aoa
navila this cod has 4 compile errors.
do you know how can we make a correct solution
On Tue, Nov 8, 2011 at 9:14 PM, mc100402220 Navila Akam <mc100402220@vu.edu.pk> wrote:
# include <iostream.h># include <stdlib.h>using namespace std;struct student{char student_name[30];char ID_NO[20];struct student* previous;struct student* next;};void Menu();void Show_List(struct student*);struct student* Add_Student(char [], char [], struct student*);struct student* Erase_Student(char [], struct student*);int main(void){char student_name[30];char ID_NO[20];struct student* first = NULL;struct student* node0 = NULL;int x = 0;int opt;Menu();for(;{cout<<"\n1- Enter student information:";cout<<"\n2- Search Students by ID:";cout<<"\n3- Search Students by name:";cout<<"\n4- Delete Students information:";cout<<"\n5- Print all students:";cout<<"\n6- Quit:\n";cin>>opt;switch(opt){case 1:cout<<"\nStudent ID:";cin>>ID_NO;cout<<"\nStudent Name:";cin>>student_name;node0 = Add_Student(student_name, ID_NO , first);first = node0;break;case 5:Show_List(first);break;default:cout<<"\nRecord not found\n";Menu();break;case 6:return 0;case 3:cout<<"Enter the name:";cin>>student_name;Show_List(first);case 2:cout<<"Enter the ID:";cin>>ID_NO;Show_List(first);}}cin>>x;}void Menu(){}void Show_List(struct student* firstNode){struct student* firstNodeCopy = firstNode;int number = 0;if(firstNode == NULL)cout<<"\nThe list is empty.\n";cout<<"Students ID:"<<"\t\t Students Name";cout<<"\n-------------"<<"\t\t --------------";while(firstNodeCopy){printf(" \t\t", ++number, firstNodeCopy->student_name,"\t");printf("\n%s \t\t\t%s\n", firstNodeCopy->ID_NO);firstNodeCopy = firstNodeCopy->next;}}struct student* Add_Student(char name_1[], char ID[], struct student* firstNode){struct student* start = firstNode;struct student* last = NULL;struct student* addNode = (struct student*) malloc(sizeof(struct student));if(firstNode == NULL){firstNode = (struct student*) malloc(sizeof(struct student));strcpy(firstNode->student_name, name_1);strcpy(firstNode->ID_NO, ID);firstNode->next = NULL;firstNode->previous = NULL;return firstNode;}else{strcpy(addNode->student_name, name_1);strcpy(addNode->ID_NO, ID);while(start){if(strcmp(addNode->student_name, start->student_name) > 0){if(start->next == NULL){start->next = addNode;addNode->previous = start;addNode->next = NULL;return firstNode;}else{last = start;start = start->next;}}if(strcmp(addNode->student_name, start->student_name) < 0){if(last == NULL){addNode->next = start;start->previous = addNode;return addNode;}else{addNode->next = start;addNode->previous = last;last->next = addNode;start->previous = addNode;return firstNode;}}if(strcmp(addNode->student_name, start->student_name) == 0){addNode->next = start;start->previous = addNode;return addNode;}else{addNode->next = start;addNode->previous = last;last->next = addNode;start->previous = addNode;return firstNode;}}if(start->next == NULL){start->next = addNode;addNode->previous = start;addNode->next = NULL;return firstNode;}else{last = start;start = start->next;}}}struct student* Erase_Student(char ID[], struct student* firstNode){struct student* start = firstNode;struct student* last = NULL;if(start == NULL){cout<<"\nThe list is empty.\n";return NULL;}else{while(start){if(strcmp(ID, start->ID_NO) == 0){if(last == NULL){start = start->next;return start;}else{last->next = start->next;return firstNode;}}else{last = start;start = start->next;}}cout<<"\nYou entered a WRONG personal ID number to erase!!! Please try again.\n";return firstNode;}}--
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