تمرين الآلة الحاسبة بلغة السي

اجابتي

1الصعوبة متوسط 

2 تقريبا 9 ساعات متواصلة أو أكتر

3 أرى أن المدة نسبتها الأكبر استهلكتها في التفكير

4 كل الأفكار التي استخدمتها لم يسبق لي أن فكرت فيها

5 نعم أعدت كتابته من الصفر مرتيين

5 أرى أنه تمرين جيد للمتمكنين من أساسيات اللغة ومن أجاب عليه وهو يعرف الاساسيات فقط للبرمجة أي المبتدئين فلهم مستقبل رهيب في البرمجة في حين أرى أنه مجرد لهو ببعض الحلقات والجمل الشرطية لبعض المحبين القدامى للغة

#include<stdio.h>#include<stdlib.h>#define lengthOfString 100typedef struct operand_s operand_s;struct operand_s{	double theOperand;	char theOperator;	int theDegree;	operand_s *nextOperand;};void intialization_operands(operand_s *myOperands, int nbrOperands){	for (int i = 0; i < nbrOperands; i++)	{		operand_s *newOperand = malloc(sizeof(*newOperand));		newOperand->theOperand = 0;		newOperand->theOperator = ' ';		newOperand->theDegree = 0;		newOperand->nextOperand = myOperands->nextOperand;		myOperands->nextOperand = newOperand;	}}int nmbrOfDigInOper(char *myOperation){	int theNumbre = 0;	for (int i = 0; myOperation != '\0'; i++)	{		if (myOperation >= 48 && myOperation <= 57)		{			theNumbre++;			while (myOperation >= 48 && myOperation <= 57 || myOperation == '.')			{				i++;			}		}	}	return theNumbre;}int first_treatment(char *myOperation, operand_s *myOperands){	int degree = 0, largDegree = 0;	operand_s *temporaryOp = myOperands;	for (int i = 0; myOperation != '\0'; i++)	{		if (myOperation == '(')		{			degree += 2;			if (degree > largDegree)				largDegree = degree;		}		else if (myOperation == ')')		{			degree -= 2;			temporaryOp->theDegree -= 2;		}		else if (myOperation >= 48 && myOperation <= 57)		{			temporaryOp->theDegree = degree;			temporaryOp->theOperand = strtod(&myOperation, NULL);			if (myOperation[i - 2] == '(')				temporaryOp->theOperand *= -1;			while (myOperation >= 48 && myOperation <= 57 || myOperation == '.')			{				i++;			}			i--;		}		else if (myOperation == '*' || myOperation == '/')		{			temporaryOp->theDegree++;			if (temporaryOp->theDegree > largDegree)				largDegree = temporaryOp->theDegree;			temporaryOp->theOperator = myOperation;			temporaryOp = temporaryOp->nextOperand;		}		else if (myOperation == '+' || myOperation == '-')		{			if (myOperation[i - 1] != '(')			{				temporaryOp->theOperator = myOperation;				temporaryOp = temporaryOp->nextOperand;			}		}	}	return largDegree;}void second_treatment(operand_s *myOperands, int largDegree){	operand_s *temporaryOp = myOperands, *operandADelet = NULL;	while (temporaryOp->nextOperand != NULL)	{		if (temporaryOp->theDegree == largDegree)		{			switch (temporaryOp->theOperator)			{			case '*':				temporaryOp->theOperand *= temporaryOp->nextOperand->theOperand;				break;			case '/':				temporaryOp->theOperand /= temporaryOp->nextOperand->theOperand;				break;			case '+':				temporaryOp->theOperand += temporaryOp->nextOperand->theOperand;				break;			case '-':				temporaryOp->theOperand -= temporaryOp->nextOperand->theOperand;				break;			}			temporaryOp->theOperator = temporaryOp->nextOperand->theOperator;			temporaryOp->theDegree = temporaryOp->nextOperand->theDegree;			operandADelet = temporaryOp->nextOperand;			temporaryOp->nextOperand = temporaryOp->nextOperand->nextOperand;			free(operandADelet);		}		else if (temporaryOp->theDegree != largDegree)			temporaryOp = temporaryOp->nextOperand;	}}int main(){	int nmbrOfDig, largDegree;	char theOperation[lengthOfString] = { ' ' };	operand_s *theOperands = malloc(sizeof(*theOperands));	theOperands->theOperand = 0;	theOperands->theOperator = ' ';	theOperands->theDegree = 0;	theOperands->nextOperand = NULL;	scanf("%s", theOperation);	nmbrOfDig = nmbrOfDigInOper((char*)&theOperation);	intialization_operands(theOperands, nmbrOfDig - 1);	largDegree = first_treatment((char*)&theOperation, theOperands);	while (largDegree >= 0)	{		second_treatment(theOperands, largDegree);		largDegree--;	}	printf("%s = %lf\n", theOperation, theOperands->theOperand);	free(theOperands);	return 0;}