01/10/2018, 16:19

Giúp em chuyển đổi C++ thành C

#include <iostream>
#include <iomanip>
using namespace std;

// This function prints the first and second rows
// That is the heading across the top
void printHeader(int start, int end) {

	// Print lead space and then numbers from start to end
	cout << setw(4) << " ";
	for (int firstrow = start; firstrow <= end; firstrow++) { 
		cout << setw(3) << firstrow << " ";
	}
	cout << endl;

	// Second line, lead space then proper number of dashes
	cout << setw(4) << " ";
	for (int secondrow = start; secondrow <= end; secondrow++) { 
		cout << "----";
	}
	cout << endl;
}

int main() {
	int start;
	int end;

	// Collect start and end of listing
	cout << "Enter a start index (integer): " << endl;
	cin >> start;

	cout << "Enter an end index (integer): " << endl;
	cin >> end;

	// Nested loop will loop through rows and for each
	// row we loop through columns
	for (int i = start; i <= end; i++) {
		// Executes once to print header
		if (i == start) {
			printHeader(start, end);
		}

		// Now loop through columns
		for (int j = start; j <= end; j++) {
			// Once per row create first column heading
			if (j == start) {
				cout << setw(3)<<  i << "|";
			}

			// Multiply row and column
			cout << setw(3) << (i * j) << " ";
		}

		// End row
		cout << endl;
	}

	return 0;
}