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Submission #1047837

# Submission time Handle Problem Language Result Execution time Memory
1047837 2024-08-07T16:26:45 Z DeathIsAwe Palembang Bridges (APIO15_bridge) C++14
22 / 100
 107 ms 14792 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define int long long

int32_t main() {
    char p, q;
    int s, t, k, n; cin >> k >> n;
    ll ans = 0;
    unordered_map<int,int> bruh;
    unordered_map<int,int> sus;
    vector<int> bridgeplaces;
    vector<pair<int, int>> housework;
    if (k == 2) {
        return 0;
    }

    ll ahead = 0;
    for (int i=0;i<n;i++) {
        cin >> p >> s >> q >> t;
        if (t > s) {
            swap(t, s);
        }
        if (p == q) {
            ans += abs(s - t);
            continue;
        }
        ahead++;
        housework.push_back(make_pair(t, s));
        if (bruh.find(s) == bruh.end()) {
            bruh[s] = 1;
            if (sus.find(s) == sus.end()) {
                bridgeplaces.push_back(s);
            }
        } else {
            bruh[s]++;
        }
        if (sus.find(t) == sus.end()) {
            sus[t] = 1;
            if (bruh.find(t) == bruh.end()) {
                bridgeplaces.push_back(t);
            }
        } else {
            sus[t]++;
        }
    }


    sort(bridgeplaces.begin(), bridgeplaces.end());
    for (pair<int,int> i: housework) {
        ans += i.first + i.second + 1;
    }
    ll curans = ans;
    ll prev = 0;
    ll visitednum = 0;
    for (int i=0;i<bridgeplaces.size();i++) {
        curans += 2 * (bridgeplaces[i] - prev) * (visitednum - ahead);
        //cout << visitednum << ' ' << ahead << ' ' << bridgeplaces[i] << ' ' << curans << '\n';
        if (bruh.find(bridgeplaces[i]) != bruh.end()) {
            visitednum += bruh[bridgeplaces[i]];
        }
        if (sus.find(bridgeplaces[i]) != sus.end()) {
            ahead -= sus[bridgeplaces[i]];
        }
        ans = min(ans, curans);
        prev = bridgeplaces[i];
    }
    cout << ans;
}

Compilation message

bridge.cpp: In function 'int32_t main()':
bridge.cpp:56:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |     for (int i=0;i<bridgeplaces.size();i++) {
      |                  ~^~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 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 444 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 448 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory 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 0 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 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 22 ms 3244 KB Output is correct
13 Correct 98 ms 14640 KB Output is correct
14 Correct 33 ms 4336 KB Output is correct
15 Correct 55 ms 8596 KB Output is correct
16 Correct 37 ms 3788 KB Output is correct
17 Correct 93 ms 14668 KB Output is correct
18 Correct 58 ms 14384 KB Output is correct
19 Correct 107 ms 14792 KB Output is correct
20 Correct 46 ms 3780 KB Output is correct
21 Correct 83 ms 14616 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -