Example: in C

C
C++
C#
Java
Python
PHP
// Step 3: Display Upper Triangular Matrix
    printf("\n--- Displaying Upper Triangular Matrix ---\n");
    for (int i = 0; i < ROWS; i++) {
        for (int j = 0; j < COLS; j++) {
            if (j >= i) { // Elements on or above the main diagonal
                printf("%d ", matrix[i][j]);
            } else { // Elements below the main diagonal
                printf("0 "); // Replace with 0
            }
        }
        printf("\n");
    }