标题：打印图形 小明在X星球的城堡中发现了如下图形和文字： rank=3 * * * * * * * * * rank=5 *

#include<stdio.h> #include<math.h> #define N 70 void f(char a[][N], int rank, int row, int col) {if(rank==1){a[row][col] = '*';return;}int w = 1;int i;for(i=0; i<rank-1; i++) w *= 2;f(a, rank-1, row, col+w/2);f(a, rank-1, row+w/2, col);f(a, rank-1, row+w/2, col+w); } int main() {char a[N][N];int i,j;for(i=0;i<N;i++)for(j=0;j<N;j++) a[i][j] = ' ';f(a,5,0,0);for(i=0; i<N; i++){for(j=0; j<N; j++) printf("%c",a[i][j]);printf("n");}return 0; }