How to Work with Nested For Loops in C++
A nested for
loops are almost the same as a nested while
loops. They allow you to create a set of iterations within another set of iterations, but in more convenient way. It is particularly useful when dealing with two-dimensional or multi-dimensional data structures with elements your want to iterate through.
Remember like in the previous section, we had a task that involved creating a rectangle in a console using three loops? As you already could guess there is a more straightforward and flexible way to accomplish this.
main.cpp
123456789101112#include <iostream> int main() { for (int i = 0; i < 5; i++) { for (int j = 0; j < 5; j++) { std::cout << '#'; } std::cout << std::endl; } }
Understanding nested loops may be challenging initially, but once you grasp the concept, it becomes easy. So, let's try to practice.
Swipe to start coding
Create a nested loop to output the next line instead of a rectangle: ##### #### ### ## #
Solución
solution.cpp
¡Gracias por tus comentarios!
single
Pregunte a AI
Pregunte a AI
Pregunte lo que quiera o pruebe una de las preguntas sugeridas para comenzar nuestra charla
Resumir este capítulo
Explicar el código en file
Explicar por qué file no resuelve la tarea
Awesome!
Completion rate improved to 9.09
How to Work with Nested For Loops in C++
Desliza para mostrar el menú
A nested for
loops are almost the same as a nested while
loops. They allow you to create a set of iterations within another set of iterations, but in more convenient way. It is particularly useful when dealing with two-dimensional or multi-dimensional data structures with elements your want to iterate through.
Remember like in the previous section, we had a task that involved creating a rectangle in a console using three loops? As you already could guess there is a more straightforward and flexible way to accomplish this.
main.cpp
123456789101112#include <iostream> int main() { for (int i = 0; i < 5; i++) { for (int j = 0; j < 5; j++) { std::cout << '#'; } std::cout << std::endl; } }
Understanding nested loops may be challenging initially, but once you grasp the concept, it becomes easy. So, let's try to practice.
Swipe to start coding
Create a nested loop to output the next line instead of a rectangle: ##### #### ### ## #
Solución
solution.cpp
¡Gracias por tus comentarios!
Awesome!
Completion rate improved to 9.09single