming Fundamentals-I/square_root.cpp

@@ -0,0 +1,65 @@
+#include<iostream>
+using namespace std;
+
+
+int main() {
+
+	//Comma Operator
+	int a, b, c;
+
+	// Assignment Operator
+	a = 10;
+	b = 20;
+	c = 30;
+
+	//Logical Operator
+	if (c > a and c > b) {
+		cout << "C is largest" << endl;
+	}
+
+
+	// Ternary Operator
+	int x = c % 2 == 0 ? 1 : 0;
+	cout << x << endl;
+	c % 2 == 0 ? cout << "Even" : cout << "Odd";
+	cout << endl;
+
+	// Bitwise Operator
+	x = 5;
+	int y = 7;
+	cout << "AND " << (x & y) << endl;
+	cout << " OR " << (x | y) << endl;
+	cout << "XOR " << (x ^ y) << endl;
+
+	// Shift Operator
+	x = x << 2;
+
+	cout << x << endl; // 20
+	cout << (y >> 1) << endl; //3
+	// Unary Operator
+
+	// Address Of
+	cout << (&x) << endl;
+
+	//Post Increment / Decrement Operator
+	a = 10;
+	int z = a++; //z = 10, a = 11
+	cout << z << endl; // 10
+	z = ++a; // a = 12, z = 12
+	cout << z << endl; // 12
+
+	// Compound Assingment Operator
+	a = 10;
+	a *= 3;
+	cout << "A after multiply " << a << endl; // 30
+	a %= 5;
+	cout << "A after modulo " << a << endl; //0
+
+	b = 5;
+	b <<= 1 ;
+	cout << "B after left shift" << b << endl; //10
+
+
+
+	return 0;
+}

02 Programming Fundamentals-I/while_do_while.cpp

@@ -0,0 +1,42 @@
+/*Write program to calculate digits,
+whitespace,alphabets and other characters terminated by $ */
+
+#include<iostream>
+using namespace std;
+
+
+int main() {
+
+	int digits = 0;
+	int alphabets = 0;
+	int spaces = 0;
+	int other = 0;
+
+	char ch;
+	ch = cin.get();
+
+	while (ch != '$') {
+
+		if (ch >= '0' and ch <= '9') {
+			digits++;
+		}
+		else if ( (ch >= 'a' and ch <= 'z') or (ch >= 'A' and ch <= 'Z')) {
+			alphabets++;
+		}
+		else if (ch == ' ' or ch == '\n' or ch == '\t') {
+			spaces++;
+		}
+		else {
+			other++;
+		}
+		ch = cin.get();
+	}
+
+	cout << "Digits " << digits << endl;
+	cout << "alphabets " << alphabets << endl;
+	cout << "spaces " << spaces << endl;
+	cout << "Others " << other << endl;
+
+
+	return 0;
+}

03 Programming Fundamentals-II/bitwise_operators.cpp

@@ -2,7 +2,8 @@
 using namespace std;
 
 
-int main(){
+
+int main() {
 
 	// Problem - Read a list of characters (sentence)
 	// cin.get()
@@ -12,9 +13,9 @@ int main(){
 	//reads the first char
 	ch = cin.get(); //this method reads any single char including spaces/newlines from the input buffer
 
-	while(ch!='.'){
+	while (ch != '.') {
 		//Print the last character that we have read
-		cout<<ch;
+		cout << ch;
 		// Update my char in the memory (read the next character)
 		//reads the rest of the characters
 		ch = cin.get();

03 Programming Fundamentals-II/calc_digits_spaces_alphabets.cpp

@@ -0,0 +1,2 @@
+
+newprog

03 Programming Fundamentals-II/cinget.cpp

@@ -0,0 +1,38 @@
+/*
+Pattern Problem
+N = 5
+- For ith line print i numbers
+- odd line start with 0, and value alternates btw 0 and 1
+- even line start with 1, and value alternate btw 0 and 1
+- print n lines
+
+0
+10
+010
+1010
+01010
+101010
+*/
+
+#include<iostream>
+using namespace std;
+
+
+int main() {
+
+	int n;
+	cin >> n;
+
+	for (int i = 1; i <= n; i++) {
+		int val = i % 2 == 0 ? 1 : 0;
+
+		//Print i values in ith line
+		for (int cnt = 1; cnt <= i; cnt++) {
+			cout << val;
+			val = 1 - val; // val = 1, val = 0, val = 1, ....
+		}
+		cout << endl;
+	}
+
+	return 0;
+}

03 Programming Fundamentals-II/hello.cpp

@@ -0,0 +1,42 @@
+#include<iostream>
+using namespace std;
+
+int main() {
+
+	//Switch Case
+	/* Design a Menu - where pressing a button gives you the corresponding item
+
+	B - Burger
+	M - Maggi
+	P - Pizza
+	C - Coke
+	D - Dosa
+	.
+	.
+	and so on!
+	*/
+	char ch;
+	cin >> ch;
+	int pizza_orders = 0;
+
+	switch (ch) {
+	case 'B' : cout << "Burger" << endl;
+		break;
+
+	case 'm' :
+	case 'M' : cout << "Maggi" << endl;
+		break;
+
+	case 'p' :
+	case 'P' : cout << "Pizza" << endl;
+		pizza_orders++;
+
+		break;
+
+	default : cout << "Item not available!" << endl;
+	}
+
+
+
+	return 0;
+}