Submission #798879

#	Time	Username	Problem	Language	Result	Execution time	Memory
798879		vjudge1	Advertisement 2 (JOI23_ho_t2)	C++17	100 / 100	137 ms	8652 KiB

Main

#ifdef Home
#define _GLIBCXX_DEBUG
#endif // Home

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;

main() {
#ifdef Home
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif // Home
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int n;
    cin >> n;
    vector < pair < int, int > > V(n);
    for(auto &[x, e] : V) {
        cin >> x >> e;
    }
    sort(V.begin(), V.end());
    stack < pair < int, int > > st;
    for(auto &[x, e] : V) {
        if(!st.empty() && x - st.top().first <= st.top().second - e) {
            continue;
        }
        for(; !st.empty() && x - st.top().first <= e - st.top().second; st.pop());
        st.push({x, e});
    }
    cout << st.size();
}

Compilation message (stderr)

Main.cpp:12:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   12 | main() {
      | ^~~~

• Subtask 1: 10 / 10
• Subtask 2: 23 / 23
• Subtask 3: 36 / 36
• Subtask 4: 31 / 31