C语言给字符串冒泡排序

Question

#define N 5
#define M 10
#include<stdio.h>
#include<string.h>
int main()
{
	int i,j;
	char *t=NULL;
	char str[N][M]={"monitor","landscape","paddle","partition","current"};
	for(i=0;i<N;i++)
		for(j=0;j<N;j++){ 
			if(strcmp(str[j],str[j+1])>0){
				t=str[j];
				strcpy(str[j],str[j+1]);
				strcpy(str[j+1],t);
			}
		} 
		
	for(i=0;i<N;i++)
		puts(str[i]);
	return(0);
}

请问怎么用指针将字符串交换顺序？

Answer 1

#define N 5
#define M 10
#include<stdio.h>
#include<string.h>
int main()
{
	int i,j;
	char *t=NULL;
	char *str[N]={"monitor","landscape","paddle","partition","current"};
	for(i=0;i<N-1;i++)
		for(j=0;j<N-i-1;j++){
			if(strcmp(str[j],str[j+1])>0){
				t=str[j];
				str[j] = str[j+1];
				str[j+1] = t;
			}
		}

	for(i=0;i<N;i++)
		puts(str[i]);
	return(0);
}