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Cod sursa(job #204315)
#include<fstream.h>
#define MAX 2000000000
long n,m,k,a[MAX],pi,pf;
void sterge()
{
long i,nr;
nr=pf-pi+1;
n-=nr;
for(i=pi;i<=n;i++)
a[i]=a[i+nr];
}
void afisare()
{
ofstream fout("stergeri.out");
fout<<a[k]<<'\n';
fout.close();
}
void citire()
{
long i;
ifstream fin("stergeri.in");
fin>>n>>m>>k;
for(i=1;i<=n;i++)
a[i]=i;
for(i=1;i<=m;i++)
{
fin>>pi>>pf;
sterge();
}
fin.close();
}
int main()
{
citire();
afisare();
return 0;
}