Banking Application using C programming

Features of Application 

1.withdrawal
2.Deposit
3.Balance enquiry
4.Exit

#include <stdio.h>
int main()
{
  int bal=2000,dep,wdr,opt,a=1;
  
  do
  {   
  printf("1.withdrawal\n2.Deposit\n3.Balance enquiry\n4.Exit\n");
  scanf("%d",&opt);
 
  switch(opt)
  {
  case 1: printf("Enter the amount to withdrawal:");
  scanf("%d",&wdr);
  if(wdr%100==0)
  {
  if(bal>=wdr)
  {
  bal=bal-wdr;
  printf("Transaction Success\nUpdated Bal:%d",bal);
}
else
{
printf("insufficient balance");
}
 
}
else
{
printf("Enter only multiple of 100's");
}
break;
case 2:
printf("Enter the amount to Deposit:");
  scanf("%d",&dep);
  if(dep%100==0)
  {
  bal=bal+dep;
  printf("Transaction Success\nUpdated Bal:%d",bal);
}
else
{
printf("Enter only multiple of 100's");
}
break;
case 3:printf("your Account balance is: %d",bal);
}
Sleep(2000);
system("cls");
}
while(opt!=4);
printf("\t\tThank you %c %c...",(char)1,(char)1);

}

output:


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