notes/education/software development/ECE1400/Chapter.md

2. The following program fragments illustrate the logical operators. Show the output produced by each, assuming that i, j, and k are int variables.

a. i = 10; j = 5;

printf("%d", !i < j);

// Expected output: `1`, because `!i` evaluates to 0, and 0 is less than 5, so that expression evaluates to true, or 1.

b. i = 2; j = 1;

printf("%d", !!i + !j);

// Expected output: `1`, because !!2 evaluates to 1, and !j evaluates to 0

c. i = 5; j = 0; k = -5;

printf("%d", i && j || k);

// Expected output: `1`, because i && j should evaluate to 0, but `0 || 1` should evalulate to true.

d. i = 1; j = 2; k = 3;

printf("%d", i < j || k);