[Warning] pointer to a function used in arithmetic [-Wpointer-arith]
關於這個warning，直譯是將指向函數的指針運用於計算
一開始我不明白，后來經仔細檢查后發現我定義的一個函數，需要的變量是三個int，但我最后在使用函數時，本來應該是judge(x，y，z)的，結果我寫成了judge[x][y][z]，
[Warning] pointer to a function used in arithmetic [-Wpointer-arith]
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指針函數(Pointer Function)和函數指針(Pointer to Function或Function Pointer)
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