oj.uz

답안 #699347

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
699347 2023-02-16T15:32:36 Z CatalinT Palembang Bridges (APIO15_bridge) C++17
0 / 100
 1 ms 320 KB 
#include <vector>
#include <iostream>
#include <cassert>
#include <algorithm>
#include <numeric>
#include <iostream>
#include <set>
#include <map>
#include <string>
#include <unordered_map>
#include <functional>
#include <bitset>
#include <sstream>

using namespace std;

using int64 = long long;

int N, M, K;
vector<pair<int64, int64>> segments;

vector<int64> X;
vector<int64> vec;

vector<int> cnt;

map<int64, int> idx;

int64 solve1brute() {
    int64 res = (1LL<<60);
    for (int i = 0; i < N; i++) {
        int64 cur = 0;
        for (auto & s : segments) {
            if (s.second < vec[i]) {
                cur += 2 * (vec[i] - s.second); 
            } else if (s.second >= vec[i] && s.first <= vec[i]) {
                // nada
            } else {
                cur += 2 * (s.first - vec[i]);
            }
        }
        res = min(res, cur);
    }
    return res;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int64 res = 0;

    cin >> N >> K;

    set<int> uniq;

    for (int i = 0; i < N; i++) {
        char z1, z2;
        int x1, x2;

        cin >> z1 >> x1 >> z2 >> x2;

        res += abs(x1 - x2);

        if (z1 != z2) {
            segments.emplace_back(min(x1, x2), max(x1, x2));
            uniq.insert(x1);
            uniq.insert(x2);
        }
    }

    if (!size(segments)) {
        cout << res << "\n";
        return 0;
    }

    vector<int> vec(begin(uniq), end(uniq));
    N = size(vec);

    for (int i = 0; i < N; i++) {
        idx[vec[i]] = i;
    }

    for (auto & s : segments) {
        cnt[s.first]++;
        cnt[s.second]--;
    }

    M = size(segments);

    // need at least one bridge;

    cout << solve1brute() << "\n";

    return 0;
}

Subtask #1
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 0 ms 320 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 0 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 212 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 212 KB Output isn't correct
2 Halted 0 ms 0 KB -