L0 有些重复

hanoi

@@ -0,0 +1,18 @@
+#include<stdio.h>
+void move(int n,int x,int y,int z)
+{
+	if(n==1)
+	{
+		move(n-1,x,z,y);
+		printf("%c->%c\n",x,z);
+		move(n-1,y,x,z);
+	}
+}
+void main()
+{
+	int h; 
+	printf("\ninputnumber:\n");
+	scanf("%d",&h);
+	printf("the step to moving %2d diskes:\n",h);
+	move(h,'a','b','c');
+}

practices/c/level0/10000 he.c

@@ -0,0 +1,10 @@
+#include<stdio.h>
+
+void main()
+{
+	int i;
+	for(i=1;i<=10000;i++)
+	{
+		printf("hello ");
+	}
+ } 

practices/c/level0/2.c

@@ -0,0 +1,10 @@
+#include<stdio.h>
+
+void main()
+{
+	int a;
+	for(a=2;a<=100;a=a+2)
+	{
+		printf("%d ",a);
+	}
+ } 

practices/c/level0/3 and 5.c

@@ -0,0 +1,10 @@
+#include<stdio.h>
+void main()
+{
+	int a;
+	for(a=1;a<=100;a++)
+	{
+		if(a%3==0&&a%5!=0)
+		printf("%d\n",a);
+	}
+}

practices/c/level0/3 num.c

@@ -0,0 +1,30 @@
+#include <stdio.h>
+
+void main()
+{
+	int a,b,c;
+	printf("������������");
+	scanf("%d %d %d",&a,&b,&c);
+	if(a>b)
+	{
+	    if(a>c)
+		{
+			printf("����Ϊ%d",a);
+		}
+		else
+		{
+			printf("����Ϊ%d",c);
+		}
+	}
+	else
+	{
+		if(b<c)
+		{
+			printf("����Ϊ%d",c);
+		}
+		else
+		{
+			printf("����Ϊ%d",b);
+		}
+	}
+}

practices/c/level0/5 num.c

@@ -0,0 +1,20 @@
+#include<stdio.h>
+
+void main()
+{
+	int a[5];
+	printf("����5����");
+	int i,b;
+	for(i=1;i<=5;i++)
+	{
+		scanf("%d",&a[i]);
+	}
+	printf("û�г��ֵ���Ϊ");
+	for(b=0;b<=9;b++)
+	{
+		if(b!=a[1]&&b!=a[2]&&b!=a[3]&&b!=a[4]&&b!=a[5])
+	    {
+	    	printf("%d",a[i]);
+		}
+	}
+}

practices/c/level0/99.c

@@ -0,0 +1,23 @@
+#include<stdio.h>
+
+void main()
+{
+	int a,b,c;
+	printf("   *");
+	for(a=1;a<=9;a++)
+	{
+	printf("%4d",a);
+	}
+	printf("\n");
+	for(a=1;a<=9;a++)
+	{
+		printf("%4d",a);
+		for(b=1;b<=a;b++)
+		{
+			c=a*b;
+			printf("%4d",c);
+		}
+		printf("\n");
+	}
+
+}

practices/c/level0/about 7.c

@@ -0,0 +1,13 @@
+#include<stdio.h>
+
+void main()
+{
+	int a;
+	for(a=1;a<+100;a++)
+	{
+		if(a%7==0||a%10==7)
+	    {
+	    	printf("%d\n",a);
+		}
+	}
+ } 

practices/c/level0/compare 5.c

@@ -0,0 +1,24 @@
+#include<stdio.h>
+
+void main()
+{
+	int a,b,k;
+	const n=5;
+	int i[n];
+	printf("����5������\n");
+	for(a=1;a<=n;a++)
+	{
+		printf("i[%d]=",a);
+	scanf("%d",&i[a]);
+	}
+	for(a=1;a<n;a++)
+	for(b=1;b<=n-a;b++)
+	if(i[b]>i[b+1])
+	{
+		k=i[b];
+		i[b]=i[b+1];
+		i[b+1]=k;
+	}
+	for(a=1;a<=n;a++)
+	printf("%d\n",i[a]);
+ } 

practices/c/level0/jiecheng.c

@@ -0,0 +1,21 @@
+#include<stdio.h>
+
+int jc(int a)
+{
+	int b=1,i;
+	for(i=1;i<=a;i++)
+	{
+		b*=i;
+	}
+	return b;
+ } 
+void main()
+
+{
+ 	int x,y;
+	printf("��?��???��y��o");
+ 	scanf("%d",&x);
+ 	y=jc(x);
+ 	printf("jc=%d",y);
+}
+

