Merge pull request #27 from Ansh04122001/main

update tic tac toe. py   and cpp for c++

30 day hackerrank for c++/30 days of code( c++)/day0.cpp

@@ -0,0 +1,22 @@
+#include <cmath>
+#include <cstdio>
+#include <vector>
+#include <iostream>
+#include <algorithm>
+using namespace std;
+int main() {
+    // Declare a variable named 'input_string' to hold our input.
+    string input_string; 
+
+    // Read a full line of input from stdin (cin) and save it to our variable, input_string.
+    getline(cin, input_string); 
+
+    // Print a string literal saying "Hello, World." to stdout using cout.
+    cout << "Hello, World." << endl;
+
+    // TODO: Write a line of code here that prints the contents of input_string to stdout.
+    cout<<input_string;
+
+    return 0;
+}
+

30 day hackerrank for c++/30 days of code( c++)/day1.cpp

@@ -0,0 +1,29 @@
+#include <iostream>
+#include <iomanip>
+#include <limits>
+
+using namespace std;
+
+int main() {
+    int i = 4;
+    double d = 4.0;
+    string s = "HackerRank ";
+int j=0,sum1; double e,sum2=0.0; string t,sum3=""; 
+
+    // Declare second integer, double, and String variables.
+    cin>>j>>e;
+ cin.ignore(); getline(cin, t);
+    // Read and save an integer, double, and String to your variables.
+    // Note: If you have trouble reading the entire string, please go back and review the Tutorial closely.
+    sum1=i+j;
+    printf("%d\n",sum1);
+    sum2=d+e;
+    // Print the sum of both integer variables on a new line.
+    cout<<fixed<<setprecision(1)<<sum2<<"\n";
+    sum3=s+t;
+    // Print the sum of the double variables on a new line.
+    cout<<sum3;
+    // Concatenate and print the String variables on a new line
+    // The 's' variable above should be printed first.
+
+    return 0;}

30 day hackerrank for c++/30 days of code( c++)/day10.cpp

@@ -0,0 +1,33 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+
+
+int main()
+{
+    int n;
+    cin >> n;
+    cin.ignore(numeric_limits<streamsize>::max(), '\n');
+   int rem=0,s=0,t=0;
+
+
+    while(n>0)
+        {
+        rem=n%2;
+        n=n/2;
+        if(rem==1)
+         {   s++;
+           if(s>=t)
+
+            t=s;
+
+        }
+        else{
+
+            s=0;
+        }   
+    }
+cout<<t;
+return 0;
+}

30 day hackerrank for c++/30 days of code( c++)/day11.cpp

@@ -0,0 +1,42 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+
+
+int main()
+{
+    vector<vector<int>> arr(6);
+    for (int i = 0; i < 6; i++) {
+        arr[i].resize(6);
+
+        for (int j = 0; j < 6; j++) {
+            cin >> arr[i][j];
+        }
+
+        cin.ignore(numeric_limits<streamsize>::max(), '\n');
+    }
+    int temp_sum;int max_sum = 0;
+
+    for(int i = 0; i < 4; i++) {
+        for(int j = 0; j < 4; j++) {
+            temp_sum = 0;
+            // top row
+            temp_sum += arr[i][j];
+            temp_sum += arr[i][j+1];
+            temp_sum += arr[i][j+2];
+            //middle 
+            temp_sum += arr[i+1][j+1];
+            //bottom row
+            temp_sum += arr[i+2][j];
+            temp_sum += arr[i+2][j+1];
+            temp_sum += arr[i+2][j+2];
+
+            //if first hourglass, set as max
+            if(temp_sum > max_sum || i == 0 && j == 0)
+                max_sum = temp_sum;
+        }
+    }
+    cout << max_sum;
+    return 0;
+}

30 day hackerrank for c++/30 days of code( c++)/day12.cpp

@@ -0,0 +1,77 @@
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+
+class Person{
+	protected:
+		string firstName;
+		string lastName;
+		int id;
+	public:
+		Person(string firstName, string lastName, int identification){
+			this->firstName = firstName;
+			this->lastName = lastName;
+			this->id = identification;
+		}
+		void printPerson(){
+			cout<< "Name: "<< lastName << ", "<< firstName <<"\nID: "<< id << "\n"; 
+		}
+
+};
+
+class Student :  public Person
+{
+    private:
+        vector<int> testScores;
+        int sum=0, subs=0;
+        double avg=0.0;
+    public:
+       Student(string firstN, string lastN, int idS, vector<int> scores): Person(firstN,lastN,idS)
+       {
+         this->testScores=scores;
+         subs=testScores.size();
+       }
+      char calculate()
+        {
+           char g;
+           for(unsigned int i=0; i<subs; ++i)
+            {
+               sum+=testScores[i];
+            }
+           avg=sum/subs;
+           if     (avg>=90 && avg<=100)
+                  g='O';
+           else if(avg>=80 && avg<=90)
+                  g='E';
+           else if(avg>=70 && avg<=80)
+                  g='A';
+           else if(avg>=55 && avg<=75)
+                  g='P';
+           else if(avg>=40 && avg<=55)
+                  g='D';
+           else if(avg<40)
+                  g= 'T';
+            return g;
+        }
+
+};
+
+int main() {
+	string firstName;
+  	string lastName;
+	int id;
+  	int numScores;
+	cin >> firstName >> lastName >> id >> numScores;
+  	vector<int> scores;
+  	for(int i = 0; i < numScores; i++){
+	  	int tmpScore;
+	  	cin >> tmpScore;
+		scores.push_back(tmpScore);
+	}
+	Student* s = new Student(firstName, lastName, id, scores);
+	s->printPerson();
+	cout << "Grade: " << s->calculate() << "\n";
+	return 0;
+}

