oj.uz

답안 #932475

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
932475 2024-02-23T13:26:42 Z VMaksimoski008 Palembang Bridges (APIO15_bridge) C++14
22 / 100
 77 ms 2972 KB 
#include <bits/stdc++.h>

#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
//#define int long long

using namespace std;

using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

const int mod = 1e9 + 7;
const int LOG = 20;
const int maxn = 1e5 + 5;
const double eps = 1e-9;

priority_queue<int> L;
priority_queue<int, vector<int>, greater<int> > R;
ll sumL = 0, sumR = 0;

void insert(int x) {
    int med = (L.empty() ? 1e9 + 1 : L.top());
    if(x <= med) L.push(x), sumL += x;
    else R.push(x), sumR += x;

    if(L.size() > R.size() + 1) {
        R.push(L.top());
        sumL -= L.top();
        sumR += L.top();
        L.pop();
    } else if(R.size() > L.size()) {
        L.push(R.top());
        sumL += R.top();
        sumR -= R.top();
        R.pop();
    }
}

int32_t main() {
    int k, n;
    cin >> k >> n;

    ll ans = 0, ans2 = 0;
    vector<pii> v;
    v.push_back({ 0, 0 });

    for(int i=0; i<n; i++) {
        char a, b;
        int c, d;
        cin >> a >> c >> b >> d;

        if(a == b) {
            ans2 += abs(c - d);
        } else {
            v.push_back({ c, d });
            ans2++;
        }
    }

    if(k == 1) {
        for(int i=1; i<v.size(); i++) {
            insert(v[i].first);
            insert(v[i].second);
        }

        ans = sumR - sumL;
    } else {
        ans = 1e18;

        sort(1+all(v), [&](pii &a, pii &b) { return (a.first + a.second) < (b.first + b.second); });

        for(int i=1; i<v.size(); i++) {
            ll res = 0;
            sumL = sumR = 0;

            while(!L.empty()) L.pop();
            while(!R.empty()) R.pop();

            for(int j=1; j<=i; j++) {
                insert(v[j].first);
                insert(v[j].second);
            }

            res += sumR - sumL;

            sumL = sumR = 0;
            while(!L.empty()) L.pop();
            while(!R.empty()) R.pop();

            for(int j=i+1; j<v.size(); j++) {
                insert(v[j].first);
                insert(v[j].second);
            }

            res += sumR - sumL;

            ans = min(ans, res);
        }
    }

    cout << ans + ans2 << '\n';
    return 0;
}

Compilation message

bridge.cpp: In function 'int32_t main()':
bridge.cpp:65:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |         for(int i=1; i<v.size(); i++) {
      |                      ~^~~~~~~~~
bridge.cpp:76:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |         for(int i=1; i<v.size(); i++) {
      |                      ~^~~~~~~~~
bridge.cpp:94:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   94 |             for(int j=i+1; j<v.size(); j++) {
      |                            ~^~~~~~~~~

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 40 ms 2492 KB Output is correct
13 Correct 75 ms 2752 KB Output is correct
14 Correct 57 ms 2700 KB Output is correct
15 Correct 44 ms 1484 KB Output is correct
16 Correct 55 ms 2972 KB Output is correct
17 Correct 72 ms 2248 KB Output is correct
18 Correct 77 ms 2504 KB Output is correct
19 Correct 75 ms 2808 KB Output is correct
20 Correct 67 ms 2624 KB Output is correct
21 Correct 70 ms 2608 KB Output is correct

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -