C menu driven program for adding and displaying students information such as Roll-number, Name, Phone Number, Marks etc using structure

Assignment -1 Data Structures & Algorithms.c

/*
    todo : C menu driven program for adding and displaying students information such as Roll-number, Name, Phone Number, Marks etc using structure
    ?Assignment -1 Data Structures & Algorithms
*/
  #include<stdio.h>
  #include<stdlib.h>
  //!structure declarations
  struct details
  {
       char name[30];
       int roll_no;
       int phone_no;
       int marks;
  }student[5];
  // All the function of our program.
  void search_roll(int x)
  {
       int id,i;
       printf("\nEnter Student's Roll no to be Searched : ");
       scanf("%d",&id);
       printf("☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻\n");
       for(i=0;i<x;i++)
       {
            if(student[i].roll_no==id)
            {
                 printf("\nName        : %s",student[i].name);
                 printf("\nRoll no     : %d",student[i].roll_no);
                 printf("\nPhone no    : %d",student[i].phone_no);
                 printf("\nMarks       : %d\n",student[i].marks);
            }
       }
  }
  void search_phone(int x)
  {
       int id,i;
       printf("\nEnter Student's Phone no to be Searched : ");
       scanf("%d",&id);
       printf("☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻☻\n");
       for(i=0;i<x;i++)
       {
            if(student[i].phone_no==id)
            {
              printf("\nName        : %s",student[i].name);
              printf("\nRoll no     : %d",student[i].roll_no);
              printf("\nPhone no    : %d",student[i].phone_no);
              printf("\nMarks       : %d\n",student[i].marks);
            }
       }
  }
  void display(int x)
  {
       int i;
       printf("\nList of All Students:\n");
       printf("-------------------------------\n");
       printf("Name \tRollno Phone_no     Marks   \n");
       printf("--------------------------------\n");
       for(i=0;i<x;i++)
       {
            printf("%s\t  %d\t  %d\t %d\n",student[i].name,student[i].roll_no,student[i].phone_no,student[i].marks);
       }
       printf("\n");
  }
//main function
int main()
  {
       int n,i,ch;
       printf("**How Many Student's Record You Want to Add**\nEnter Limit  : ");
       scanf("\n %d",&n);
       for(i=0;i<n;i++)
       {
            printf("-----------------------------------------");
            printf("\n\tEnter Details of Student=%d",i+1);
            printf("\n-----------------------------------------");
            printf("\nName of the student : ");
            scanf("%s",&student[i].name);
            printf("Roll no of the student   : ");
            scanf("%d",&student[i].roll_no);
            printf("Phone no of the student  : ");
            scanf("%d",&student[i].phone_no);
            printf("Marks of the student  : ");
            scanf("%d",&student[i].marks);

       }
       while(1)
       {
            printf("-----------------------------------------\n");
            printf("☺☺☺☺☺------Main Menu------☺☺☺☺☺\n");
            printf("-----------------------------------------");
            printf("\n 1:Search Student by Roll no");
            printf("\n 2:Search Student by Phone no");
            printf("\n 3:List of All Students");
            printf("\n 4:Exit");
            printf("\n----------------------------------------\n");
            printf("Enter Your Choice : ");
            scanf("\n %d",&ch);
            switch(ch)
            {
                 case 1: search_roll(n);
                 break;
                 case 2: search_phone(n);
                 break;
                 case 3: display(n);
                 break;
                 case 4: exit(0);
                 break;
            }
       }
       return 0;
  }