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learn through sufferingC Language
learn through sufferingC Language
Practice Problem 5
Fundamentals
Question 1-1
What do you call naming the memory where numbers are stored?
Question 1-2
What do you call storing numbers in a specific location?
Question 1-3
What do you call increasing the numbers at the aforementioned location by one?
Program reading
How will the program be displayed when executed?
Question 2-1
#include <stdio.h>
int main(void)
{
int x, y;
x = 10;
y = x * 10 + 20;
printf("%5d\n", y);
return 0;
}Program Manual
Question 3-1
1本198円の清涼飲料Water1本と、1本138円の牛乳2本を購入し、
Please give me the change from a thousand yen note.
However, a 5% consumption tax will be added, and the change will be rounded to the nearest whole number.
Consumers are free to round the consumption tax.
Please give me the change from a thousand yen note.
However, a 5% consumption tax will be added, and the change will be rounded to the nearest whole number.
Consumers are free to round the consumption tax.
descriptive
Question 4-1
"When performing calculations with real numbers and integers, such as 3.14 * 12,"The answer is to be treated as a real number, but briefly explain why.
Fundamentals (Answer Key)
Solution 1-1
Variable declaration
"Variables alone are also considered correct."
Solution 1-2
Assignment
Solution 1-3
increment
Program Reading (Solution Example)
Solution 2-1
120
"Since it's a %5d format specifier, there will be a two-digit space in the preceding part."
Program Documentation (Example Solution)
Solution 3-1
#include <stdio.h>
int main(void)
{
int juice, milk, money, payment, change;
double tax;
juice = 198;
milk = 138;
money = 1000;
tax = 1.05;
payment = (int)((juice + milk * 2) * tax);
change = money - payment;
printf("%d円\n", change);
return 0;
}
Solution 2-1
503 yen
You can solve it without variables, but using them will make changes easier later.
"Points will be deducted if you forget to cast."
"Answers given as real numbers will also be penalized."
Depending on the calculation method, the answer may vary slightly.
descriptive (answer)
Solution 4-1
To prevent decimal numbers from being truncated.
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Learning C language through suffering (Kushi C) is
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