diff --git a/C/Bankersalgo.c b/C/Bankersalgo.c
new file mode 100644
index 0000000..bbb87e8
--- /dev/null
+++ b/C/Bankersalgo.c
@@ -0,0 +1,91 @@
+#include<stdio.h>
+#include<stdbool.h>
+
+int main(){
+   
+   int available[4];
+   int max[5][4];
+   int allocation[5][4];
+   int need[5][4];
+   bool finish[5];
+   int p;
+   int work[4];
+   printf("Enter the number of process required");
+   scanf("%d",&p);
+   for(int i = 0;i<p;i++){
+        finish[i] = false;
+      }
+   printf("Enter the available resource for each instance ");
+   for(int i =0;i<4;i++){
+        scanf("%d",&available[i]);
+       }
+   for(int i=0;i<4;i++){
+       work[i] = available[i];
+      }
+   printf("Enter the maximum amount of resource resourcde instances required");
+   for(int i =0;i<p;i++){
+       for(int j =0;j<4;j++){
+           scanf("%d",&max[i][j]);
+         }
+      }
+  printf("Enter the allocation of each resource instances");
+        for(int i =0;i<p;i++)
+          {
+           for(int j =0;j<4;j++)
+             {
+              scanf("%d",&allocation[i][j]);
+             }
+             printf("%i",allocation[i][j];
+          }
+printf("Calculating the Need matrix..");
+      for(int i =0;i<p;p++)
+          {
+           for(int j =0;j<4;j++)
+             {
+              need[i][j] = max[i][j] - allocation[i][j];
+             }
+           }
+           int safestate[6];
+           int gg=0;
+           
+  while(finish==false)
+      {
+       for(int i=0;i<p;i++)
+         {
+          int k = 0;
+       for(int j=0;j<4;j++)
+          {
+           if(finish[i]==false)
+              if(need[i][j]<=work[k]){
+                   k++;
+                   safestate[gg]=i;
+                   gg++;
+                   printf("");
+                }                
+               else{
+                    printf("Resource csnnot be allocate out of scope");
+                    break;
+                   }
+               for(int m=0;m<1;m++)
+                  {
+                   for(int l=0;l<4;l++)
+                  {
+                   work[m] = work[m] + allocation[m][l];
+                  }
+                  finish[i] = true;
+                  printf("Process %d granted resouces",i+1);
+                 }
+              }
+               }
+}
+}
+               
+            
+           
+          
+
+
+
+
+
+
diff --git a/C/Bell.c.c b/C/Bell.c.c
new file mode 100644
index 0000000..b1c652a
--- /dev/null
+++ b/C/Bell.c.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+
+int main(void) {
+	int t;
+	scanf("%d",&t);
+	int u[100];
+	int v[100];
+	int w[100];
+	for(int i=0;i<t;i++){
+	    scanf("%d",&u[i]);
+	    scanf("%d",&v[i]);
+	    scanf("%d",&w[i]);
+	}
+	int V;
+	scanf("%d",&V);
+	int arr[V];
+	for(int i=0;i<V;i++){
+	    arr[i]=2147483647;
+	}
+    int src;
+    scanf("%d",&src);
+    arr[src]=0;
+    for(int j=0;j<V-1;j++){
+        for(int k=0;k<t;k++){
+            if(arr[u[k]]!=2147483647 && arr[u[k]]+w[k] < arr[v[k]]){
+                arr[v[k]] = arr[u[k]] + w[k];
+            }
+        }
+    }
+    for(int p=0;p<1;p++){
+        if(arr[u[p]]!=2147483647 && arr[u[p]]+w[p] < arr[v[p]]){
