ATM Withdrawal System - AcadLink Learn

Problem Statement

Ravi has a savings account in a bank and frequently uses the ATM to withdraw money. To ensure customers always maintain a minimum amount in their account, the bank has introduced the following rules:

The withdrawal amount must not exceed the available account balance.
A minimum balance of ₹1000 must remain in the account after the withdrawal.

Write a C program that accepts choices from the user for banking transactions: check balance, withdrawal amount, and deposit amount.

Solution

#include <stdio.h>
#include <stdlib.h>

int main() {
    static float balance = 1000.0f;
    float amount;
    int choice;

    do {
        printf("Select your choice 1.Check Balance 2.Deposit 3.Withdrawal 4.Exit\n");
        scanf("%d", &choice);

        switch(choice) {
            case 1:
                printf("Your Current balance is: %.2f\n", balance);
                break;
            case 2:
                printf("Enter Deposit Amount: ");
                scanf("%f", &amount);
                if(amount > 0) {
                    balance = balance + amount;
                    printf("Your Updated balance is: %.2f\n", balance);
                } else {
                    printf("Transaction Failed!\n");
                }
                break;
            case 3:
                printf("Enter Withdrawal Amount: ");
                scanf("%f", &amount);
                if(amount <= balance && (balance - amount) >= 1000) {
                    printf("Withdrawal Successful.\n");
                    balance = balance - amount;
                    printf("Remaining Balance = %.2f\n", balance);
                } else {
                    printf("Transaction Failed!\n");
                }
                break;
            case 4:
                exit(0);
            default:
                printf("Invalid Choice\n");
        }
    } while(1);

    return 0;
}

Input

Output

Your Current balance is: 1000.00