实现

level1/p01_runningLetter/main.c

@@ -0,0 +1,42 @@
+#include <stdio.h>  
+#include <stdlib.h>  
+#include <windows.h>  
+/* run this program using the console pauser or add your own getch, system("pause") or input loop */
+
+int main(int argc, char *argv[]) {
+  int a,b;  
+    a = 0;
+	while(1){
+		//�������� 	
+	    while (a<=79)  
+	    {  
+	        system ("cls");  
+	        b = 1;  
+	        while (b<=a)  
+	        {  
+	            printf(" ");  
+	            ++b;  
+	        }  
+	        printf("H");  
+	        Sleep(100);  
+	        ++a;  
+	    } 
+	    a--;
+		//��������
+		while (a> 0)  //���ʹ�ô��ڵ��ڣ������ڿ�ͷ���������0�ո��H������ͣ��ʱ��䳤 
+	    {  
+	        system ("cls"); 
+			b = 1;
+	        while (b<=a)  
+	        {  
+	            printf(" ");  
+	            ++b;  
+	        }  
+	        printf("H");  
+	        Sleep(100);  
+	        --a;  
+	    } 
+	}
+    system("pause");  
+    return 0;  
+}  

level1/p02_isPrime/main.c

@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <stdlib.h>
+#define MIN_PRIME 2
+/* run this program using the console pauser or add your own getch, system("pause") or input loop */
+
+int main(int argc, char *argv[]) {
+
+	/*input*/
+	printf("Please input a number\n");
+	int number;
+	scanf("%d",&number);
+
+	/*judgement*/
+	int i;
+	for(i=MIN_PRIME;i<number;i++){
+		if(number==MIN_PRIME){
+			goto is_prime;
+		}
+		else if(number%i!=0){		
+			continue;
+		}
+		else{
+			goto is_not_prime;
+		}
+	}
+
+	/*print*/
+is_prime:
+	printf("%d is a prime.\n",number);
+	return 0;
+is_not_prime:
+	printf("%d is not a prime.\n",number);	
+	return 0;
+}

level1/p03_Diophantus/main.c

@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+int main() {
+    for(float FatherAge=1;FatherAge<200;FatherAge++){
+        if(FatherAge/6+FatherAge/12+FatherAge/7+5+FatherAge/2+4==FatherAge){
+            printf("%f\n",FatherAge-4);
+        }
+    }
+    return 0;
+}

level1/p04_ narcissus/p04_ narcissus.c

@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+/* run this program using the console pauser or add your own getch, system("pause") or input loop */
+
+int main(int argc, char *argv[]) {
+	int number;
+	int hundred;
+	int ten;
+	int one;
+	int target;
+
+	number = 100;
+	while(number<=999)
+	{
+		hundred = number/100;
+		ten = (number-hundred*100)/10;
+		one = number%10;
+		target = pow(hundred,3)+pow(ten,3)+pow(one,3);
+		if(target==number)
+		{
+			printf("%d\n",number);
+		}
+		number++;
+	}
+	return 0;
+}

level1/p05_allPrimes/p05_allPrimes.c

@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#define MIN_PRIME 2
+/* run this program using the console pauser or add your own getch, system("pause") or input loop */
+
+int main(int argc, char *argv[]) {
+	int number;
+	clock_t t1,t2;
+	t1 = clock();
+	number = MIN_PRIME;
+	while(number<=1000)
+	{
+		if(is_prime(number))
+		{
+			printf("%d\n",number);
+		}
+		number++;
+	}
+	t2 = clock();
+	printf("%d\n",t2-t1);
+	return 0;
+}
+int is_prime(number){
+	int i;
+	for (i=MIN_PRIME;i<number;i++)
+	{
+		if(number==MIN_PRIME)
+		{
+			return 1;
+		}
+		else if(number%i!=0)
+		{
+			continue;
+		}
+		else
+		{
+			return 0;
+		}
+	}
+
+}

level1/p06_Goldbach/main.c

@@ -0,0 +1,18 @@
+#include <stdio.h>
+
+int main() {
+    int Primes[25] = {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97};
+    for (int i = 2; i < 99; i += 2) {
+        for (int j = 0; j < 25; j++) {
+            if (Primes[j] >= i)break;
+            for (int k = j; k < 25; k++) {
+                if (Primes[j] + Primes[k] == i)
+                    printf("%d=%d+%d\n", i, Primes[j], Primes[k]);
+                else if (Primes[j] + Primes[k] > i) {
+                    break;
+                }
+            }
+        }
+    }
+    return 0;
+}

level1/p07_encrypt_decrypt/main.c

@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+/* run this program using the console pauser or add your own getch, system("pause") or input loop */
+/*reverse encrypt*/
+int main(int argc, char *argv[]) {
+	char c[1000];
+	fgets(c,(sizeof c / sizeof c[0]),stdin);
+	int d = strlen(c);
+
+	char a[1000];
+	int j = 0;
+	for (int i=d-2;i>=0;i--)
+	{
+		a[i] = c [j];
+		j++;
+	}
+	puts(a);
+	return 0;
+}

