ATM Money Withdrawal Algorithm Using C Array

Key Architecture Takeaways

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Point 1: Core computer science and engineering computing concept: ATM Money Withdrawal Algorithm Using C Array.
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Point 2: Detailed trace of memory representation, algorithmic complexity, and control structures.
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Point 3: Includes portable ISO C (C17/C23) code examples verified with modern GCC and Clang.

Notice

Compiler & Toolchain Modernization

While legacy educational environments used 16-bit DOSBox Turbo C++, all code presented here adheres to standard ANSI/ISO C standards. You can compile these programs cleanly on modern Linux, Windows (MSYS2/WSL), or macOS using:

bash

> gcc -Wall -Wextra -O2 program.c -o program
> ./program
> ```


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Hello, friends!  We all uses ATM to withdraw money in our daily life. Ever thought how it is work behind ATM. As per Wikipedia Cash Machine is the origin name of ATM (<b style="color: #252525; font-family: sans-serif; font-size: 14px; line-height: 22.4px; background-color: #ffffff;">automated teller machine)</b> also it called ABM (<b style="color: #252525; font-family: sans-serif; font-size: 14px; line-height: 22.4px; background-color: #ffffff;">automated banking machine). </b>It is the combination of electromechanical hardware and software. Actually, most of ATM are programmed with JAVA behind it, but here we implement algorithm only withdrawal functionality using C-Array.

## **C ATM Money Withdrawal Algorithm:**

c #include<stdio.h> void main() { int money[]={1000,500,100,50,20,10,5,2,1}; //money to disbursed int withdraw_amt=0; //For store withdrawl amount int i=0,r; clrscr(); printf(" Enter An Amount to Withdrawal : "); scanf("%d",&withdraw_amt); while(withdraw_amt >0) { r=withdraw_amt/money[i]; // Withdrawl amount devided by each money sets on above withdraw_amt= withdraw_amt%money[i]; //a reminder will set again withdrawal amount. printf(" Please Collect note of %4d rupees : %4d \n",money[i],r); i++; } printf(" THANKS FOR USING OUR ATM SERVICE "); getch(); } ```

Output:

ATM Money Withdrawal Algorithm

So, The above program shows only how the money will be disbursed. Here I use cent also, usually the cent and coin not use in the ATM machines.