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Nested Loops in C++

Nested loops are loops inside other loops. They are useful for working with multi-dimensional data structures like matrices.

Example: Multiplication Table

Code Example

#include <iostream>

int main() {
    for (int i = 1; i <= 5; i++) {
        for (int j = 1; j <= 5; j++) {
            std::cout << (i * j) << "\t";
        }
        std::cout << std::endl;
    }
    return 0;
}

Explanation: The program prints a 5x5 multiplication table using nested for loops.

Key Takeaways

  • Nested loops are useful for iterating over multi-dimensional data structures.
  • The inner loop completes all its iterations for each iteration of the outer loop.
  • Be cautious of the total number of iterations to avoid performance issues.
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