解题思路:
从中心往四周扩散
注意事项:
要有信心,我蹦了几次;狗头狗头
参考代码:
#include<stdio.h>
int main()
{
char str[125][125];
int no = 0;
int zong = 0;
int zhongxing = 0;
int n1 = 0;
int n2 = 0;
int n4 = 0;
scanf("%d", &no);
zong = no * 4 + 5;
zhongxing = (zong / 2) ;
for (int i = zhongxing - 2; i <= zhongxing + 2; i++)
{
str[i][zhongxing] = '$';
str[zhongxing][i] = '$';
}
for (int i = 1, n1 = zhongxing - 4, n2 = zhongxing + 4; i <= no; i++, n1 -= 2, n2 += 2)
{
for (int j = zhongxing - 2 * i; j <= zhongxing + 2 * i; j++)
{
str[n1][j] = '$';
str[j][n1] = '$';
str[n2][j] = '$';
str[j][n2] = '$';
}
}
for (int i = 1; i < zong; i++)
{
for (int j = 0; j < zong; j++)
{
if ((i % 2 == 0)&&i<zhongxing)
{
if(i==j)
{
str[i][j] = '$';
str[i - 1][j] = '$';
str[i][j - 1] = '$';
}
if (j == (zong - i - 1))
{
str[i][zong - i - 1] = '$';
str[i - 1][zong - i - 1] = '$';
str[i][zong - i] = '$';
}
}
else if ((i % 2 == 0) && i > zhongxing && i < zong - 1)
{
if (i == j)
{
str[i][j] = '$';
str[i + 1][j] = '$';
str[i][j + 1] = '$';
}
if (j == (zong - i - 1))
{
str[i][zong - i - 1] = '$';
str[i + 1][zong - i - 1] = '$';
str[i][zong - i - 2] = '$';
}
}
}
}
for (int i = 0; i < zong; i++)
{
for (int j = 0; j < zong; j++)
{
if (str[i][j] == '$')
{
printf("%c", str[i][j]);
}
else {
printf(".");
}
}
printf("\n");
}
printf("\n");
return 0;
}
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