字母旋转方阵c语言,旋转矩阵解决办法

C/C++ code#include

#define MAXN 10

char m[MAXN+2][MAXN+2];

char d;

int x,y,k,n;

void main() {

while (1) {

printf("Input n(1..%d):",MAXN);

fflush(stdout);

rewind(stdin);

if (1==scanf("%d",&n)) {

if (1<=n && n<=MAXN) break;

}

}

y=0 ;for (x=0;x<=n+1;x++) m[y][x]=1;

y=n+1;for (x=0;x<=n+1;x++) m[y][x]=1;

x=0 ;for (y=0;y<=n+1;y++) m[y][x]=1;

x=n+1;for (y=0;y<=n+1;y++) m[y][x]=1;

for (y=1;y<=n;y++) {

for (x=1;x<=n;x++) {

m[y][x]=0;

}

}

x=1;

y=1;

k=0;

d='D';

while (1) {

k++;

if (k>n*n) break;

m[y][x]=k;

switch (d) {

case 'D':

if (0==m[y+1][x]) y++;

else {x++;d='R';}

break;

case 'R':

if (0==m[y][x+1]) x++;

else {y--;d='U';}

break;

case 'U':

if (0==m[y-1][x]) y--;

else {x--;d='L';}

break;

case 'L':

if (0==m[y][x-1]) x--;

else {y++;d='D';}

break;

}

}

for (y=1;y<=n;y++) {

for (x=1;x<=n;x++) {

printf("%4d",m[y][x]);

}

printf("\n");

}

}