oj.uz

Submission #519200

# Submission time Handle Problem Language Result Execution time Memory
519200 2022-01-26T01:00:16 Z XII trapezoid (balkan11_trapezoid) C++17
100 / 100
 96 ms 7480 KB 
#include <bits/stdc++.h>
using namespace std;

using ll = long long;

#define fi first
#define se second
#define mp make_pair
#define eb emplace_back
#define ALL(x) (x).begin(), (x).end()

#define FOR(i, a, b) for(int i = (a); i < (b); ++i)
#define FORU(i, a, b) for(int i = (a); i <= (b); ++i)
#define FORD(i, a, b) for(int i = (a); i >= (b); --i)

#define IOS cin.tie(0)->sync_with_stdio(false);
#define PROB "balkan11_trapezoid"
void Fi(){
    if(fopen(PROB".inp", "r")){
        freopen(PROB".inp", "r", stdin);
        freopen(PROB".out", "w", stdout);
    }
}

const int N = 1e5 + 1;
const int MOD = 30013;
int n;
vector<int> Y;
using pi = pair<int, int>;
pi save[N];
vector<pair<pi, pi>> ev;

pi bit[N * 2];

pi comb(const pi &a, const pi &b){
    return a.fi == b.fi ? mp(a.fi, (a.se + b.se) % MOD)
                        : (a.fi > b.fi) ? a : b;
}

void update(int i, const pi &v){
    while(i <= Y.size()){
        bit[i] = comb(bit[i], v);
        i += i & -i;
    }
}
pi query(int i){
    pi ans = {0, 0};
    while(1 <= i){
        ans = comb(ans, bit[i]);
        i -= i & -i;
    }
    return ans;
}

int getY(const int &y){
    return lower_bound(ALL(Y), y) - Y.begin() + 1;
}

int main(){
    IOS;
    Fi();
    cin >> n;
    Y.eb(0);
    FORU(i, 1, n){
        int a, b, c, d;
        cin >> a >> b >> c >> d;
        ev.eb(mp(a, c), mp(-1, i));
        ev.eb(mp(b, d), mp(+1, i));
        Y.eb(c), Y.eb(d);
    }
    sort(ALL(Y));
    Y.resize(unique(ALL(Y)) - Y.begin());
    sort(ALL(ev));
    pi ans = {0, 0};
    update(1, {0, 1});
    for(auto a: ev){
//        cout << a.fi.fi << " " << a.fi.se << "\n";
        if(a.se.fi == -1){
            save[a.se.se] = query(getY(a.fi.se));
            save[a.se.se].fi += 1;
            ans = comb(ans, save[a.se.se]);
        } else update(getY(a.fi.se), save[a.se.se]);
    }
    cout << ans.fi << " " << ans.se;
    return 0;
}

Compilation message

trapezoid.cpp: In function 'void update(int, const pi&)':
trapezoid.cpp:41:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |     while(i <= Y.size()){
      |           ~~^~~~~~~~~~~
trapezoid.cpp: In function 'void Fi()':
trapezoid.cpp:20:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |         freopen(PROB".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
trapezoid.cpp:21:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |         freopen(PROB".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 2 ms 460 KB Output is correct
6 Correct 3 ms 588 KB Output is correct
7 Correct 3 ms 588 KB Output is correct
8 Correct 4 ms 844 KB Output is correct
9 Correct 9 ms 1108 KB Output is correct
10 Correct 14 ms 1736 KB Output is correct
11 Correct 20 ms 2100 KB Output is correct
12 Correct 45 ms 3956 KB Output is correct
13 Correct 52 ms 4504 KB Output is correct
14 Correct 69 ms 5944 KB Output is correct
15 Correct 69 ms 5992 KB Output is correct
16 Correct 94 ms 6368 KB Output is correct
17 Correct 96 ms 6684 KB Output is correct
18 Correct 67 ms 6984 KB Output is correct
19 Correct 93 ms 7232 KB Output is correct
20 Correct 89 ms 7480 KB Output is correct