'commit'

2025-08-30 18:35:01 +08:00
commit 1f397eca87
6258 changed files with 1487241 additions and 0 deletions
--- a/C++课程/待整理知识/BFS算法/迷宫BFS.cpp
+++ b/C++课程/待整理知识/BFS算法/迷宫BFS.cpp
@@ -0,0 +1,83 @@
+#include<cstdio>
+#include<iostream>
+#define N 5
+using namespace std;
+
+struct note 
+{
+  int x,y,pre;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>꣬ǰһ<C7B0><D2BB><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD>λ<EFBFBD><CEBB>
+} que[100];
+
+int maze[N][N];
+int Nx[4]= {1,-1,0,0}; //x<><78><EFBFBD>仯<EFBFBD><E4BBAF><EFBFBD><EFBFBD> 
+int Ny[4]= {0,0,-1,1}; //y<><79><EFBFBD>仯<EFBFBD><E4BBAF><EFBFBD><EFBFBD> 
+int start=0,end=1;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
+void print(int s) {
+	if(que[s].pre!=-1) {
+		//<2F>ݹ<EFBFBD><DDB9><EFBFBD><EFBFBD><EFBFBD>
+		print(que[s].pre);//<2F><><EFBFBD>ݲ<EFBFBD><DDB2><EFBFBD>ǰһ<C7B0><D2BB><EFBFBD><EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD>ݹ<EFBFBD>
+		cout<<"("<<que[s].x<<", "<<que[s].y<<")"<<endl;
+	}
+}
+
+//<2F><><EFBFBD><EFBFBD><EFBFBD>Ż<EFBFBD><C5BB>㷨 
+void bfsMaze(int x,int y) {
+	que[start].pre=-1;
+	que[start].x=x;
+	que[start].y=y;
+	
+	//<2F><><EFBFBD>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵĻ<DDB5> 
+	while(start<end) {
+		//̽<><CCBD><EFBFBD>ĸ<EFBFBD>λ<EFBFBD><CEBB> 
+		for(int i=0; i<4; i++) {
+			int a=Nx[i]+que[start].x;
+			int b=Ny[i]+que[start].y;
+			if(a<0 || b<0 || a>=N || b>=N || maze[a][b])//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǽ
+				continue;
+			else {
+				maze[a][b]=-1;//<2F><><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD>ʹ<EFBFBD>
+				//<2F><><EFBFBD><EFBFBD>
+				que[end].pre=start;
+				que[end].x=a;
+				que[end].y=b;
+				end++;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С
+			}
+			//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
+			if(a==N-1 && b==N-1)
+				print(start);
+		}
+		start++;
+	}
+
+}
+int main() {
+//		<09><><EFBFBD><EFBFBD><EFBFBD>Թ<EFBFBD><D4B9><EFBFBD>ͼ
+//    for(i=0;i<N;i++)
+//        for(j=0;j<N;j++)
+//            scanf("%d",&maze[i][j]);
+
+	int i,j;
+	//<2F><><EFBFBD>ı<EFBFBD><C4B1>ļ<EFBFBD><C4BC>ж<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>
+	FILE *fpRead=fopen("input.txt","r");  //<2F><><EFBFBD><EFBFBD>"r"<22>Ǳ<EFBFBD>ʾ <20><>
+	if(fpRead==NULL) {
+		return 0;
+	}
+	for( i=0; i<5; i++) {
+		for(j=0; j<5; j++) {
+			fscanf(fpRead,"%d",&maze[i][j]);
+			printf("%d ",maze[i][j]);
+		}
+		printf("\n");
+	}
+
+	//<2F><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
+	cout<<"(0, 0)"<<endl;
+	bfsMaze(0,0);
+	cout<<"("<<N-1<<", "<<N-1<<")"<<endl;
+
+	return 0;
+}
+
+