Factorials and Powers of Two(1500 二進位制列舉 dfs)
1為最高階，15為最低階。
| 優先順序 | 結合性 | 運算子 | 備註 |
|---|---|---|---|
| 1 | 左結合 | () [] -> . |
圓括號 下標運算子 指向結構體成員運算子 結構體成員運算子 |
| 2 | 右結合 | ! ~ ++ -- + - (型別) * & sizeof |
邏輯非運算子 按位取反運算子 字首增量運算子 字首減量運算子 正號運算子 負號運算子 型別轉換運算子 指標運算子 地址運算子 長度運算子 |
| 3 | 左結合 | * / % |
乘法運算子 除法運算子 取餘運算子 |
| 4 | 左結合 | + - |
加法運算子 減法運算子 |
| 5 | 左結合 | << >> |
左移運算子 右移運算子 |
| 6 | 左結合 | < <= > >= |
關係運算符 |
| 7 | 左結合 | == != | 等於運算子 不等於運算子 |
| 8 | 左結合 | & | 按位與運算子 |
| 9 | 左結合 | ^ | 按位異或運算子 |
| 10 | 結合性 | | | 按位或運算子 |
| 11 | 左結合 | && | 邏輯與運算子 |
| 12 | 左結合 | || | 邏輯或運算子 |
| 13 | 右結合 | ? : | 條件運算子 |
| 14 | 右結合 | = += -= *= /= %= &= ^= |= <<= >>= |
賦值運算子 |
| 15 | 左結合 | , | 逗號運算子 |
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