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Multidimensional Arrays

Multidimensional Arrays

Learn about multidimensional arrays that are very useful for solving programming problems.

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C provides support for multidimensional arrays. Here is how we can define a two-dimensional array of integers, initialize values, and index into it to read off values:

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#include <stdio.h>
int main(void)
{
  int grades[2][2] = {1, 2, 3, 4};
  int i, j;
  for (i = 0; i < 2; i++) {
    for (j = 0; j < 2; j++) {
      printf("grades[%d][%d]=%d\n", i, j, grades[i][j]);
    }
  }
  return 0;
}

We can think of this array as a matrix or a table with 2 rows and 2 columns:

  • The first row contains
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