#include <iostream> #include <iomanip> using namespace std; int main() { int n; cin >> n; for (int i = 0; i < n; i++) { // 输出左侧空格 for (int k = 0; k < i; k++) { cout << setw(5) << " "; } // 输出对角线及右上部分 for (int j = i; j < n; j++) { cout << setw(5) << (j - i + 1); } cout << endl; } return 0; } /************************************************************** Problem: 1204 User: fandaohan Language: C++ Result: Accepted Time:9 ms Memory:2072 kb ****************************************************************/