intersecția a două șiruri

#include <iostream>
using namespace std;

int n, a[50], b[50], i, maxim, minim;

int main()
{
    cin>>n;
    for(i=1;i<=n;i++)
        cin>>a[i]>>b[i];

    maxim=a[1];
    minim=b[1];

    for(i=2;i<=n;i++)
    {
        if(maxim<a[i])    maxim=a[i];
        if(minim>b[i])    minim=b[i];
    }

    if(maxim<minim)
        cout<<"["<<maxim<<", "<<minim<<"]";
        else    cout<<"disjuncta"<<endl;

return 0;
}