Program to alphabetically sort names.

Program to alphabetically sort names. If you need help, comment below

#include<stdio.h>

#include<string.h>

void sort(int);

void disp(int);

struct student

       {char name[25];

       }a[50],*ptr;

int main()

       {ptr=a;

        int i,j,n;

        printf("\nEnter the number of students:");

        scanf("%d",&n);

        n++;

        printf("\nEnter the names:\n");

        for(i=0;i<n;i++)

               gets((ptr+i)->name);

        sort(n);

        disp(n);

        return 0;

       }

void sort(int n)

       {

        int i,j;

        char copy[25];

        for(i=0;i<n;i++)

               for(j=0;j<strlen((ptr+i)->name);j++)

                       {if((ptr+i)->name[j]<97)

                               (ptr+i)->name[j]+=32;

                       }

        for(i=0;i<n;i++)

               for(j=0;j<n-1;j++)

                       if(strcmp((ptr+j)->name,(ptr+j+1)->name)>0)

                               {strcpy(copy,(ptr+j)->name);

                                strcpy((ptr+j)->name,(ptr+j+1)->name);

                                strcpy((ptr+j+1)->name,copy);

                               }

       }

void disp(int n)

       {

        int i;

        for(i=0;i<n;i++)

               (ptr+i)->name[0]-=32;

        printf("\n\nThe sorted list is:\n");

        for(i=1;i<n;i++)

               puts((ptr+i)->name);

       }