Binge watching

input/code.cpp: In function 'int main()':
input/code.cpp:27:13: warning: unused variable 'startc' [-Wunused-variable]
   27 |         int startc = movies[v].first, endc = movies[v].second;
      |             ^~~~~~
input/code.cpp:28:39: warning: unused variable 'endn' [-Wunused-variable]
   28 |         int startn = movies[b].first, endn = movies[b].second;
      |                                       ^~~~
input/code.cpp:8:12: warning: unused variable 'm' [-Wunused-variable]
    8 |     int n, m, k;
      |            ^
input/code.cpp:8:15: warning: unused variable 'k' [-Wunused-variable]
    8 |     int n, m, k;
      |               ^

#include <algorithm>
#include <iostream>
#include <vector>
using namespace std;

int main() {
    int n, m, k;
    cin >> n;

    vector<pair<int, int> > movies(n);

    for (int i = 0; i < n; ++i) cin >> movies[i].first >> movies[i].second;

    sort(movies.begin(), movies.end());

    //for (int i = 0; i < n; ++i) cout << '('  << movies[i].first << ' ' << movies[i].second << ')' << endl;
    

    //int k = 0;
    //while(k >)

    int v = 0; int b = 0;

    int nmovies = 1;
    for (int i = 0; i <= n; ++i) {
        int startc = movies[v].first, endc = movies[v].second;
        int startn = movies[b].first, endn = movies[b].second;

        //cout << "COMP " << startc << ' ' << endc << ") vs (" << startn << ' ' << endn << endl;



        if (endc <= startn) {
            ++nmovies;

            //++v;
            v = b;
            ++b;
            
        } else {
            ++b;
        }
    }

    cout << nmovies << endl;

}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: WRONG ANSWER

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: WRONG ANSWER

Test 7

Verdict: ACCEPTED

Test 8

Verdict: WRONG ANSWER

Test 9

Verdict: ACCEPTED