diff --git a/Insertion_Sort.cpp b/Insertion_Sort.cpp
index bf8c6ed..769a5f7 100644
--- a/Insertion_Sort.cpp
+++ b/Insertion_Sort.cpp
@@ -38,7 +38,7 @@ void insertionSort(int arr[], int n) {
 int main() {
 
     int n;
-    cout<<"Enter number of elements : ";
+    cout<<"Enter the number of elements : ";
     cin>>n;
 
     int arr[n];
diff --git a/Kadanes_Algo b/Kadanes_Algo
new file mode 100644
index 0000000..d788079
--- /dev/null
+++ b/Kadanes_Algo
@@ -0,0 +1,20 @@
+#include <iostream>
+using namespace std;
+int main()
+{
+    int n;
+    cin >> n;
+    int ms = 0, cs = 0;
+    int arr[n];
+    for (int i = 0; i < n; i++)
+    {
+        cin >> arr[i];
+        cs += arr[i];
+        if (cs < 0)
+            cs = 0;
+        else if (cs >= ms)
+            ms = cs;
+    }
+    cout << ms << endl;
+    return 0;
+}
diff --git a/Stack using linked list.c b/Stack using linked list.c
new file mode 100644
index 0000000..c3f9864
--- /dev/null
+++ b/Stack using linked list.c	
@@ -0,0 +1,106 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+struct Node
+{
+    int data;
+    struct Node *next;
+};
+
+struct Node *head = NULL;
+
+void push(int value)
+{
+    struct Node *n = (struct Node *)malloc(sizeof(struct Node *));
+    if (head == NULL)
+    {
+        head = n;
+        n->data = value;
+        n->next = NULL;
+        return;
+    }
+
+    n->next = head;
+    n->data = value;
+    head = n;
+}
+
+void pop()
+{
+    struct Node *temp = head;
+    if (head == NULL)
+    {
+        printf("\nStack is empty.\n");
+        return;
+    }
+
+    head = head->next;
+    temp->next = NULL;
+}
+
+void peek()
+{
+    if (head == NULL)
+    {
+        printf("\nStack is empty.\n");
+        return;
+    }
+
+    printf("The top element is: %d\n", head->data);
+}
+
+void display()
+{
+    struct Node *temp = head;
+    if (head == NULL)
+    {
+        printf("\nStack is empty.\n");
+        return;
+    }
+    printf("\nElements of stack are:\n");
+    while (temp != NULL)
+    {
+        printf("%d\n", temp->data);
+        temp = temp->next;
+    }
+}
+
+int main()
+{
+    while (1)
+    {
+        printf("\n=======Menu=======\n");
+        printf("1. Push\n");
+        printf("2. Pop\n");
+        printf("3. Peek\n");
+        printf("4. Display\n");
+        printf("5. Exit\n\n");
+        int c, n;
+        scanf("%d", &c);
+        switch (c)
+        {
+        case 1:
+            printf("Enter the element to be inserted: ");
+            scanf("%d", &n);
+            push(n);
+            break;
+        case 2:
+            pop();
+            break;
+        case 3:
+            peek();
+            break;
+        case 4:
+            display();
+            break;
+        case 5:
+            exit(0);
+            break;
+
+        default:
+            printf("Please select a valid option.");
+        }
+    }
+
+    return 0;
+}
\ No newline at end of file
diff --git a/rat_in_maze.cpp b/rat_in_maze.cpp
new file mode 100644
index 0000000..808a791
--- /dev/null
+++ b/rat_in_maze.cpp
@@ -0,0 +1,75 @@
+#include<iostream>
+using namespace std;
+
+bool isSafe(int** arr, int x, int y, int n){
+
+    if( x<n && y<n && arr[x][y]==1) {
+        return true;
+    }
+
+    return false;
+}
+
+bool ratinmaze(int** arr, int x, int y, int n, int** solArr){
+
+    if( ( x == (n-1) && y == (n-1) )){
+        solArr[x][y]=1;
+        return true;
+    }
+
+    if( isSafe(arr,x,y,n)){
+
+        solArr[x][y]=1;
+
+        if( ratinmaze(arr,x+1,y,n,solArr) ){
+            return true;
+        }
+        if( ratinmaze(arr,x,y+1,n,solArr) ){
+            return true;
+        }
+
+        solArr[x][y]=0;
+        return false;
+    }
+
+    return false;
+}
+
+
+int main(){
+
+    int n;
+    cin>>n;
+
+    int** arr = new int*[n];
+    for(int i=0; i<n; i++){
+        arr[i] = new int[n];
+    }
+
+    for(int i=0; i<n; i++){
+        for (int j=0; j<n; j++){
+            cin>>arr[i][j];
+        }
+    }
+
+    int** solArr = new int*[n];
+    for(int i=0; i<n; i++){
+        solArr[i] = new int[n];
+        for (int j=0; j<n; j++){
+            solArr[i][j]=0;
+        }
+    }
+
+    cout<<endl;
+
+    if(ratinmaze(arr,0,0,n,solArr)){
+        for(int i=0; i<n; i++){
+            for (int j=0; j<n; j++){
+                cout<<solArr[i][j]<<" ";
+            }
+            cout<<endl;
+        }
+    }
+
+    return 0;
+}
\ No newline at end of file