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Cod sursa(job #864497)
#include<fstream>
#include<algorithm>
#include<vector>
#define Nmax 100005
#define d int
using namespace std;
ifstream f("stergeri.in");
ofstream g("stergeri.out");
d n,m,k,a,b;
d A[Nmax],B[Nmax];
int min()
{
nth_element(A+1,A+4,A+m+1);
return A[1];
}
void solve(int k)
{
int i,t;
t=min();
if(k<t)
g<<k;
else
{for(i=1;i<=m;i++)
k=k+B[i]-A[i]+1;
g<<k;
}
}
int main()
{
f>>n>>m>>k;
int i;
for(i=1;i<=m;i++)
f>>A[i]>>B[i];
solve(k);
f.close();
g.close();
return 0;
}