Question

What is the result of the following code?

res = 0
i = 0
while ( i < 5 ):
-> i += 1
-> res += i
-> if (res > 6):
--> break
print (res)

Answer 1

The code runs a loop which increments res by the current value of i until res is greater than 6, at which point it exits the loop and prints the current value of res, which is 6.

Step-by-step explanation:

The given code initializes a variable res to 0 and another variable i to 0. It then enters a while loop that continues to execute as long as i is less than 5. Inside the loop, i is incremented by 1 first, and then res is incremented by the new value of i. After each increment of res, a condition checks whether res is greater than 6. If it is, the loop is exited immediately using the break statement. Finally, the value of res is printed.

Now, iterating through the loop:

• First loop iteration: i = 1, res = 1
• Second loop iteration: i = 2, res = 3 (1+2)
• Third loop iteration: i = 3, res = 6 (3+3)
• Fourth loop iteration: i = 4, res would be 10 (6+4), but since res > 6, the loop breaks.

Therefore, the loop breaks during the fourth iteration, and the last value of res before breaking is 6. Hence, when the print statement is executed, the output will be 6.