Structure2

#include<stdio.h>
#include<conio.h>
#include<alloc.h>
typedef struct { int id;
char name[20];
int salary;
}EMP;

void input(EMP*,int n);
void output(EMP*,int n);
void update(EMP*,int n);
void main()
{ EMP *employee;
int n;
printf("input n: ");
scanf("%d",&n);
employee=(EMP*)calloc(n,sizeof(EMP));
input(employee,n);
output(employee,n);
puts("After updating");
update(employee,n);
output(employee,n);
}
void update(EMP *e,int n)
{ int i,id;
printf("update by id: ");
scanf("%d",&id);

for(i=0;i<n;i++)
{  if(e[i].id==id)
do{puts("1: update id");
puts("2: update name");
puts("3: update salary");
switch(getch())
{ case '1':printf("New id: ");
scanf("%d",&e[i].id);
break;
case '2':printf("New name: ");
fflush(stdin);
gets(e[i].name);
break;
case '3':printf("New salary: ");
scanf("%d",&e[i].salary);
break;
}
puts("Press <Y> to update other field");
}while(getch()=='Y');
}
}
void input(EMP *e,int n)
{  int i;
for(i=0;i<n;i++)
{ printf("id: ");
scanf("%d",&e[i].id);
printf("name: ");
fflush(stdin);
gets((e+i)->name);
printf("salary: ");
scanf("%d",&(e+i)->salary);
}
}
void output(EMP *e,int n)
{ puts("Id\tName\tSalary");
for(int i=0;i<n;i++)
{ printf("%d\t",e[i].id);
printf("%s\t",e[i].name);
printf("%d\n",e[i].salary);
}
}

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