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 a = 0;
while (scanf("%d", &a) != EOF)
{
for (int i = 0; i < a; i++) {
for (int j = 0; j < a; j++) {
if (i == 0 || i == a - 1 || j == 0 || j == a - 1) {
printf("* ");
}
else {
printf(" ");
}
}
printf("\n");
}
}
return 0;
}
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