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  1. #include<stdio.h>
  2. #include<stdlib.h>
  3. #include<string.h>
  4. typedef struct nod
  5. {
  6.   int data;
  7.   struct nod *link;
  8. }node;
  9.  
  10. node *head=NULL;
  11. void push(int x)
  12. {   
  13.     node *temp=malloc(sizeof(node));
  14.     if(temp==NULL) { printf("Stackoverflow!!\n"); exit(1); }
  15.     temp->data=x;
  16.     temp->link=head;
  17.     head=temp;
  18.  
  19. }
  20. int pop()
  21. {   if (head==NULL) { printf("Stackunderflow!!\n"); exit(1); }
  22.     node *temp;
  23.     temp=head;
  24.     head=head->link;
  25.     int popel=temp->data;
  26.     free(temp);
  27.     temp=NULL;
  28.     return popel;
  29. }
  30. int main(int argc,char*argv[])
  31. {
  32.     FILE *mainfile;
  33.     mainfile = fopen(argv[1],"r");
  34.     if(mainfile == NULL)
  35.     {
  36.         printf("Failed opening file containing  data \n");
  37.         return 0;
  38.     }
  39.     char pass[10];
  40.    while (fscanf(mainfile,"%s",pass)!=EOF)
  41.      {
  42.         push(atoi(pass));
  43.      }
  44.      int ans=1;
  45.     while(ans)
  46.     {   
  47.       printf("Enter 1 to pop 0 to stop the operation\n");
  48.          scanf("%d",&ans);
  49.          if(ans)
  50.       printf("The data popped is : %d \n",pop());    
  51.  
  52.     }
  53.     return 0;
  54. }
Success #stdin #stdout 0s 5508KB
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stdin
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Standard input is empty
stdout
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Failed opening file containing  data
https://ideone.com/TnKWJy
I want pseudo code
language:
C (gcc 8.3)
created:
1 year ago
visibility:
public

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