Added Solutions for Problem 27-32

Author: guranshdeol

C++/27_The_last_2_digits.cpp

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+//Given a number N. Print numbers from 1 to N in separate lines.
+
+#include <iostream> //iostream is a header file that contains basic input/output functions
+using namespace std; //std is the standard namespace
+
+int main() //main function
+{
+    int n; //declaring a variable n
+    cin >> n; //taking input from user
+    for (int i = 1; i <= n; i++) //for loop
+    {
+        cout << i << endl; //printing the numbers
+    }
+    return 0; //returning 0
+    //end of program
+}

C++/28_1_to_N.cpp

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+//Given a number N. Print all even numbers between 1 and N inclusive in separate lines.
+
+#include <iostream> //iostream is a header file that contains basic input/output functions
+using namespace std; //std is the standard namespace
+
+int main() //main function
+{
+    int n; //declaring a variable n
+    cin >> n; //taking input from user
+    for (int i = 2; i <= n; i += 2) //for loop
+    {
+        cout << i << endl; //printing the numbers
+    }
+    return 0; //returning 0
+    //end of program
+}

C++/29_Even_Numbers.cpp

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+//Given N numbers. Count how many of these values are even, odd, positive and negative.
+
+#include <iostream> //iostream is a header file that contains basic input/output functions
+using namespace std; //std is the standard namespace
+
+int main() //main function
+{
+    int n; //declaring a variable n
+    cin >> n; //taking input from user
+    int even = 0, odd = 0, positive = 0, negative = 0; //declaring variables
+    for (int i = 1; i <= n; i++) //for loop
+    {
+        int x; //declaring a variable x
+        cin >> x; //taking input from user
+        if (x % 2 == 0) //if x is even
+        {
+            even++; //incrementing even
+        }
+        else //if x is odd
+        {
+            odd++; //incrementing odd
+        }
+        if (x > 0) //if x is positive
+        {
+            positive++; //incrementing positive
+        }
+        else if (x < 0) //if x is negative
+        {
+            negative++; //incrementing negative
+        }
+    }
+    cout << even << " " << odd << " " << positive << " " << negative << endl; //printing the numbers
+    return 0; //returning 0
+    //end of program
+}

C++/30_Even,Odd,Positive_and_Negative.cpp

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+//Given multiple lines each line contains a number X which is a password. Print "Wrong" if the password is incorrect otherwise, print "Correct" and terminate the program.
+
+#include <iostream> //iostream is a header file that contains basic input/output functions
+using namespace std; //std is the standard namespace
+
+int main() //main function
+{
+    int x; //declaring a variable x
+    while (cin >> x) //while loop
+    {
+        if (x == 2002) //if x is 2002
+        {
+            cout << "Correct" << endl; //printing "Correct"
+            break; //breaking the loop
+        }
+        else //if x is not 2002
+        {
+            cout << "Wrong" << endl; //printing "Wrong"
+        }
+    }
+    return 0; //returning 0
+    //end of program
+}

C++/31_Fixed_Password.cpp

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+//Given a number N, and N numbers, find maximum number in these N numbers.
+
+#include <iostream> //iostream is a header file that contains basic input/output functions
+using namespace std; //std is the standard namespace
+
+int main() //main function
+{
+    int n; //declaring a variable n
+    cin >> n; //taking input from user
+    int max = -1000000000; //declaring a variable max and assigning it a value of -1000000000
+    for (int i = 0; i < n; i++) //for loop
+    {
+        int x; //declaring a variable x
+        cin >> x; //taking input from user
+        if (x > max) //if x is greater than max
+        {
+            max = x; //assigning x to max
+        }
+    }
+    cout << max << endl; //printing max
+    return 0; //returning 0
+    //end of program
+}

C++/32_max.cpp

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+//Given a number N, and N numbers, find maximum number in these N numbers.
+
+#include <iostream> //iostream is a header file that contains basic input/output functions
+using namespace std; //std is the standard namespace
+
+int main() //main function
+{
+    int n; //declaring a variable n
+    cin >> n; //taking input from user
+    int max = -1000000000; //declaring a variable max and assigning it a value of -1000000000
+    for (int i = 0; i < n; i++) //for loop
+    {
+        int x; //declaring a variable x
+        cin >> x; //taking input from user
+        if (x > max) //if x is greater than max
+        {
+            max = x; //assigning x to max
+        }
+    }
+    cout << max << endl; //printing max
+    return 0; //returning 0
+    //end of program
+}