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
#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: ##### #### ### ## #
Solution
solution
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