Cod sursa(job #2086172)
Utilizator | Dark Viper darkviper17 | Data | 11 decembrie 2017 16:36:55 |
---|---|---|---|
Problema | Heavy metal | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.56 kb |
#include <iostream>
#include <fstream>
#include <vector>
#include <algorithm>
using namespace std;
ifstream fin("heavymetal.in");
ofstream fout("heavymetal.out");
vector <pair<int, int>>v;
int main()
{
long long n, i, start, final, var, total=0;
fin>>n;
for(i=1; i<=n; i++)
{
fin>>start>>final;
v.push_back(make_pair(final, start));
}
sort(v.begin(), v.end());
var=v[0].first;
for(i=1; i<n; i++)
{
if(var<=v[i].second)
{
total += abs(v[i].first - var);
var=v[i].first;
}
}
fout<<total;
return 0;
}