Cod sursa(job #481868)

Utilizator R.A.RFMI Romila Remus Arthur R.A.R Data 1 septembrie 2010 21:01:36
Problema Operatii Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.35 kb
Raporteaza aceasta sursa 
#include <fstream>

using namespace std;

ifstream in("operatii.in");
ofstream out("operatii.out");

long nr,nr1,N,op;

inline long modul(long a){ if(a<0)return -a; else return a;}

int main()
{
    in>>N;
    while(N--)
    {
        in>>nr1;
        op=op + modul(nr1-nr);
        nr=nr1;
    }
    out<<(op+nr1)/2;
    return 0;
}