题解 | 空心正方形图案
空心正方形图案
https://www.nowcoder.com/practice/72347ee949dc47399186ee183632f303
#include <stdio.h> int main(int argc, char const* argv[]) { int n = 0; int i = 0, j = 0; while (scanf("%d", &n) == 1) { for (i = 0; i < n; i++) { for (j = 0; j < n; j++) if (i == 0 || i == n - 1 || j == 0 || j == n - 1) printf("* "); else printf(" "); putchar('\n'); } } return 0; }