C Essentials Part 1 Module 3 Test Access
She corrected it:
The terminal glowed green: .
One last question: "Which statement correctly reads a single character and ignores whitespace?" She chose: scanf(" %c", &ch); — the space before %c consumes newline or space. c essentials part 1 module 3 test
#include <stdio.h> int main() { int a, b, sum; scanf("%d %d", &a, &b); sum = a + b; if (sum > 100) printf("HIGH"); if (50 <= sum <= 100) printf("MEDIUM"); else printf("LOW"); return 0; }
if (sum > 100) printf("HIGH"); else if (sum >= 50 && sum <= 100) printf("MEDIUM"); else printf("LOW"); Run again. 20 40 → LOW . 45 30 → MEDIUM . 80 30 → HIGH . Perfect. She corrected it: The terminal glowed green:
But the final test question was trickier: "What is the output of this code?" int x = 5; int y = 2; float z = x / y; printf("%f", z); She almost answered 2.5 , but caught herself. Integer division truncates. x / y = 2 , then stored as 2.000000 . The correct output: 2.000000 .
Then she remembered — Module 3’s hidden trap: 50 <= sum <= 100 is parsed as (50 <= sum) <= 100 . (50 <= 60) is 1 , then 1 <= 100 is always true. So the second if always runs, and if the first if fails, the else prints too. 20 40 → LOW
She hit . Input: 75 30 → Sum = 105. Output: HIGH . Good. Input: 20 40 → Sum = 60. Output: MEDIUMLOW — Error!
She stared. Why both "MEDIUM" and "LOW"?
Elena stared at the blinking cursor on her vintage terminal. She was one step away from passing Module 3 of her C programming certification. The test simulation presented a problem: "Write a program that reads two integers. If their sum is greater than 100, print 'HIGH'. If the sum is between 50 and 100 inclusive, print 'MEDIUM'. Otherwise, print 'LOW'." She smirked. Simple. She quickly typed: