C语言实现数组转置

#include<stdio.h>
#define N 3
int main(){
	int a[][N]={1,2,3,4,5,6,7,8,9};
	void print(int [][N]);
	void advert(int [][N]);
	printf("原矩阵为:\n");
	print(a);
	advert(a);
	printf("转置后的矩阵为:\n");
	print(a);
}
void print(int a[][N]){
	int i,j;
	for(i=0;i<N;i++){
		for(j=0;j<N;j++)
			printf("%3d",a[i][j]);
		putchar('\n');
	}
}
void advert(int a[][N]){
	int i,j,t;
	for(i=0;i<N;i++)
		for(j=i+1;j<N;j++){
			t=a[i][j];
			a[i][j]=a[j][i];
			a[j][i]=t;
		}
}