Nested Control Structures

Nested control structures refer to the usage of control structures within each other. This allows us to create complex decision-making processes and iterate over multiple levels of data.

By nesting control structures, we can perform different actions based on multiple conditions. This provides us with more flexibility and allows us to create powerful algorithms.

Let's take a look at an example of nested control structures in C++:

1#include <iostream>
2using namespace std;
3
4int main() {
5  int age = 25;
6  bool isStudent = true;
7
8  if (age >= 18) {
9    cout << "You are an adult."
10;
11    if (isStudent) {
12      cout << "You are a student."
13;
14    } else {
15      cout << "You are not a student."
16;
17    }
18  } else {
19    cout << "You are not an adult."
20;
21  }
22
23  return 0;
24}

In this example, we have nested an if statement inside another if statement. The outer if statement checks if the age is greater than or equal to 18. If it is, then it prints "You are an adult." The inner if statement checks if the person is a student. If they are, it prints "You are a student." If they are not, it prints "You are not a student." If the age is less than 18, it prints "You are not an adult."

By nesting control structures, we can create more complex logic and handle different scenarios based on multiple conditions. This allows us to build more sophisticated programs and algorithms.

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#include <iostream>

using namespace std;

​

int main() {

  int age = 25;

  bool isStudent = true;

​

  if (age >= 18) {

    cout << "You are an adult.";

    if (isStudent) {

      cout << " You are a student.";

    } else {

      cout << " You are not a student.";

    }

  } else {

    cout << "You are not an adult.";

  }

​

  return 0;

}