段林林level 1前五题

practices/c/level0/0-9.c

@@ -0,0 +1,20 @@
+#include<stdio.h>
+int main(void)
+{
+  int number[10]={0};
+  int i,j;
+
+  for(i=1;i<=5;i++){
+    scanf("%d",&j);
+    number[j]=1;
+  }
+
+  for(i=1;i<=9;i++){
+   if(number[i]==0){
+    printf("%d",i);
+  }
+
+  }
+   return 0;
+}
+

practices/c/level0/10000—hello.c

@@ -0,0 +1,14 @@
+#include<stdio.h>
+
+int main(void)
+{
+    int i = 0;
+
+    for(i = 0;i <1000;++i){
+        printf("Hello!\n");
+    }
+
+	return 0;
+
+}
+

practices/c/level0/100_ou_shu.c

@@ -0,0 +1,15 @@
+#include<stdio.h>
+
+int main(void)
+{
+    int ou,i=0;
+
+    for(ou = 2;i < 50;++i){
+     printf("%d\n",ou);
+     ou += 2;
+     }
+
+	return 0;
+
+}
+

practices/c/level0/13的倍数判断.c

@@ -0,0 +1,15 @@
+#include <stdio.h>
+
+int main(void)
+{
+	int n = 0;
+	printf("Please input n:");
+	scanf("%d",&n);
+
+	if (0==n%13)
+		printf("%d ÊÇ13µÄ±¶Êý",n);
+	else
+		printf("%d ²»ÊÇ13µÄ±¶Êý",n);
+
+	return 0;
+}

practices/c/level0/3_5.c

@@ -0,0 +1,17 @@
+#include<stdio.h>
+
+int main(void)
+{
+    int k,i=0;
+
+    for(k =0 ;i <= 100;++i){
+     k = ++k;
+     if(0 == k % 3 && 0 != k % 5){
+        printf("%d\n",k);
+        }
+     }
+
+	return 0;
+
+}
+

practices/c/level0/7.c

@@ -0,0 +1,22 @@
+#include<stdio.h>
+
+int main(void)
+{
+    int k,j=0,i=0;
+
+    for(k =0 ;i < 100;++i){
+     k = ++k;
+     if(0 == k % 7 ){
+        printf("%d\n",k);
+        }
+    }
+
+     for( j = 0;j<10;++j){
+        printf("%d\n",k=j*10+7);
+        }
+
+
+	return 0;
+
+}
+

practices/c/level0/99.c

@@ -0,0 +1,16 @@
+#include<stdio.h>
+
+int main(void)
+{
+   int i,j;
+
+   for(i=1;i<=9;++i){
+     for(j=1;j<=i;++j)
+        printf("%d*%d=%d\t",j,i,i*j);
+        printf("\n");
+   }
+
+
+   return 0;
+}
+

practices/c/level0/hello world.c

@@ -0,0 +1,8 @@
+#include <stdio.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("hello world,I am Duan Linlin!");
+	return 0;
+}

practices/c/level0/n.c

@@ -0,0 +1,27 @@
+#include<stdio.h>
+#define M 10000
+int main(void)
+{
+   int i,j=0,n;
+   int a[M],b[M];
+
+   printf("please input n:\n");
+   scanf("%d",&n);
+   printf("please input %d numbers:\n",n);
+
+   for(i=1;i<=n;++i){
+        scanf("%d",&a[i]);
+   }
+
+   for(i=n;i>=0;i--){
+        b[++j]=a[i];
+   }
+
+   for(i=1;i<=n;++i){
+        printf("%d\t",b[i]);
+   }
+
+   return 0;
+}
+
+

practices/c/level0/run_nian.c

@@ -0,0 +1,17 @@
+#include <stdio.h>
+
+int main(void)
+{
+	int year = 0;
+
+	printf("Please input year:");
+	scanf("%d",&year);
+
+	if ((0 != year % 100 && 0 == year % 4) || 0 == year % 400)
+
+        printf("%d is leap year",year);
+    else
+        printf("%d 不是闰年",year);
+
+	return 0;
+}

practices/c/level0/取n个数中最大数.c

@@ -0,0 +1,23 @@
+#include<stdio.h>
+
+int main(void)
+{
+	int m,n,l,s,i;
+	printf("您想输入几个数字:");
+	scanf("%d",&n);
+	printf("please input %d numbers:\n",n);
+
+	for(i=0;i<n ;++i){
+	    scanf("%d",&m);
+	    if(m>l){
+	       s=m;
+	       l=s;}
+	}
+
+	printf("%d 是这些数字中最大的",s);
+
+
+	return 0;
+
+}
+

practices/c/level0/奇偶正负.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+
+int main(void)
+{
+    int n = 0;
+
+    printf("Please input n:");
+    scanf("%d",&n);
+
+    if (n>0)
+        printf("%d is positive number\n",n);
+    else if (n<0)
+        printf("%d is negative number\n",n);
+    else
+        printf("%d is zero\n",n);
+
+    if (0 == n % 2)
+        printf("%d is a even\n",n);
+    else
+        printf("%d is a obb\n",n);
+
+    return 0;
+}

practices/c/level1/p04_ narcissus/shui_xian_shu.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+
+int main(void)
+{
+  int bai,shi,ge;
+  int shui_xian_shu;
+
+  printf("Please output all shui_xian_shus:\n");
+  for(bai=1;bai<10;++bai){
+    for(shi=0;shi<10;++shi){
+      for(ge=0;ge<10;++ge){
+            shuixianshu = bai*100 + shi*10 + ge;
+
+            if (bai*bai*bai + shi*shi*shi + ge*ge*ge == shui_xian_shu)
+                printf("%5d\n",shui_xian_shu);
+      }
+    }
+  }
+
+  printf("\n");
+
+    return 0;
+}