Program to arrange the number in decending order

C      Program to arrange the number in decending order
        dimension a(100)
        write(*,*)'Enter the no. of terms:'
        read(*,*)n
        write(*,*)'Enter the numbers:'
        do i=1,n
        read(*,*)a(i)
        end do
        do i=1,n-1
        do j=i+1,n
        if (a(i).lt.a(j))then
        temp=a(i)
        a(i)=a(j)
        a(j)=temp
        end if
        end do
        end do
        write(*,*)'The numbers in decending order is:'
        do i=1,n
        write(*,*)a(i)
        end do
        end

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How to Install CERN ROOT on Ubuntu: A Step-by-Step Guide

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Use of TClonesArray Class

void write { TClonesArray * arr = new TClonesArray ( " TVector3 " ); TClonesArray & ar = * arr ; TFile * file = new TFile ( " file.root " , " recreate " ); TTree * tree = new TTree ( " tcl " , " tcl " ); tree -> Branch ( " array " , & arr ); TRandom2 * rand = new TRandom2 ( 1 ); for ( int i = 0 ; i < 100 ; i ++) { arr -> Clear (); for ( int j = 0 ; j < 1000 ; j ++) { double x = rand -> Rndm (); double y = rand -> Rndm (); double z = rand -> Rndm (); new ( ar [ j ]) TVector3 ( x , y , z ); } tree -> Fill (); } file -> Write (); file -> Close (); } void read () { TFile * file = new TFile ( " file.root " ); TTree * tree = ( TTree *) file -> Get ( " tcl " ); TClonesArray * arr = new ...

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