added

C/program-21/program.c

@@ -1,17 +1,26 @@
-#include<stdio.h>
+/*
+You are given a sorted (either in the increasing or in the decreasing order) sequence of numbers, ending with a -1. You can assume that are at least two numbers before the ending -1.
+
+Let us call the sequence x0  x1 ... xn -1.
+
+You have to output the number of distinct elements in the sorted sequence.
+
+Kindly do not use arrays in the code.
+*/
+
+
+#include <stdio.h>
+#include <stdlib.h>
+
 int main()
 {
-    int a,i,count=0;
-    printf("enter the number\n");
-    scanf("%d",&a);
-    for(i=2;i<=a/2;i++)
-    {
-        if(a%i==0)
-        { 
-            count=1;
-        break;
-    }}
-if(count) printf("not prime");
-else printf("prime");
-return 0;
-}
+    int count=0,n=0;
+   while(n!=-1)
+   {
+   scanf("%d",&n);
+    count++;
+
+   }
+printf("%d",count-1);
+    return 0;
+}

C/program-33/program.c

@@ -0,0 +1,14 @@
+/* Arithematic operation using pointers */
+#include <stdio.h>
+void main()
+{
+int a,b;
+int *x,*y;
+scanf("%d%d",&a,&b);
+x=&a;
+y=&b;
+//s=;
+printf("%d\t%d",*x+*y,abs(*x-*y));
+
+}
+

C/program-34/program.c

@@ -0,0 +1,37 @@
+/*In this assignment, you will be given an NxN matrix. You have to
+determine whether the matrix is a triangular matrix.
+First, you will be given N, which is the size of the matrix.
+
+Then you will be given N rows of integers, where each row consists of
+N integers separated by spaces.
+If the input matrix is triangular, then print yes. Otherwise, print
+no. */
+
+
+
+
+
+#include <stdio.h>
+#include <stdlib.h>
+
+int main()
+{
+int a[10][10],n,i,j,flag=0;
+   scanf("%d",&n);
+   for(i=0;i<n;i++)
+   {
+   for(j=0;j<n;j++)
+   {scanf("%d",&a[i][j]);
+   }
+   }
+   for(i=0;i<n;i++)
+   {
+   for(j=0;j<n;j++)
+   {
+   if(!(i==j) &&(i>j || j>i) ) flag=1;
+   }
+   }
+    if(!(flag))printf("no\n");
+    else printf("yes");
+    return 0;
+}

C/program-35/program.c

@@ -0,0 +1,25 @@
+/* You are given a sequence of non-negative integers terminated by -1.
+   You have to output 1 if there are atleast 2 distinct elements in the sequence and 0 if the sequence consists of only 1 integer.
+   Note that -1 is not part of the sequence. The sequence is not necessarily sorted. */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+
+int main()
+{
+    int a=0,n=0,count=0;
+   while(n!=-1)
+   {
+   scanf("%d",&n);
+   if(a!=n)
+   {
+   a=n;
+   count++;
+   }
+
+   }
+if(count>=2) printf("%d",1);
+else printf("%d",0);
+    return 0;
+}

Python/program-2/program.py

@@ -1 +1 @@
-print("Hello, World!")
+print("Hello, World!")