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Prove the following program is correct: {n > 0} count = n; sum = 0; while count 0 do sum = sum + count; count
Prove the following program is correct:
{n > 0}
count = n;
sum = 0;
while count <> 0 do
sum = sum + count;
count = count - 1;
end
{sum = 1 + 2 + . . . + n}
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