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krahets 2023-06-06 01:55:55 +08:00
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chapter_stack_and_queue/deque.md
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@ -2499,11 +2499,7 @@ comments: true
return deque->queSize == 0; return deque->queSize == 0;
} }
/* 判断双向队列是否为空 */ /* 计算环形数组索引 */
bool empty(arrayDeque *deque) {
return deque->queSize == 0;
}
int dequeIndex(arrayDeque *deque, int i) { int dequeIndex(arrayDeque *deque, int i) {
// 通过取余操作实现数组首尾相连 // 通过取余操作实现数组首尾相连
// 当 i 越过数组尾部时，回到头部 // 当 i 越过数组尾部时，回到头部