oj.uz

답안 #970975

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
970975 2024-04-27T16:20:09 Z njoop Palembang Bridges (APIO15_bridge) C++14
22 / 100
 101 ms 11376 KB 
#include <bits/stdc++.h>
#define ll long long
using namespace std;

int n, k, in1, in2, mxl, mnr;
char c1, c2;
vector<pair<int, int>> v;
multiset<int> s1, s2;
ll pref[100010], suff[100010], su1, su2, res, ans;

bool cmp(const pair<int, int> &a, const pair<int, int> &b) {
    return a.first+a.second < b.first+b.second;
}

void insertVal(int in) {
    if(s1.size() <= s2.size()) {
        s1.insert(in);
        su1 += in;
    } else {
        s2.insert(in);
        su2 += in;
    }
    if(s1.size() && s2.size() && *s1.rbegin() > *s2.begin()) {
        mxl = *s1.rbegin();
        mnr = *s2.begin();
        su1 += mnr - mxl;
        su2 += mxl - mnr;
        s1.insert(mnr);
        s1.erase(s1.find(mxl));
        s2.insert(mxl);
        s2.erase(s2.find(mnr));
    }
}

int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin >> k >> n;
    for(int i=0; i<n; i++) {
        cin >> c1 >> in1 >> c2 >> in2;
        if(c1 == c2) {
            res += abs(in1 - in2);
            continue;
        }
        v.push_back({in1, in2});
    }
    sort(v.begin(), v.end(), cmp);
    res += v.size();
    for(int i=0; i<v.size(); i++) {
        insertVal(v[i].first);
        insertVal(v[i].second);
        pref[i] = (s1.size()-s2.size())*(*s1.rbegin()) - su1 + su2;
    }
    ans = pref[v.size()-1];
    if(k == 1) {
        cout << ans+res;
        return 0;
    }
    s1.clear();
    s2.clear();
    su1 = 0;
    su2 = 0;
    for(int i=v.size()-1; i>0; i--) {
        insertVal(v[i].first);
        insertVal(v[i].second);
        suff[i] = (s1.size()-s2.size())*(*s1.rbegin()) - su1 + su2;
    }
    for(int i=0; i<v.size()-2; i++) {
        ans = min(ans, pref[i]+suff[i+1]);
    }
    cout << ans+res;
    return 0;
}

Compilation message

bridge.cpp: In function 'int main()':
bridge.cpp:48:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |     for(int i=0; i<v.size(); i++) {
      |                  ~^~~~~~~~~
bridge.cpp:67:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |     for(int i=0; i<v.size()-2; i++) {
      |                  ~^~~~~~~~~~~

Subtask #1
8.0 / 8.0

# 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 344 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 344 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 0 ms 348 KB Output is correct
3 Correct 1 ms 344 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 344 KB Output is correct
7 Correct 1 ms 472 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 66 ms 11196 KB Output is correct
13 Correct 101 ms 11208 KB Output is correct
14 Correct 87 ms 10188 KB Output is correct
15 Correct 55 ms 6728 KB Output is correct
16 Correct 61 ms 11208 KB Output is correct
17 Correct 81 ms 11224 KB Output is correct
18 Correct 65 ms 11184 KB Output is correct
19 Correct 90 ms 11216 KB Output is correct
20 Correct 74 ms 11216 KB Output is correct
21 Correct 85 ms 11376 KB Output is correct

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 600 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 604 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -