/* Bai tap 9_4 - Tim chuoi doi xung */

#include <stdio.h>

#include <conio.h>

#include <string.h>

void main()

{

char chuoi[125];

int i = 0, j;

printf("

Nhap vao chuoi kiem tra : ");

gets(chuoi);

j = strlen(chuoi) - 1;

while(chuoi[i++] == chuoi[j--]);

if (--i>=++j)

printf("Chuoi doi xung");

else

printf("Chuoi khong doi xung");

getch();

}