Name Encryption Exercise

String/encrypt.c

@@ -0,0 +1,47 @@
+#include <string.h>
+#include <stdio.h>
+
+void encryption(char *name);
+int main()
+{
+	int n,i;
+    char str[128];
+
+    scanf("%[^\n]%*c",str);
+
+
+    printf("%s\n",str );
+	return 0;
+}
+
+void encryption(char *name){
+	int i,c=0, countSTR;
+
+	countSTR = strlen(name);//get the amount of the string
+	char aux[countSTR];
+
+
+	//move all CHARACTERS in 3 characters to the right
+	for (i = 0; i < countSTR; i++){
+		 if ((name[i]>='A' && name[i]<='Z') || (name[i]>='a' && name[i]<='z')) name[i] = name[i]+3;
+	}
+
+	//ssave the password in an auxiliary vector
+	for (i = 0; i < countSTR; i++){
+		aux[i]=name[i];
+	}
+
+	//reverse the string
+	for (i = countSTR-1; i>=0 ; --i){
+		name[c]=aux[i];
+		c++;
+	}
+
+	//view the amount of elements and save the amount of
+    countSTR = (int)(countSTR/2);
+
+    //move the half (countSTR) of the characters to the left
+    for (i = countSTR; name[i]!='\0'; ++i){
+        name[i] = name[i]-1;
+    }
+}