+            printf("Negative cycle detected");
+        }
+    }
+    for(int i=0;i<V;i++){
+    printf("%d",arr[i]);
+    }
+	return 0;
+}
+
diff --git a/C/D&CFact.c b/C/D&CFact.c
new file mode 100644
index 0000000..2c2670d
--- /dev/null
+++ b/C/D&CFact.c
@@ -0,0 +1,11 @@
+#include<stdio.h>
+int main(){
+    int n,fact=1;
+    printf("Enter the no\n");
+    scanf("%d",&n);
+    for(int i=1;i<=n;i++){
+        fact = fact * i;
+    }
+    printf("%d",fact);
+    return 0;
+}
\ No newline at end of file
diff --git a/C/maxSub.c.c b/C/maxSub.c.c
new file mode 100644
index 0000000..f6e8fd0
--- /dev/null
+++ b/C/maxSub.c.c
@@ -0,0 +1,59 @@
+#include <stdio.h>
+int MaxSubArraySum(int *,int,int);
+int submidsum(int,int,int,int *);
+int max(int,int,int);
+int main(void) {
+    int n;
+    scanf("%d",&n);
+    int arr[100];
+    for(int i=0;i<n;i++){
+        scanf("%d",&arr[i]);
+    }
+    int largest = MaxSubArraySum(arr,arr[0],arr[n-1]);
+    printf("%d",largest);
+    
+	return 0;
+}
+
+int MaxSubArraySum(int* arr,int l,int r){
+    if(l==r){
+        return(l);
+    }
+    int mid = (l+r)/2;
+    int largest_sum = max(submidsum(mid,l,r,arr),MaxSubArraySum(arr,l,mid),MaxSubArraySum(arr,mid+1,r));
+    return largest_sum;
+}
+int submidsum(int m,int l,int r,int* arr){
+    int temp= 0;
+    int temp1 =0;
+    int left_sum= arr[m];
+    for(int i=m;i>l-1;i--){
+        temp = temp + arr[i];
+        if(temp>left_sum){
+            left_sum = temp;
+        }
+    }
+    int right_sum = arr[m+1];
+    for(int j=m+1;j<r+1;j++){
+         temp1=temp1+arr[j];
+        if(temp1>right_sum){
+            right_sum=temp1;
+    }
+    }
+    int sub_sum = left_sum + right_sum;
+    return sub_sum;
+}
+int max(int a, int b, int c){
+   int d[3] = {a,b,c};
+    d[0]=a;
+    d[1]=b;
+    d[2]=c;
+    int max=d[0];
+    for(int i=1;i<3;i++){
+        if(max<d[i]){
+            max=d[i];
+        }
+    }
+    return max;
+}
+
diff --git a/C/mer-ins.c.c b/C/mer-ins.c.c
new file mode 100644
index 0000000..d971d4b
--- /dev/null
+++ b/C/mer-ins.c.c
@@ -0,0 +1,105 @@
+// C program for insertion sort
+#include <stdio.h>
+#include <math.h>
+#include<stdlib.h>
+ 
+/* Function to sort an array using insertion sort*/
+void insertionSort(int arr[], int n)
+{
+   int i, key, j;
+   for (i = 1; i < n; i++)
+   {
+       key = arr[i];
+       j = i-1;
+       while (j >= 0 && arr[j] > key)
+       {
+           arr[j+1] = arr[j];
+           j = j-1;
+       }
+       arr[j+1] = key;
+   }
+}
+void print(int arr[], int n)
+{
+   int i;
+   for (i=0; i < n; i++)
+       printf("%d ", arr[i]);
+   printf("\n");
+}
+ 
+int main()
+{
+    int arr[] = {12, 11, 13, 5, 6,1,7,2,90,45,65,66,78,87,45,34,12,32,345,56};
+    int n = sizeof(arr)/sizeof(arr[0]);
+    if(n<20){
+    insertionSort(arr, n);
+    printf("insertionSort implemented\n");
+    print(arr, n);
+    }
+    else{
+     mergeSort(arr, 0, n - 1);
+     printf("mergeSort\n");
+    print(arr, n);
+ 
+    return 0;
+}}
+
+void merge(int arr[], int l, int m, int r)
+{
+    int i, j, k;
+    int n1 = m - l + 1;
+    int n2 =  r - m;
+ 
+
+    int L[n1], R[n2];
+    for (i = 0; i < n1; i++)
