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level1/p01_runningLetter/作业1.c

@@ -0,0 +1,77 @@
+#include<stdio.h>
+#include<windows.h>
+#include<stdlib.h>
+#define boundary 50;
+
+void setCursor(int x, int y)
+
+{
+	HANDLE hCon = GetStdHandle(STD_OUTPUT_HANDLE);
+	COORD pos;
+	pos.X = x;
+	pos.Y = y;
+	SetConsoleCursorPosition(hCon,pos);
+
+}
+
+
+
+void setConsole()
+
+{
+
+	HANDLE hCon = GetStdHandle(STD_OUTPUT_HANDLE);
+
+	SMALL_RECT rc;
+
+	rc.Left = 0;
+
+	rc.Top = 0;
+
+	rc.Right = boundary;
+
+	rc.Bottom = 29;
+
+	SetConsoleWindowInfo(hCon, TRUE, &rc);
+
+}
+
+
+
+void run()
+
+{
+
+	setConsole();
+	int x =0, y = 0;
+	int test = 1;
+	char value;
+	scanf("%c", &value);
+	setCursor(x, y);
+	printf("%c", value);
+	Sleep(70);
+	while (1) {
+		system("cls");
+		if (test)/*换boundary蜜汁显示缺小括号*/
+			setCursor(x++, y);
+		else
+			setCursor(--x, y);
+		if (x >= 50)
+			test = !test;
+		else if(x<0)
+			test = !test;
+
+		printf("%c", value);
+		Sleep(70);
+	}
+}
+
+
+
+int main() {
+
+	run();
+	system("pause");
+	return 0;
+
+}

level1/p02_isPrime/作业2.c

@@ -0,0 +1,23 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<math.h>
+int main() {
+
+	int a, i, m;
+	scanf("%d", &a);
+	m = sqrt((double)a);
+	for (i = 2; i <= m; i++)
+		if (a%m == 0)
+			break;
+		else if (i <= m)
+			printf("No!this is not a prime.");
+		else
+			printf("Yes,it is a prime.");
+
+
+
+	system("pause");
+	return 0;
+
+}
+

level1/p03_Diophantus/作业3.c

@@ -0,0 +1,16 @@
+#include <stdio.h>
+#include<stdlib.h>
+void main()
+{
+	int i;
+	for (i = 1;i<300; i++)
+	{
+		if (i*1.0 / 6 + i*1.0 / 12 + i*1.0/ 7+ 5 + 4 == i*1.0/ 2)
+		{
+			printf("����ͼ��������%d��", i);
+			break;
+		}
+	}
+	system("pause");
+	return 0;
+}

level1/p04_ narcissus/作业4.c

@@ -0,0 +1,21 @@
+#include<stdio.h>
+#include<math.h>
+int main() {
+
+	int  a, b, c,value;
+
+		printf("����������");
+
+		for (int i = 2; i < =1000; i++) {
+			a = sqrt(i);
+			if (i%a!= 0) {
+				printf("%d\n", i);
+			}
+
+		}
+
+
+
+	system("pause");
+	return 0;
+}

level1/p06_Goldbach/text6.c

@@ -0,0 +1,22 @@
+#include<stdio.h>
+int prime(int n)
+{   
+		for (int i = 2; i*i <= n; i++) //�����
+			if (n%i == 0)return 0;
+		return n > 1;
+}
+int main()
+{
+	int x, i;
+	printf("������1~100������:");
+	scanf("%d", &x); //���������
+	for (i = 2; i <= x / 2; i++) //�����ظ�
+		if (prime(i) && prime(x - i))
+		{
+			printf("%d=%d+%d\n", x, x - i, i);
+			getchar();
+			return 0;
+
+		}
+
+}

