All Linked List DSA concepts in one file.

C/Date-to-day.c

@@ -1,78 +1,78 @@
-#include <stdio.h>
-
-/*
- * function: validateDate
- * arguments: d- day, m- month, y- year
- * return type: 0 - invalid, 1 - valid
- * */
-int validateDate(int d, int m, int y)
-{
-    //check year validity
-    if (y >= 1800 && y <= 2999) {
-        //check month validity
-        if (m >= 1 && m <= 12) {
-            //check day validity
-            if (d >= 1 && d <= 31) {
-                if ((d >= 1 && d <= 30) && (m == 4 || m == 6 || m == 9 || m == 11))
-                    return 1; //valid date
-                else if ((d >= 1 && d <= 30) && (m == 1 || m == 3 || m == 5 || m == 7 || m == 8 || m == 10 || m == 12))
-                    return 1; //valid date
-                else if ((d >= 1 && d <= 28) && (m == 2))
-                    return 1; //valid date
-                else if (d == 29 && m == 2 && ((y % 400 == 0) || (y % 4 == 0 && y % 4 != 0)))
-                    return 1; //valid date
-                else
-                    return 0; //invalid day
-            }
-            else {
-                printf("\nTHERE IS NO SUCH MONTH DATE SO ADD CAREFULLY");
-                return 0; //day is invalid
-            }
-        }
-        else {
-             printf("\nTHERE ARE ONLY 12 MONTHS AS PER NOW SO JUST ADD DATE WITHIN IT");
-            return 0; //month is invalid
-        }
-    }
-    else {
-        printf("\nPLZ ENTER YEAR FROM 1800 TO 2999");
-        return 0; //year is invalid
-    }
-}
-// This function will return week day number from 0 to 6
-int wd(int year, int month, int day)
-{
-    int wday = 0;
-    wday = (day + ((153 * (month + 12 * ((14 - month) / 12) - 3) + 2) / 5)
-               + (365 * (year + 4800 - ((14 - month) / 12)))
-               + ((year + 4800 - ((14 - month) / 12)) / 4)
-               - ((year + 4800 - ((14 - month) / 12)) / 100)
-               + ((year + 4800 - ((14 - month) / 12)) / 400)
-               - 32045)
-        % 7;
-    return wday;
-}
-
-int main()
-{
-    int day, month, year;
-    int wDayNo = 0;
-    char dayNames[][12] = { "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday" };
-
-    //input date
-    printf("Input date (DD-MM-YYYY): ");
-    scanf("%d-%d-%d", &day, &month, &year);
-
-    //check date is correct or not
-    if (validateDate(day, month, year) == 1) {
-        printf("Date is correct [%02d/%02d/%02d].\n", day, month, year);
-        //get weekday number
-        wDayNo = wd(year, month, day);
-        //print weekday according to wDayNo
-        printf("week day is: %s\n", dayNames[wDayNo]);
-    }
-    else
-        printf("\nDate is in-correct.\n");
-
-    return 0;
+#include <stdio.h>
+
+/*
+ * function: validateDate
+ * arguments: d- day, m- month, y- year
+ * return type: 0 - invalid, 1 - valid
+ * */
+int validateDate(int d, int m, int y)
+{
+    //check year validity
+    if (y >= 1800 && y <= 2999) {
+        //check month validity
+        if (m >= 1 && m <= 12) {
+            //check day validity
+            if (d >= 1 && d <= 31) {
+                if ((d >= 1 && d <= 30) && (m == 4 || m == 6 || m == 9 || m == 11))
+                    return 1; //valid date
+                else if ((d >= 1 && d <= 30) && (m == 1 || m == 3 || m == 5 || m == 7 || m == 8 || m == 10 || m == 12))
+                    return 1; //valid date
+                else if ((d >= 1 && d <= 28) && (m == 2))
+                    return 1; //valid date
+                else if (d == 29 && m == 2 && ((y % 400 == 0) || (y % 4 == 0 && y % 4 != 0)))
+                    return 1; //valid date
+                else
+                    return 0; //invalid day
+            }
+            else {
+                printf("\nTHERE IS NO SUCH MONTH DATE SO ADD CAREFULLY");
+                return 0; //day is invalid
+            }
+        }
+        else {
+             printf("\nTHERE ARE ONLY 12 MONTHS AS PER NOW SO JUST ADD DATE WITHIN IT");
+            return 0; //month is invalid
+        }
+    }
+    else {
+        printf("\nPLZ ENTER YEAR FROM 1800 TO 2999");
+        return 0; //year is invalid
+    }
+}
+// This function will return week day number from 0 to 6
+int wd(int year, int month, int day)
+{
+    int wday = 0;
+    wday = (day + ((153 * (month + 12 * ((14 - month) / 12) - 3) + 2) / 5)
+               + (365 * (year + 4800 - ((14 - month) / 12)))
+               + ((year + 4800 - ((14 - month) / 12)) / 4)
+               - ((year + 4800 - ((14 - month) / 12)) / 100)
+               + ((year + 4800 - ((14 - month) / 12)) / 400)
+               - 32045)
+        % 7;
+    return wday;
+}
+
+int main()
+{
+    int day, month, year;
+    int wDayNo = 0;
+    char dayNames[][12] = { "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday" };
+
+    //input date
+    printf("Input date (DD-MM-YYYY): ");
+    scanf("%d-%d-%d", &day, &month, &year);
+
+    //check date is correct or not
+    if (validateDate(day, month, year) == 1) {
+        printf("Date is correct [%02d/%02d/%02d].\n", day, month, year);
+        //get weekday number
+        wDayNo = wd(year, month, day);
+        //print weekday according to wDayNo
+        printf("week day is: %s\n", dayNames[wDayNo]);
+    }
+    else
+        printf("\nDate is in-correct.\n");
+
+    return 0;
 }

