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Cod sursa(job #880053)
// operatii.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include "fstream"
using namespace std;
int main()
{
ifstream f("operatii.in");
ofstream g("operatii.out");
int nr;
f>>nr;
long long x=0,e;
long long i,max=0,op=0;
for(i=0;i<nr;i++)
{
f>>e;
if(e>max)
op=op+(e-max);
max=e;
}
g<<op;
return 0;
}