回答編集履歴
1
for を while に変更
test
CHANGED
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@@ -16,7 +16,7 @@
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else if (n == 2) r = n2;
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-
else
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+
else while (--n > 1) r = n1 + n2, n1 = n2, n2 = r;
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return *result = r;
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