C++如何优雅地打印杨辉三角形

下面是一个优雅地打印杨辉三角形的C++代码示例：

#include <iostream>#include <vector>void printPascalTriangle(int numRows) {    std::vector<std::vector<int>> triangle(numRows);    for (int i = 0; i < numRows; i++) {        triangle[i].resize(i + 1);        triangle[i][0] = triangle[i][i] = 1;        for (int j = 1; j < i; j++) {            triangle[i][j] = triangle[i - 1][j - 1] + triangle[i - 1][j];        }    }    for (int i = 0; i < numRows; i++) {        for (int j = 0; j <= i; j++) {            std::cout << triangle[i][j] << " ";        }        std::cout << std::endl;    }}int main() {    int numRows;    std::cout << "Enter the number of rows for Pascal's Triangle: ";    std::cin >> numRows;    printPascalTriangle(numRows);    return 0;}

运行这段代码，用户输入所需的行数，程序将打印出相应行数的杨辉三角形。