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  1. #include<stdio.h>
  2. #include<string.h>
  3. #define SIZE 30
  4. struct stack
  5. {
  6.     int top;
  7.     char st[SIZE];
  8. }s;
  9.  
  10. void push(char x)
  11. {
  12.     if(s.top==SIZE-1)printf("Stack is full");
  13.     else s.st[++s.top]=x;
  14. }
  15.  
  16. int pop()
  17. {
  18.     if(s.top==-1)
  19.     {
  20.         printf("Stack is empty");
  21.         return (int)'\0';
  22.     }
  23.     else
  24.     {
  25.         char x=s.st[s.top];
  26.         s.top--;
  27.         return (int)x;
  28.     }
  29. }
  30.  
  31. int main()
  32. {
  33.     int size,i=0;
  34.     s.top=-1;
  35.     printf("Enter size:");
  36.     scanf("%d",&size);
  37.     char string[size],x;
  38.     printf("Enter string:");
  39.     //scanf("%s",string);
  40.     for(i=0;i<size;i++)
  41.     {
  42.    		scanf("%c",string[i]);
  43.     }
  44.     //gets(string);
  45.     /*while(x!='\0')
  46.     {
  47.     	x=getchar();
  48.     	string[i]=x;
  49.     	i++;
  50.     }*/
  51.     int l=strlen(string);i=0;
  52.     while(i<l)
  53.     {
  54.         push(string[i]);
  55.         i++;
  56.     }
  57.     i=0;
  58.     char string2[l];
  59.     while(i<l)
  60.     {
  61.         string2[i]=(char)pop();
  62.         i++;
  63.     }
  64.     printf("\nReversed text=%s",string2);
  65.     if(strcmp(string,string2)==0)printf("\nText is palindrome\n");
  66.     else printf("\nText is not palindrome\n");
  67.     return 0;
  68. }
Success #stdin #stdout 0s 9432KB
comments (?)
stdin
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7
abc cbb
stdout
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Enter size:Enter string:
Reversed text=
Text is palindrome
https://ideone.com/gWbqIy
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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