practices/c/level0/nixu.c

@@ -0,0 +1,39 @@
+#include <stdio.h>
+#include <malloc.h>
+
+int main()
+{
+    int n=0;
+    printf("n��:");
+    scanf("%d",&n);
+    int* p;
+    int i=0;
+    int m=0;
+    p=(int*)malloc(n*sizeof(int));
+    printf("��������:\n");
+    for(i=0;i<n;i++)
+    {
+        scanf("%d",&m);
+        *(p+i)=m;
+    }
+
+	int tmp;
+    i=0;
+    m=n-1;
+    while(i<=m)
+    {
+        tmp=*(p+i);
+        *(p+i)=*(p+m);
+        *(p+m)=tmp;
+        i++;
+        m--;
+    }
+
+    i=0;
+    for(i=0;i<n;i++)
+    {
+        printf("%d ",*(p+i));
+    }
+    free(p);
+    return 0;
+}

practices/c/level0/runnian.c

@@ -0,0 +1,15 @@
+#include <stdio.h>
+int main()
+{
+	int a;
+	printf("������ݣ�");
+	scanf("%d",&a);
+	if(a%400==0||a%100!=0&&a%4==0)
+	{
+		printf("a����");
+	}
+	else
+	{
+		printf("a������");
+	}
+}

practices/c/level0/zhijiao.c

@@ -0,0 +1,41 @@
+#include<stdio.h>
+
+double zj(float a,float b,float c)
+{
+	float d;
+	if(a<b)
+	{
+		d=a;
+		a=b;
+		b=d;
+		if(a<c)
+		{
+		    d=a;
+		    a=c;
+		    c=d;
+		}
+	}
+	else
+	{
+		if(a<c)
+		{
+			d=a;
+		    a=c;
+		    c=d;
+		}
+	}
+	if(a*a==b*b+c*c)
+	return printf("Ϊֱ��");
+	else 
+	return printf("��Ϊֱ��");
+
+ } 
+
+ void main()
+ {
+ 	float x,y,z,m;
+ 	printf("��������:\n");
+ 	scanf("%f%f%f",&x,&y,&z);
+ 	m=zj(x,y,z);
+ 	printf("%d",m);
+ }

practices/c/level1/add and decode.c

@@ -0,0 +1,45 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+/* run this program using the console pauser or add your own getch, system("pause") or input loop */
+
+int main(int argc, char *argv[]) 
+{
+
+	printf("add:1��decode:2��");
+	int choose;
+	scanf("%d",&choose);
+	if(choose==1)
+	{
+		char add[30],*a;
+	    a=add;
+	    printf("add��");
+	    scanf("%s",add);
+	    while(*a!='\0')
+	    {
+		    *a=*a+'B'-'m';
+		    a++;
+	    }
+	printf("%s",add);
+	}
+
+	else if(choose==2)
+	{
+		char decode[30],*b;
+	    b=decode;
+	    printf("decode��");
+	    scanf("%s",decode);
+	    while(*b!='\0')
+	    {
+		    *b=*b+'m'-'B';
+		    b++;
+	    }
+	printf("%s",decode);
+	}
+
+	else
+	{
+		printf("error");
+	}
+	return 0;
+}

practices/c/level1/age.c

@@ -0,0 +1,18 @@
+#include<stdio.h>
+int main()
+{
+	int life,tn,qn,ds,son;
+	printf("age may be��");
+    for(life=1;life++;life<=100)
+    {
+    	tn=life/6;
+    	qn=life/12;
+    	ds=life/7;
+    	son=life/2;
+
+		if(life==tn+qn+ds+5+son+4&&life%84==0)
+    	{
+    		printf("%d",life);
+		}
+	}
+}

practices/c/level1/all primes.c

@@ -0,0 +1,19 @@
+#include<stdio.h>
+int main()
+{
+	int a,b,c;
+	printf("primes from 2-1000��2\t");
+	for(a=3;a<=1000;a++)
+	{
+		c=0;
+		for(b=2;b<a;b++)
+		{
+			if(a%b!=0)
+			c++;
+		}
+		if(c==a-2)
+		{
+			printf("%d\t",a);
+		}
+	}
+}