30 day hackerrank for c++/30 days of code( c++)/day13.cpp

@@ -0,0 +1,63 @@
+#include <cmath>
+#include <cstdio>
+#include <vector>
+#include <iostream>
+#include <algorithm>
+#include <string>
+using namespace std;
+class Book{
+    protected:
+        string title;
+        string author;
+    public:
+        Book(string t,string a){
+            title=t;
+            author=a;
+        }
+        virtual void display()=0;
+
+};
+
+// Write your MyBook class here
+class MyBook : Book{
+  int price;
+  public:
+    string title;
+    string author;
+ MyBook(string title_,string author_,int price_) : Book(title_,author_) ,price(price_){
+
+ }
+ virtual void display(){
+     cout<<"Title: "<<Book::title<<"\n"<<"Author: "<<Book::author<<"\n"<<"Price: "<<price;
+ }
+
+
+
+};
+    //   Class Constructor
+    //   
+    //   Parameters:
+    //   title - The book's title.
+    //   author - The book's author.
+    //   price - The book's price.
+    //
+    // Write your constructor here
+
+
+    //   Function Name: display
+    //   Print the title, author, and price in the specified format.
+    //
+    // Write your method here
+
+// End class
+
+int main() {
+    string title,author;
+    int price;
+    getline(cin,title);
+    getline(cin,author);
+    cin>>price;
+    MyBook novel(title,author,price);
+    novel.display();
+    return 0;
+}

30 day hackerrank for c++/30 days of code( c++)/day14.cpp

@@ -0,0 +1,51 @@
+#include <cmath>
+#include <cstdio>
+#include <vector>
+#include <iostream>
+#include <algorithm>
+
+using namespace std;
+
+class Difference {
+    private:
+    vector<int> elements;
+
+  	public:
+  	int maximumDifference;
+
+	// Add your code here
+Difference(vector<int> a )
+{
+elements = a;
+}
+void computeDifference(){
+ short int i, max = 0, min = 101;
+        for(i = 0; i < elements.size(); ++i)
+            max = elements[i] > max ? elements[i] : max;
+        for(i = 0; i < elements.size(); ++i)
+            min = elements[i] < min ? elements[i] : min;
+        maximumDifference = max - min;
+}
+}; // End of Difference class
+
+int main() {
+    int N;
+    cin >> N;
+
+    vector<int> a;
+
+    for (int i = 0; i < N; i++) {
+        int e;
+        cin >> e;
+
+        a.push_back(e);
+    }
+
+    Difference d(a);
+
+    d.computeDifference();
+
+    cout << d.maximumDifference;
+
+    return 0;
+}

30 day hackerrank for c++/30 days of code( c++)/day15.cpp

@@ -0,0 +1,50 @@
+#include <iostream>
+#include <cstddef>
+using namespace std;	
+class Node
+{
+    public:
+        int data;
+        Node *next;
+        Node(int d){
+            data=d;
+            next=NULL;
+        }
+};
+class Solution{
+    public:
+
+      Node* insert(Node *head,int data)
+      {
+          Node** pp = &head; // pp is the pointer to the pointer head
+  while(*pp) // While head is not null (the content of pp is not null)
+     pp = &((*pp)->next); // pp receive the address of the pointer to the next node
+     *pp = new Node(data); // In this moment the content of pp is the address to the last node
+     return head;
+
+          //Complete this method
+      }
+
+      void display(Node *head)
+      {
+          Node *start=head;
+          while(start)
+          {
+              cout<<start->data<<" ";
+              start=start->next;
+          }
+      }
+};
+int main()
+{
+	Node* head=NULL;
+  	Solution mylist;
+    int T,data;
+    cin>>T;
+    while(T-->0){
+        cin>>data;
+        head=mylist.insert(head,data);
+    }	
+	mylist.display(head);
+
+}

30 day hackerrank for c++/30 days of code( c++)/day16.cpp

@@ -0,0 +1,17 @@
+#include <bits/stdc++.h>
+using namespace std;
+int main()
+{
+    string S;
+    cin >> S;
+    try
+    {
+        int n = stoi(S);
+        cout << n << endl;
+    }
+    catch (exception a)
+    {
+        cout << "Bad String";
+    }
+    return 0;
+}