Merge pull request #759 from Mayuri-cell/Mayuri-cell-patch-8

The position pairs to get the sum query.

Author: Saviour1001

Arrays/sum_positions.cpp

@@ -0,0 +1,147 @@
+/* Title : User need to enter the elements he wants to enter .
+          The possible pairs of positions will be found whose sum
+           will equal to the query number accepted .
+
+           ex : Elements : 2 3 4 5
+                Query element : 8
+                Output : Addition of elements present at position 2 and 4 = 8.
+
+*/
+#include<iostream>
+#include<cstdlib>
+#include<conio.h>
+int fact (int n);
+using namespace std;
+
+int main()
+{
+  int i , j ,n,th;
+  int opt , count=0;
+
+
+do
+  {
+  cout<<"\n Enter the total number of elements :   \n"<<endl;  // Enter more than 1.
+  cin>>n;
+  if(n<=1)
+  {
+    cout<<"\n Invalid Input .\n Try again later ! "<<endl;
+    exit(0);
+  }
+  int fac=fact(n);
+  int a[n];
+  cout<<"\n Enter the "<<n<<" elements : \n"<<endl;
+  for(i=0;i<n;i++)
+  {
+    cin>>a[i];
+  }
+
+ do
+  {
+  cout<<"\n Enter the query you wish to choose  : ";
+  cin>>th;
+
+  cout<<"\n";
+  count=0;
+  for(i=0;i<n;i++)
+  {
+    for(j=i+1;j<n;j++)
+    {
+       if(a[i]+a[j]==th)
+       {
+         cout<<" Found : "<<" Addition of elements at positions "<<i+1<<" and "<<j+1<<endl;
+       }
+
+       else
+       { count++ ; }
+    }
+  }
+
+if(count==fac)
+{
+  cout<< "\n  Oops ! \n  Not found .\n"<<endl;
+}
+
+  cout<<"\n Do you wish to check for another query with same data ? \n 1.Yes 2.Press any to do not\n"<<endl;    // Press 1 to contiune only .
+   cin>>opt;                                                                                      // It will be done on the same data sets .
+ }while(opt==1);
+
+   cout<<"\n Do you wish to continue ? \n Press 1 to continue or any to stop . \n"<<endl;   // Press 1 to continuw\e .
+    cin>>opt;
+  }while(opt==1);                                              // You will need to enter the data of arrays and query again .
+}
+
+int fact(int n)
+{
+  int i=n-1, sum=0;
+  while(i>=1)
+  {
+    sum=sum+i ;
+    i--;
+  }
+  return sum;
+}
+
+/*
+Enter the total number of elements :
+
+7
+
+Enter the 7 elements :
+
+106
+-53
+0
+53
+21
+4
+23
+
+Enter the query you wish to choose  : 53
+
+Found :  Addition of positions 1 and 2
+Found :  Addition of positions 3 and 4
+
+Do you wish to check for another query with same data ?
+1.Yes 2.Press any to do not
+
+1
+
+Enter the query you wish to choose  : 4
+
+Found :  Addition of positions 3 and 6
+
+Do you wish to check for another query with same data ?
+1.Yes 2.Press any to do not
+
+2
+
+Do you wish to continue ?
+
+1
+
+
+Enter the total number of elements :
+3
+
+Enter the 3 elements :
+12
+22
+0
+
+Enter the query you wish to choose  : 23
+
+
+ Oops !
+ Not found .
+
+
+Do you wish to check for another query with same data ?
+1.Yes 2.Press any to do not
+
+2
+
+Do you wish to continue ?
+
+2
+*/