111

2025-11-15 20:25:57 +08:00
parent 5478d0ed37
commit bb4a37acc4
99 changed files with 4315 additions and 16 deletions
@@ -0,0 +1,192 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#define TRUE 1
+#define FALSE 0
+#define queuesize 10
+#define maxvernum 8
+
+typedef struct queue {
+	int elements[queuesize];
+	int front;
+	int rear;
+} queue;
+
+// 入队函数
+int enQueue(queue* q, int value) {
+	if ((q->rear + 1) % queuesize == q->front) {
+		return FALSE;
+	}
+	q->elements[q->rear] = value;
+	q->rear = (q->rear + 1) % queuesize;
+	return TRUE;
+}
+
+// 出队函数
+int deQueue(queue* q, int* value) {
+	if (q->front == q->rear) {
+		return FALSE;
+	}
+	*value = q->elements[q->front];
+	q->front = (q->front + 1) % queuesize;
+	return TRUE;
+}
+
+// 初始化队列
+void initQueue(queue* q) {
+	q->front = 0;
+	q->rear = 0;
+}
+
+// 单链表节点定义
+typedef struct Node {
+	int data;
+	struct Node* next;
+} Node;
+
+// 顶点结点（邻接表头）
+typedef struct VexNode {
+	int vexnum;
+	Node* firstedge;
+} VexNode;
+
+// 邻接表
+typedef struct AdjList {
+	VexNode adjlist[maxvernum];
+	int vexnum;
+	int edgenum;
+} AdjList;
+
+// 定位顶点值
+int locateVex(AdjList* G, int v) {
+	for (int i = 0; i < G->vexnum; i++) {
+		if (G->adjlist[i].vexnum == v) {
+			return i;
+		}
+	}
+	return -1;
+}
+
+// 创建有向图
+void Creategraph(AdjList* g) {
+	int i, k, v1, v2;
+	printf("请输入顶点数和边数(空格分隔)：", maxvernum);
+	scanf_s("%d %d", &g->vexnum, &g->edgenum);
+
+	// 初始化顶点
+	for (i = 0; i < g->vexnum; i++) {
+		g->adjlist[i].vexnum = i + 1;
+		g->adjlist[i].firstedge = NULL;
+	}
+
+	printf("当前顶点为：");
+	for (i = 0; i < g->vexnum; i++) {
+		printf("v%d ", g->adjlist[i].vexnum);
+	}
+	printf("\n");
+
+	// 依次输入每条有向边（弧头 v1 -> 弧尾 v2），用空格分隔
+	for (k = 0; k < g->edgenum; k++) {
+		printf("请输入第%d条有向边的弧头 和 弧尾（用空格分隔）：", k + 1);
+		scanf_s("%d %d", &v1, &v2);
+		int i_idx = locateVex(g, v1);
+		int j_idx = locateVex(g, v2);
+		if (i_idx >= 0 && j_idx >= 0) {
+			// 在 v1 的链表末尾加入 v2
+			Node* bss = (Node*)malloc(sizeof(Node));
+			if (!bss) {
+				printf("内存分配失败");
+				return;
+			}
+			bss->data = v2;
+			bss->next = NULL;
+			if (g->adjlist[i_idx].firstedge == NULL) {
+				g->adjlist[i_idx].firstedge = bss;
+			}
+			else {
+				Node* q = g->adjlist[i_idx].firstedge;
+				while (q->next) q = q->next;
+				q->next = bss;
+			}
+		}
+		else {
+			printf("顶点 %d 或 %d 不存在，边被忽略\n", v1, v2);
+		}
+	}
+
+	// 输出邻接表
+	printf("输出各个顶点的邻接表：\n");
+	for (i = 0; i < g->vexnum; i++) {
+		printf("顶点 v%d", g->adjlist[i].vexnum);
+		Node* p = g->adjlist[i].firstedge;
+		while (p) {
+			printf(" --> v%d", p->data);
+			p = p->next;
+		}
+		printf("\n");
+	}
+}
+
+// 深度优先遍历
+void DFS(AdjList* G, int v, int visited[]) {
+	int i = locateVex(G, v);
+	visited[i] = 1;
+	printf("%d ", G->adjlist[i].vexnum);
+	Node* p = G->adjlist[i].firstedge;
+	while (p != NULL) {
+		int j = locateVex(G, p->data);
+		if (j != -1 && !visited[j]) {
+			DFS(G, p->data, visited);
+		}
+		p = p->next;
+	}
+}
+
+// 广度优先遍历
+void BFS(AdjList* G, int v, int visited[]) {
+	queue q;
+	initQueue(&q);
+	int i = locateVex(G, v);
+	if (i == -1) return;
+	visited[i] = 1;
+	printf("%d ", G->adjlist[i].vexnum);
+	enQueue(&q, v);
+	int w;
+	while (deQueue(&q, &w)) {
+		int k = locateVex(G, w);
+		if (k == -1) continue;
+		Node* p = G->adjlist[k].firstedge;
+		while (p != NULL) {
+			int j = locateVex(G, p->data);
+			if (j != -1 && !visited[j]) {
+				visited[j] = 1;
+				printf("%d ", G->adjlist[j].vexnum);
+				enQueue(&q, p->data);
+			}
+			p = p->next;
+		}
+	}
+}
+
+int main() {
+	AdjList G;
+	Creategraph(&G);
+	int visited[maxvernum] = { 0 };
+	printf("深度优先遍历结果：");
+	for (int i = 0; i < G.vexnum; i++) {
+		if (!visited[i]) { 
+			DFS(&G, G.adjlist[i].vexnum, visited);
+		}
+	}
+	printf("\n");
+
+	for (int i = 0; i < maxvernum; i++) visited[i] = 0;
+	printf("广度优先遍历结果：");
+	for (int i = 0; i < G.vexnum; i++) {
+		if (!visited[i]) {
+			BFS(&G, G.adjlist[i].vexnum, visited);
+		}
+	}
+
+	return 0;
+}
@@ -0,0 +1,31 @@
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@@ -0,0 +1,131 @@
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