oj.uz

답안 #560045

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
560045 2022-05-11T03:14:49 Z Yazan_Alattar Cigle (COI21_cigle) C++14
0 / 100
 2 ms 724 KB 
    #include <bits/stdc++.h>
    using namespace std;
    typedef long long ll;
    typedef unsigned long long ull;
    #define F first
    #define S second
    #define pb push_back
    #define endl "\n"
    #define all(x) x.begin(), x.end()
    const int M = 2000007;
    const ll inf = 2e9;
    const ll mod = 1e9 + 7;
    const double pi = acos(-1);
    const double eps = 1e-6;
    const int dx[] = {0, -1, 0, 1}, dy[] = {1, 0, -1, 0};
    const int block = 320;

    vector <ll> v;
    ll n, k, x, l[M], t[M], r[M], cnt[M], tot[M], pref[M], ans;

    void add(ll pos){
        if(pos < 0 || pos > 1e9) return;
        v.pb(pos);
        v.pb(pos + x - 1);
        v.pb(pos - x + 1);
        return;
    }

    ll get(ll val){
        return lower_bound(all(v), val) - v.begin() + 1;
    }

    int main(){
        ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
        cin >> n >> k >> x;
        for(int i = 1; i <= n; ++i){
            cin >> l[i] >> t[i] >> r[i];

            for(int j = -2; j <= 4; ++j){
                add(l[i] + j);
                add(l[i] + t[i] + j);
                add(r[i] + j);
            }
        }

        sort(all(v));
        v.erase(unique(all(v)), v.end());

        for(int i = 1; i <= n; ++i){
            int en = get(r[i] + 1);
            ++cnt[get(l[i])];
            --cnt[en];

            ++tot[get(l[i] + t[i])];
            --tot[en];
        }
        for(int i = 1; i <= v.size(); ++i) cnt[i] += cnt[i - 1], tot[i] += tot[i - 1];

        for(int i = 1; i <= v.size(); ++i){
            pref[i] = pref[i - 1];
            if(cnt[i - 1] >= k) pref[i] += (v[i - 1] - v[i - 2]) * tot[i - 1]; // [l, r[
        }

    //    for(auto i : v) cout << i << " "; cout << endl;
    //    for(int i = 1; i <= v.size(); ++i) cout << cnt[i] << " "; cout << endl;
    //    for(int i = 1; i <= v.size(); ++i) cout << tot[i] << " "; cout << endl;
    //    for(int i = 1; i <= v.size(); ++i) cout << pref[i] - pref[i - 1] << " "; cout << endl;

        for(int i = 0; i < v.size(); ++i){
            if(v[i] + x - 1 > 1e9) continue;

            int posi = i + 1;
            int posj = get(v[i] + x - 1);

            ans = max(ans, pref[posj] - pref[posi] + (cnt[posj] >= k) * tot[posj]);
        }
        cout << ans << endl;
        return 0;
    }

Compilation message

cigle.cpp: In function 'int main()':
cigle.cpp:57:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |         for(int i = 1; i <= v.size(); ++i) cnt[i] += cnt[i - 1], tot[i] += tot[i - 1];
      |                        ~~^~~~~~~~~~~
cigle.cpp:59:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |         for(int i = 1; i <= v.size(); ++i){
      |                        ~~^~~~~~~~~~~
cigle.cpp:69:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |         for(int i = 0; i < v.size(); ++i){
      |                        ~~^~~~~~~~~~

Subtask #1
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 340 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 340 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 724 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 340 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 52.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 340 KB Output isn't correct
2 Halted 0 ms 0 KB -