Mishthi Nagpal

bubble_sort.c

@@ -0,0 +1,41 @@
+#include<stdio.h>
+int main()
+{
+    int n;
+    printf("enter the number of elements in the array: ");
+    scanf("%d",&n);
+    int arr[n];
+    printf("enter the elements in the array:\n");
+    for(int i=0; i<n; i++)
+    {
+        printf("element[%d]: ",i+1);
+        scanf("%d",&arr[i]);
+    }
+    int temp, swapped;
+    for(int i=0; i<n-1; i++)
+    {
+        swapped=0;
+        for(int j=0; j<n-1; j++)
+        {
+            if(arr[j] > arr[j+1])
+            {
+                temp=arr[j];
+                arr[j]= arr[j+1];
+                arr[j+1]=temp;
+                swapped=1;
+            }
+        }
+        if(swapped == 0)
+        {
+            break;
+        }
+
+    }
+    printf("Sorted array:\n");
+    for(int i=0; i<n; i++)
+    {
+        printf(" %d ",arr[i]);
+    }
+    printf("\n");
+    return 0;
+}

factorial_via_recursion.c

@@ -0,0 +1,21 @@
+#include<stdio.h>
+int factorial(int n);
+int main()
+{
+    int n;
+    printf("Enter a number: ");
+    scanf("%d",&n);
+    printf("Factorial of %d: %d",n,factorial(n));
+    return 0;
+}
+int factorial(int n)
+{
+    if (n >= 1)
+    {
+        return n*factorial(n-1);
+    }
+    else
+    {
+        return 1;
+    }
+}

first_letter.c

@@ -0,0 +1,11 @@
+#include<stdio.h>
+int main()
+{
+    char word[100];
+    printf("Enter a sentence: ");
+    while(scanf("%s",word) == 1)
+    {
+        printf("%c\n",word[0]);
+    }
+    return 0;
+}

matrix_det.c

@@ -0,0 +1,19 @@
+#include <stdio.h>
+int main()
+{
+   int matrix[2][2];
+   int det;
+   printf("Enter the elements of the 2 x 2 matrix:\n");
+   for(int i=0; i<2; i++)
+   {
+        for(int j=0; j<2; j++)
+        {
+            printf("element [%d][%d]:",i+1, j+1);
+            scanf("%d",&matrix[i][j]);
+        }
+   }
+   det = (matrix[0][0] * matrix[1][1]) - (matrix[0][1] * matrix[1][0]);
+
+   printf("Determinant:%d\n",det);
+   return 0;
+}

palindrome.c

@@ -0,0 +1,34 @@
+#include<stdio.h>
+#include<string.h>
+int main()
+{
+    char str[100];
+    char orstr[100];
+    char arstr[100];
+
+
+    printf("enter a string: ");
+    scanf("%s",str);
+    strcpy(orstr,str);
+    strcpy(arstr,str);
+    int first = 0;
+    int last = strlen(str)-1;
+    char x;
+    while(first < last)
+    {
+        x = arstr[first];
+        arstr[first] = arstr[last];
+        arstr[last] = x;
+        first++;
+        last--;
+    }
+    int val = strcmp(orstr,arstr);
+    if(val == 0)
+    {
+        printf("string is palindrome");
+    }
+    else
+    {
+        printf("string is not palindrome");
+    }
+}