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  1. // Online C compiler to run C program online
  2. #include <stdio.h>
  3. #include<stdlib.h>
  4. #include<string.h>
  5. struct Stack{
  6.     int capacity;
  7.     int top;
  8.     char *items;
  9. }s;
  10. struct Stack *  createStack(int cap){
  11.     struct Stack *s;
  12.     s= (struct Stack *)malloc(sizeof(struct Stack));
  13.     s->capacity = cap;
  14.     s->items = (char *)malloc((cap) *sizeof(char));
  15.     s->top=-1;
  16.     return s;
  17. }
  18. void pop(struct Stack *s){
  19.     if(s->top==-1){
  20.         printf("\nStack is empty");
  21.         return;
  22.     }
  23.     printf("%c",s->items[s->top]);
  24.     s->top--;
  25. }
  26. void push(struct Stack *s,int ele){
  27.     if(s->top == s->capacity-1){
  28.         printf("Stack is full");
  29.         return ;
  30.     }
  31.     s->top++;
  32.     s->items[s->top]=ele;
  33. }
  34.  
  35. int main() {
  36.     char s[100],rev1[100],rev2[100];
  37.     struct Stack *stack;
  38.     printf("Enter String: ");
  39.     fgets(s,sizeof(s),stdin);
  40.     int len =strlen(s);
  41.     stack = createStack(len);
  42.     printf("Orignal string :%s",s);
  43.     printf("Reversed using strrev : %s",s);
  44.     int i=0;
  45.     for(i=0;i<strlen(s)-1;i++){
  46.         push(stack,s[i]);
  47.     }
  48.     printf("\nReversed Using stack: ");
  49.     while(stack->top>=0){
  50.         pop(stack);
  51.     }
  52.  
  53.     return 0;
  54. }
Success #stdin #stdout 0.01s 5320KB
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stdin
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Standard input is empty
stdout
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Enter String: Orignal string :ɟX�Reversed using strrev : ɟX�
Reversed Using stack: ��X��
https://ideone.com/07CbxZ
language:
C (gcc 8.3)
created:
23 hours ago
visibility:
public

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