commments for 6 and 7. 9 works, 8 does not

Assignment 8/main.c

@@ -0,0 +1,60 @@
+/*
+ * Student: S.K. Soekhlal
+ * Number: 4860632
+ * Assignment: 4.6
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+void swap(double *p, double *q){    /*Swapping*/
+        double temp;
+        temp = *p;
+        *p = *q;
+        *q = temp;
+    }
+
+void sort(double a[], double n){    /*Bubble Sort*/
+    int i,j;
+
+    for (i = 0; i < n - 1; i++){
+        for (j = n - 1; j > i; --j){
+            if (a[j-1] > a[j]){
+                swap(&a[j-1], &a[j]);
+            }
+        }
+    }
+}
+
+int main(){
+    int dim, num;
+    int i,j;
+    double **w;
+    double *length, temp;
+
+    scanf ("%d %d", &dim, &num);    /*read N and M*/
+    w = calloc (num, sizeof (double *)); /*allocate array of M pointers*/
+    for (i = 0; i < num; i++){
+        /*allocate space for N dimensional vector*/
+        w[i] = calloc (dim, sizeof (double));
+        /*read the vector*/
+        for (j = 0; j < dim; j++){
+            scanf ("%le", &w[i][j]);
+        }
+    }
+
+    //length = calloc (num, sizeof (double));
+    for (i = 0; i < num; i++){
+        temp = 0;
+        for (j = 0;j < dim; j++){
+            temp = temp + pow(w[i][j], 2);
+            length[i] = sqrt(temp);
+        }
+    }
+    sort(length, num);
+    for (i = 0; i < num; i++){
+        printf("length = %e \n", length[i]);
+    }
+    return 0;
+}