What is the output? void WaterTemperatureForCoffee(int temp) { if (temp

Question

What is the output? void WaterTemperatureForCoffee(int temp) { if (temp < 195) { cout << "Too cold."; } else if ((temp >= 195) && (temp <= 205)) { cout << "Perfect temperature."; } else if (temp > 205) { cout << "Too hot."; } } int main() { WaterTemperatureForCoffee(205); WaterTemperatureForCoffee(190); return 0; }

BlackTom AI · Accepted Answer

Cascaded if-else checks determine which cout executes based on the temperature; cout does not append a newline or extra space unless explicitly asked. 1. Relevant knowledge points and concepts - if / else if / else evaluate conditions in order; once one branch is taken, the rest are skipped. - Comparisons: temp < 195, temp >= 195 && temp <= 205, temp > 205. - cout << "text"; writes the text exactly as given; it does not add a newline or space automatically. 2. Step-by-step reasoning for each call - First call: WaterTemperatureForCoffee(205) - Evaluate temp < 195 → 205 < 195 is false. - Evaluate (temp >= 195) && (temp <= 205) → (205 >= 195) is true AND (205 <= 205) is true → the whole condition is true. - Therefore this branch executes: cout << "Perfect temperature."; After executing, the function returns and no further else-if is evaluated. - Second call: WaterTemperatureForCoffee(190) - Evaluate temp < 195 → 190 < 195 is true. - The first if branch executes: cout << "Too cold."; Because it is the first branch, the else-if conditions are skipped. 3. Intermediate steps shown - For 205: 205 >= 195 (true), 205 <= 205 (true) → prints "Perfect temperature." - For 190: 190 < 195 (true) → prints "Too cold." - No newline or space between the two cout outputs, so the two printed strings are concatenated directly. 4. Why the correct answer is correct Because the first call prints "Perfect temperature." and the second prints "Too cold.", with no intervening newline or space, the exact combined output is: Perfect temperature.Too cold. 5. Why the other options are incorrect - "Perfect temperature." only shows the first print and omits the second. - "Too cold." shows only the second print and omits the first. - "Perfect temperature. Too cold." inserts a newline; the code does not print a newline character, so this formatting does not match the actual output. 6. Conclusion The printed output is exactly: Perfect temperature.Too cold. This matches the provided correct answer.

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