C/SumOfArray.c

@@ -1,44 +1,44 @@
-#include <stdio.h>
-#include <malloc.h>
-#include <stdlib.h>
-
-void main()
-{
-
-        int i, n;
-	int *a, *b, *c;
-
-        printf("Enter the size of the arrays\n");
-        scanf("%d", &n);
-
-        a = (int *)malloc(n * sizeof(int));
-        b = (int *)malloc(n * sizeof(int));
-        c = (int *)malloc(n * sizeof(int));
-
-        printf("Enter Elements of First List\n");
-
-        for (i = 0; i < n; i++)
-        {
-  		scanf("%d", a + i);
-	}
-
-        printf("Enter Elements of Second List\n");
-
-        for (i = 0; i < n; i++)
-        {
- 		scanf("%d", b + i);
-	}
-
-        for (i = 0; i < n; i++)
-        {
-		*(c + i) = *(a + i) + *(b + i);
-	}
-
-        printf("Resultant List is\n");
-
-        for (i = 0; i < n; i++)
-        {
-		printf("%d\n", *(c + i));
-	}
-        return 0;
+#include <stdio.h>
+#include <malloc.h>
+#include <stdlib.h>
+
+void main()
+{
+
+        int i, n;
+	int *a, *b, *c;
+
+        printf("Enter the size of the arrays\n");
+        scanf("%d", &n);
+
+        a = (int *)malloc(n * sizeof(int));
+        b = (int *)malloc(n * sizeof(int));
+        c = (int *)malloc(n * sizeof(int));
+
+        printf("Enter Elements of First List\n");
+
+        for (i = 0; i < n; i++)
+        {
+  		scanf("%d", a + i);
+	}
+
+        printf("Enter Elements of Second List\n");
+
+        for (i = 0; i < n; i++)
+        {
+ 		scanf("%d", b + i);
+	}
+
+        for (i = 0; i < n; i++)
+        {
+		*(c + i) = *(a + i) + *(b + i);
+	}
+
+        printf("Resultant List is\n");
+
+        for (i = 0; i < n; i++)
+        {
+		printf("%d\n", *(c + i));
+	}
+        return 0;
 }

C/main.c

@@ -1,52 +1,52 @@
-#include <stdio.h>
-#include <stdlib.h>
-
-int main()
-{
-    int a,b,i,c,sum=0,Mul=1;
-    printf("Enter first Number:");
-    scanf("%d",&a);
-    printf("\nEnter last Number:");
-    scanf("%d",&b);
-    printf("All odd numbers from %d-%d are:\n",a,b);
-    for (i=a;i<=b;i++)
-    {
-        if (i%2==1)
-        {
-        printf("%d\n",i);
-        }
-    }
-    printf("\n\tTo get Addition of that numbers Press 1:");
-    printf("\n\tTo get Multiplication of that numbers press 2:");
-    printf("\n\tpress:");
-    scanf("%d",&c);
-    switch (c)
-    {
-    {
-case 1:
-    {
-        for (i=a;i<=b;i++)
-        {
-            if(i%2==1)
-            {
-                sum=sum+i;
-            }
-        }
-    printf("Addition is:%d",sum);
-    break;
-    }
-    case 2:
-    {
-        for(i=a;i<=b;i++)
-        {
-            if(i%2==1)
-            {
-                Mul=Mul*i;
-            }
-        }
-    printf("Multiplication is:%d",Mul);
-    }
-    }
-    return 0;
-}
-}
+#include <stdio.h>
+#include <stdlib.h>
+
+int main()
+{
+    int a,b,i,c,sum=0,Mul=1;
+    printf("Enter first Number:");
+    scanf("%d",&a);
+    printf("\nEnter last Number:");
+    scanf("%d",&b);
+    printf("All odd numbers from %d-%d are:\n",a,b);
+    for (i=a;i<=b;i++)
+    {
+        if (i%2==1)
+        {
+        printf("%d\n",i);
+        }
+    }
+    printf("\n\tTo get Addition of that numbers Press 1:");
+    printf("\n\tTo get Multiplication of that numbers press 2:");
+    printf("\n\tpress:");
+    scanf("%d",&c);
+    switch (c)
+    {
+    {
+case 1:
+    {
+        for (i=a;i<=b;i++)
+        {
+            if(i%2==1)
+            {
+                sum=sum+i;
+            }
+        }
+    printf("Addition is:%d",sum);
+    break;
+    }
+    case 2:
+    {
+        for(i=a;i<=b;i++)
+        {
+            if(i%2==1)
+            {
+                Mul=Mul*i;
+            }
+        }
+    printf("Multiplication is:%d",Mul);
+    }
+    }
+    return 0;
+}
+}