level1/p08_hanoi/hanoi.c

@@ -0,0 +1,59 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+/* run this program using the console pauser or add your own getch, system("pause") or input loop */
+int change(n,position1,position2)
+{
+	//�õ�position3 
+	char position3;
+	 if(position1 == 'A')
+	 {
+	 	if(position2 == 'B')
+		 {
+		 	position3 = 'C';
+		 }
+	 	else
+		 {
+		 	position3 = 'B';
+		 }
+	 }
+	 else if(position1 == 'B')
+	 {
+	 	if(position2 == 'A')
+	 	{
+	 		position3 = 'C';
+	 	}
+	 	else
+	 	{
+	 		position3 = 'A';
+	 	}
+	 }
+	 else
+	 {
+	 	if(position2 == 'A')
+	 	{
+	 		position3 = 'B';
+	 	}
+	 	else
+	 	{
+	 		position3 = 'A';
+	 	}
+	 }
+
+	 if(n==1)
+	 {
+	 	printf("%c->%c\n",position1,position2);
+	 	return 0;
+	 } 
+
+	 change(n-1,position1,position3);
+	 change(1,position1,position2);
+	 change(n-1,position3,position2);	
+}
+int main(int argc, char *argv[]) {
+	int n;
+	printf("�������IJ���\n");
+	scanf("%d",&n);
+	change(n,'A','B');
+	return 0;
+}

level1/p09_maze/maze.cpp

@@ -0,0 +1,136 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <conio.h>
+#include <windows.h>
+#include <time.h> 
+#define ROW 10
+#define COL 10
+
+
+
+int main(){
+	void output(int (*p)[COL],int x,int y,char ch);			//�������� 
+	void move(int (*p)[COL],char ch,int *px,int *py);
+	void print(int *p);
+	void goto_xy(int,int);
+
+	int maze[ROW][COL]={										//�Թ����� 
+	35,43,35,35,35,35,35,35,35,35,
+	35,43,43,43,35,35,35,43,35,35,
+	35,35,35,43,35,35,35,43,35,35,
+	35,35,35,43,43,43,43,35,35,35,
+	35,43,43,43,43,35,43,35,35,35,
+	35,43,35,35,43,35,43,35,35,35,
+	35,43,43,35,35,35,43,35,43,35,
+	35,43,43,43,43,35,43,43,43,35,
+	35,43,35,35,35,35,35,35,43,43,
+	35,35,35,35,35,35,35,35,35,35
+	};
+
+	int x = 0,y = 1;										//������� 
+	int *px = &x,*py = &y;
+	int (*p)[COL] = maze;
+	char m;
+
+	output(p,x,y,'w');										//�Թ�ʵ�� 
+
+	m = getch();
+	while (1){
+		move(p,m,px,py);
+		if (maze[ROW-2][COL-1] == 64){
+			break;
+		}
+		m = getch();
+	}
+	printf("Congratulations!\n");
+	system("pause");
+	return 0;
+}
+
+void print(int *p){											//����Թ����� 
+	printf("\n");
+	for (int i = 0; i<ROW; i++){
+		for (int j = 0; j<COL; j++,p++){
+			//if (*p == 43 || *p == 64){
+				printf(" ");
+			//}
+			printf("%c",*p);
+		}
+		printf("\n");
+	}
+
+	printf("�Թ�С��Ϸ\n");
+	printf("ͼ����\n");
+	printf("%c --ǽ��, %c --��·, %c --����\n",35,43,64);
+	printf("����w, a, s, d�ƶ�����\n");
+	printf("w -- ����, a -- ����, s -- ����, d -- ����\n");
+
+}
+
+void goto_xy(int x,int y){									//��λ���λ�õ�ָ������
+	HANDLE hOut;
+	hOut = GetStdHandle(STD_OUTPUT_HANDLE);
+	COORD pos={x,y};
+	SetConsoleCursorPosition(hOut,pos);
+}
+
+void output(int (*p)[COL],int x,int y,char ch){				//ʵ������ƶ� 
+
+	if (ch == 'w'){
+		*(*(p+x)+y) = 64;
+		system("cls");
+		print((int *) p);
+		goto_xy(0,20);
+	}
+	else {
+		*(*(p+x)+y) = 43;
+		system("cls");
+		print((int *) p);
+		goto_xy(0,20);
+	}
+}
+
+int isWall(int (*p)[COL],int x,int y){						//�ж�����ƶ�λ���Ƿ�Ϊǽ�� 
+	if (*(*(p+x)+y) == 43){
+		return 0;
+	}
+	else return 1;
+}
+
+void move(int (*p)[COL],char ch,int *px,int *py){			//ʵ������ƶ� 
+	int x = *px, y = *py;
+	switch (ch){
+		case 'w':
+			if (isWall(p,x-1,y) == 0){
+				output(p,x,y,'b');
+				output(p,x-1,y,'w');
+				*px = x-1;
+			}
+			break;
+		case 'a':
+			if (isWall(p,x,y-1) == 0){
+				output(p,x,y,'b');
+				output(p,x,y-1,'w');
+				*py = y-1;
+			}
+			break;
+		case 's':
+			if (isWall(p,x+1,y) == 0){
+				output(p,x,y,'b');
+				output(p,x+1,y,'w');
+				*px = x+1;
+			}
+			break;
+		case 'd':
+			if (isWall(p,x,y+1) == 0){
+				output(p,x,y,'b');
+				output(p,x,y+1,'w');
+				*py = y+1;
+			}
+			break;
+		default:;
+	}
+}
+
+
+