Consider carefully the program fragment below: int sum = 0, idx = 0; while (idx <...

 

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Consider carefully the program fragment below: int sum = 0, idx = 0; while (idx < 5) { } sum = sum + idx; idx++; The above loop does at least one unnecessary pass through the body. How can you improve it while not changing the result (the value of sum when the loop ends)? O Initialize the variable sum to 1 rather than 0 O Initialize the variable idx to 1 rather than 0 O Change the while loop condition from idx < 5 to idx < 4 O Change the while loop condition from idx < 5 to idx <= 4 Place the statement idx++; before sum = sum + idx; rather than after it. Consider carefully the program fragment below: int sum = 0, idx = 0; while (idx < 5) { } sum = sum + idx; idx++; The above loop does at least one unnecessary pass through the body. How can you improve it while not changing the result (the value of sum when the loop ends)? O Initialize the variable sum to 1 rather than 0 O Initialize the variable idx to 1 rather than 0 O Change the while loop condition from idx < 5 to idx < 4 O Change the while loop condition from idx < 5 to idx <= 4 Place the statement idx++; before sum = sum + idx; rather than after it.

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