func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 1e5 + 7;   pair<int, int> a[N];   int n;   int main() {     ios_base::sync_with_stdio(0);     cin >> n;     for (int i = 0; i < n; ++i) cin >> a[i].first >> a[i].second;     sort(a, a + n);     int ans = 0;     int mxb = -1;     for (int i = 0; i < n; ++i) {       if (a[i].second < mxb)         ++ans;       else         mxb = a[i].second;     }     cout << ans <<   n ;     return 0;   }   