+        L[i] = arr[l + i];
+    for (j = 0; j < n2; j++)
+        R[j] = arr[m + 1+ j];
+    i = 0; // Initial index of first subarray
+    j = 0; // Initial index of second subarray
+    k = l; // Initial index of merged subarray
+    while (i < n1 && j < n2)
+    {
+        if (L[i] <= R[j])
+        {
+            arr[k] = L[i];
+            i++;
+        }
+        else
+        {
+            arr[k] = R[j];
+            j++;
+        }
+        k++;
+    }
+    while (i < n1)
+    {
+        arr[k] = L[i];
+        i++;
+        k++;
+    }
+    while (j < n2)
+    {
+        arr[k] = R[j];
+        j++;
+        k++;
+    }
+}
+
+void mergeSort(int arr[], int l, int r)
+{
+    if (l < r)
+    {
+        // Same as (l+r)/2, but avoids overflow for
+        // large l and h
+        int m = l+(r-l)/2;
+ 
+        // Sort first and second halves
+        mergeSort(arr, l, m);
+        mergeSort(arr, m+1, r);
+ 
+        merge(arr, l, m, r);
+    }
+}
+ 
diff --git a/mer-ins.c.c b/mer-ins.c.c
new file mode 100644
index 0000000..d971d4b
--- /dev/null
+++ b/mer-ins.c.c
@@ -0,0 +1,105 @@
+// C program for insertion sort
+#include <stdio.h>
+#include <math.h>
+#include<stdlib.h>
+ 
+/* Function to sort an array using insertion sort*/
+void insertionSort(int arr[], int n)
+{
+   int i, key, j;
+   for (i = 1; i < n; i++)
+   {
+       key = arr[i];
+       j = i-1;
+       while (j >= 0 && arr[j] > key)
+       {
+           arr[j+1] = arr[j];
+           j = j-1;
+       }
+       arr[j+1] = key;
+   }
+}
+void print(int arr[], int n)
+{
+   int i;
+   for (i=0; i < n; i++)
+       printf("%d ", arr[i]);
+   printf("\n");
+}
+ 
+int main()
+{
+    int arr[] = {12, 11, 13, 5, 6,1,7,2,90,45,65,66,78,87,45,34,12,32,345,56};
+    int n = sizeof(arr)/sizeof(arr[0]);
+    if(n<20){
+    insertionSort(arr, n);
+    printf("insertionSort implemented\n");
+    print(arr, n);
+    }
+    else{
+     mergeSort(arr, 0, n - 1);
+     printf("mergeSort\n");
+    print(arr, n);
+ 
+    return 0;
+}}
+
+void merge(int arr[], int l, int m, int r)
+{
+    int i, j, k;
+    int n1 = m - l + 1;
+    int n2 =  r - m;
+ 
+
+    int L[n1], R[n2];
+    for (i = 0; i < n1; i++)
+        L[i] = arr[l + i];
+    for (j = 0; j < n2; j++)
+        R[j] = arr[m + 1+ j];
+    i = 0; // Initial index of first subarray
+    j = 0; // Initial index of second subarray
+    k = l; // Initial index of merged subarray
+    while (i < n1 && j < n2)
+    {
+        if (L[i] <= R[j])
+        {
+            arr[k] = L[i];
+            i++;
+        }
+        else
+        {
+            arr[k] = R[j];
+            j++;
+        }
+        k++;
+    }
+    while (i < n1)
+    {
+        arr[k] = L[i];
+        i++;
+        k++;
+    }
+    while (j < n2)
+    {
+        arr[k] = R[j];
+        j++;
+        k++;
+    }
+}
+
+void mergeSort(int arr[], int l, int r)
+{
+    if (l < r)
+    {
+        // Same as (l+r)/2, but avoids overflow for
+        // large l and h
+        int m = l+(r-l)/2;
+ 
+        // Sort first and second halves
+        mergeSort(arr, l, m);
+        mergeSort(arr, m+1, r);
+ 
+        merge(arr, l, m, r);
+    }
+}
+