added more codes

Author: Lavin-tom

Diff for: Strings/a.out

@@ -0,0 +1,11 @@
+//string length using for loop
+#include<stdio.h>
+int main()
+{
+	char string[10],i;
+	printf("enter string\n");
+	scanf("%s",string);
+
+	for(i=0;string[i];i++);
+		printf("length of string %s is %d\n",string,i);
+}

Diff for: Strings/string_length_using_for_loop.c

@@ -0,0 +1,19 @@
+//wap to find the given no have exactly three divisors
+#include<stdio.h>
+int main()
+{
+	int n,count=0;
+	printf("enter n\n");
+	scanf("%d",&n);
+
+	for(int i=1;i<=n;i++){
+		if(n%i==0){
+			count++;
+			printf("%d ",i);
+		}
+	}
+	if(count==3)
+		printf("\n%d have exactly three divisors\n",n);
+	else
+		printf("\n%d have not exactly three divisors\n",n);
+}

Diff for: coding_challenge/a.out

@@ -0,0 +1,13 @@
+//little endian or big endian
+#include<stdio.h>
+int main()
+{
+	int x=10;
+	char *cp;
+	cp=&x;
+
+	if((*cp)==10)
+		printf("system follow little endian\n");
+	else
+		printf("system follow big endian\n");
+}

Diff for: coding_challenge/exactly_three.c

@@ -0,0 +1,11 @@
+//working of pointers
+#include<stdio.h>
+int main()
+{
+	int a=258,*ip;
+	char *cp;
+	cp=&a;
+	ip=&a;
+	printf("i:%d\n",*ip);
+	printf("c:%d\n",*cp);
+}

Diff for: pointers/a.out

@@ -0,0 +1,11 @@
+//pointer concept
+#include<stdio.h>
+int main()
+{
+	int i=10;
+	int *p;
+	p=&i;
+	printf("p:%u\n",p);
+	printf("*p:%d\n",*p);
+	printf("%d\n",sizeof(*p));
+}