level1/p07_encrypt_decrypt/TEXT(7).c

@@ -0,0 +1,105 @@
+#include<stdio.h>
+#include<string.h>
+#include<string.h>
+int main() {
+
+	int i, j, k, num, num1;
+	char a1[30], a2[30];
+	printf("��ѡ������:\n1.����\t 2.����\n");
+	scanf("%d", &num);
+	    if (num = 1) {
+
+			printf("����������ı�:");
+			int num1 = 0;
+			int len;
+			scanf("%d",&a1);
+			len = strlen(a1);
+			printf("�����ƶ�λ��:");
+			scanf("%d", num1);
+		for (i = 0; i < len; i++) {
+				if (a1[i] >= 'A'&&a1[i] <= 'Z')
+				{
+					a1[i] = (a1[i] - 'A' + num1) % 26 + 'A';
+				}
+				else if (a1[i] >= 'a'&&a1[i] <= 'z')
+				{
+					a1[i] = (a1[i] - 'a' + num1) % 26 + 'a';
+				}
+
+			}
+			printf("������ܽ��:%c", a1);
+			printf("\n");
+		}
+	if (num = 2) {
+		printf("����������ı�:");
+		int len,num1;
+		scanf("%d", &a1);
+		len = strlen(a1);
+		for (num1 = 0; num1 < 26;num1++) {
+			for (i = 0; i < len; i++) {
+				if (a1[i] >= 'A'&&a1[i] <= 'Z')
+				{
+					a1[i] = (a1[i] - 'A' + num1) % 26 + 'A';
+				}
+				else if (a1[i] >= 'a'&&a1[i] <= 'z')
+				{
+					a1[i] = (a1[i] - 'a' + num1) % 26 + 'a';
+				}
+
+			}
+			printf("������ܽ��:%c",a1);
+			system("pause");
+			printf("\n");
+
+		}
+		}
+	getchar();
+	return 0;
+	}
+
+#define MAX 30
+/*int main() {
+char P[MAX] = { 0 };
+printf("������������ı�:");
+scanf("%d", &P);
+int len, i, j, k, temp,num = 0;
+len = strlen(P);
+int A1[1][MAX] = { 0 }, A2[1][MAX] = { 0 };
+int t1[MAX] = { 0 }, t2[MAX] = { 0 };
+printf("�������ܳ�:\n");
+for (i = 0; i < len; i++) {
+for (j = 0; j < len; j++) {
+scanf("%d", &A1[i][j]);
+printf("�ܳ�Ϊ:%s", A1);
+}
+}
+
+printf("��ѡ������:\n1.����\t 2.����\n");
+scanf("%d", &num);
+if (num = 1) {
+for (i = 0; i < len; i++) {
+if (P[i] >= 'A'&&P[i] <= 'Z') {
+P[i] = P[i] +32;
+t1[i] = P[i] - 'a';
+}
+}
+for (i = 0; i < len; i++) {
+for (j = 0; j < len; j++) {
+temp = 0;
+for (k = 0; k < len; k++) {
+temp+= t1[k] * A1[k][j];
+}
+A2[i][j] = temp;
+printf("%d\t", A2[i][j]);
+}
+printf("%d\n");
+}
+printf("%d", A2);
+for (i = 0; i < len; i++) {
+t2[i] = A2[i] + 'a';
+}
+printf("���ܽ��Ϊ:%d", t2[i]);
+system("pause");
+}
+return 0;
+}*/   //emmmmm��debug

level1/p08_hanoi/text8.c

@@ -0,0 +1,19 @@
+#include<stdio.h>
+void hano(int n,char p1, char p2, char p3) {
+	if (n == 1) {
+		printf("\t%c-->%c", p1, p3);
+	}
+	else
+	{
+		hano(n - 1, p1, p3, p2);
+		printf("\t%c-->%c\n", p1, p3);
+		hano(n - 1, p2, p1, p3);
+	}
+}
+int main() {
+	int n;
+	printf("�����ƶ�����:");
+	scanf("%d", &n);
+	hano(n, 'p1', 'p2','p3');
+	return 0;
+}

level1/p11_linkedList/Unfinish2.c

@@ -0,0 +1,48 @@
+#include<stdio.h>
+#include<malloc.h>
+int* ptr = NULL;
+static int count = 0;
+void insert(data){
+	if (ptr == NULL) {
+		ptr = (int*)malloc(sizeof(int));
+		ptr[0] = data;
+	}
+	else {
+		ptr = (int*)realloc(ptr, sizeof(int)*(count + 1));
+		ptr[count] = data;
+	}
+	count++;
+}
+void show() {
+	int i = 0;
+	for (i = 0; i < count; i++) {
+		printf("%d\n", ptr[i]);
+	}
+}
+int main(int argc, char*argv[]) {
+	int c = 0;
+	int data;
+	while (1)
+	{
+		printf("choice");
+		printf("1 is to insert data\n");
+		printf("2 is to show data.\n");
+		printf("3 is to quit\n ");
+		scanf("%d\n", &c);
+		switch (c) {
+		case 1:
+			printf("date=");
+			scanf("%d\n", &data);
+			insert(data);
+			break;
+		case 2:
+			show();
+			break;
+		case 3:
+			exit(0);
+		}
+	}
+	return 0;
+	getchar();
+}
+  //����2��emmm����