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  1. /* Example 2: User Input for a 2D Array  */
  2. #include <stdio.h>
  3. int main() {
  4.     int rows, cols;
  5.     // Ask user for the size of the array
  6.     printf("Enter number of rows and columns: ");
  7.     scanf("%d %d", &rows, &cols);
  8.     int matrix[rows][cols];
  9.     // Input elements into the 2D array
  10.     printf("Enter elements of the matrix:\n");
  11.     for (int i = 0; i < rows; i++) {
  12.         for (int j = 0; j < cols; j++) {
  13.             scanf("%d", &matrix[i][j]);
  14.         }
  15.     }
  16.     // Print the 2D array
  17.     printf("The entered matrix is:\n");
  18.     for (int i = 0; i < rows; i++) {
  19.         for (int j = 0; j < cols; j++) {
  20.             printf("%d ", matrix[i][j]);
  21.         }
  22.         printf("\n");
  23.     }
  24.     return 0;
  25. }
Success #stdin #stdout 0.01s 5280KB
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stdin
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Standard input is empty
stdout
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Enter number of rows and columns: Enter elements of the matrix:
The entered matrix is:
https://ideone.com/9HnKb6
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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