문제
풀이
#include <algorithm>
#include <iostream>
using namespace std;
void solve(void) {
long long n, a, b, c, d;
cin >> n >> a >> b >> c >> d;
cout << max(0LL, min(b, n - c) - max(a, n - d) + 1);
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
solve();
return 0;
}