﻿ C++ : If either of two integers is 30 or if their sum is 30

# C++ Exercises: Check two given integers, and return true if one of them is 30 or if their sum is 30

## C++ Basic Algorithm: Exercise-3 with Solution

Write a C++ program to check two given integers, and return true if one of them is 30 or if their sum is 30.

Sample Solution:

C++ Code :

``````#include <iostream>
using namespace std;

bool test(int x, int y)
{
return x == 30 || y == 30 || (x + y == 30);
}

int main()
{
cout << test(30, 0) << endl;
cout << test(25, 5) << endl;
cout << test(20, 30) << endl;
cout << test(20, 25) << endl;
return 0;
}
``````

Sample Output:

```1
1
1
0
```

Pictorial Presentation: Flowchart: C++ Code Editor:

What is the difficulty level of this exercise?

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## C++ Programming: Tips of the Day

What is the "-->" operator in C/C++?

--> is not an operator. It is in fact two separate operators, -- and >.

The conditional's code decrements x, while returning x's original (not decremented) value, and then compares the original value with 0 using the > operator.

To better understand, the statement could be written as follows:

while( (x--) > 0 )

Ref : https://bit.ly/3kOTBby

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