Binge watching

#include <iostream>
#include <vector>
#include <algorithm>
#include <string>

using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    // freopen("input.txt", "r", stdin); // TODO: REMOVE THIS YOU STUPID ****

    int n;
    cin >> n;
    vector<pair<int, int> > times(n);
    for (int i = 0; i < n; i++) {
        int a, b;
        cin >> a >> b;
        times[i] = make_pair(b, a);
    }
    sort(times.begin(), times.end());
    int ans = 0;
    int curEnd = -1;
    for (int i = 0; i < n; i++) {
        auto p = times[i];
        if (p.second >= curEnd) {
            ans += 1;
            curEnd = p.first;
        }
    }
    cout << ans;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED