Logical operators

Read first Task 12

&& means both, || means either, ! flips.

Definition and example

Logical operators is the focus of this lesson. && means both, || means either, ! flips. The task asks you to apply that idea in a small example: Which operator means both conditions must be true. Before you run the code, predict what should happen. Then Inspect the program output and the compiler message if it fails and compare it with your prediction. If the result differs, change one relevant line and run it again. Testing one change at a time makes the cause of a result easier to understand.

C++ 1 automatic check Section 2 · Decisions and repetition

Code editor Ctrl + Enter runs

// TASK logical-operators-02: Which operator means both conditions must be true?
// STEPS: Read the explanation. Change one relevant line at a time, then run the code and compare the result with the check on the right.
#include <iostream>
#include <string>
using namespace std;

int main() {
    int score = 85;
    int attendance = 90;
    string result = (score >= 60 && attendance >= 75) ? "TODO" : "pending";
    cout << result << endl;
    return 0;
}

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Checks on this task:

The program output must match “certified”.

The task and step-by-step instructions are written as comments at the top of the editor. Change one relevant line, run it, and compare the result with these checks.

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Logical operators

Logical operators

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