Question

这段代码用dev-c++调试时提示 Program received signal SIGSEGV, Segmentation fault.请大神帮忙看看问题

// 读进一些字符串并对它们排序。
#include <stdio.h>
#include <string.h>

#define SIZE 81
#define LIM 20
#define HALT " "
void stsrt(char *strings[], int num);

int main(void)
{
char input[LIM][SIZE];
char *ptstr[LIM];
int ct = 0;
int k;

printf("Input up to %d lines, and I will sort them. \n", LIM);
printf("To stop, press the Enter key at a line's start.\n");
while(ct < LIM && gets(input[ct]) != NULL && input[ct][0] != '\0')
{
ptstr[ct] = input[ct];
ct++;
}
stsrt(ptstr, ct);
puts("\nHere's the sorted list: \n");
for(k = 0; k < ct; k++);
puts(ptstr[k]);

return 0;
}

void stsrt(char *strings[], int num)
{
char *temp;
int top, seek;

for(top = 0; top < num-1; top++)
for(seek = top + 1; seek < num; seek++)
if(strcmp(strings[top], strings[seek]) > 0)
{
temp = strings[top];
strings[top] = strings[seek];
strings[seek] = temp;
}
}

Answer 1

for(k = 0; k < ct; k++); //多了个分号
puts(ptstr[k]);