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Submission #1028721

# Submission time Handle Problem Language Result Execution time Memory
1028721 2024-07-20T07:35:32 Z vjudge1 Palembang Bridges (APIO15_bridge) C++17
22 / 100
 87 ms 6484 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;

ll n, k, sm, cnt;

vector<pair<ll, ll>> vec;
vector<ll> l, r, both;

int main(){
    cin >> k >> n;
    for (ll i = 0; i < n; i ++){
        char p, q;
        ll s, t;
        cin >> p >> s >> q >> t;

        if (s > t) swap(s, t);

        if (p == q){
            cnt++;
            sm += t - s;
        }
        else{
            vec.push_back({s, t});
            l.push_back(s);
            r.push_back(t);

            both.push_back(s);
            both.push_back(t);
        }
    }

    sort(vec.begin(), vec.end());
    sort(l.begin(), l.end());
    sort(r.begin(), r.end());
    sort(both.begin(), both.end());

    ll ans = 1e18;
    if (k == 1){
        ll prev = 0;
        ll after = 0;
        for (ll i = 1; i < both.size(); i ++)
            after += both[i] - both[0];
        ans = min(ans, sm + after + n - cnt);

        for (ll i = 1; i < both.size(); i ++){
            after -= (both[i] - both[i - 1]) * (both.size() - i);
            prev += (both[i] - both[i - 1]) * i;
            ans = min(ans, sm + prev + after + n - cnt);
        }
        cout << ans << endl;
    }
}

Compilation message

bridge.cpp: In function 'int main()':
bridge.cpp:43:26: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |         for (ll i = 1; i < both.size(); i ++)
      |                        ~~^~~~~~~~~~~~~
bridge.cpp:47:26: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |         for (ll i = 1; i < both.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 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 344 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

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory 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 2 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 40 ms 6344 KB Output is correct
13 Correct 87 ms 6484 KB Output is correct
14 Correct 62 ms 5944 KB Output is correct
15 Correct 49 ms 3580 KB Output is correct
16 Correct 50 ms 6448 KB Output is correct
17 Correct 62 ms 6368 KB Output is correct
18 Correct 59 ms 6448 KB Output is correct
19 Correct 85 ms 6480 KB Output is correct
20 Correct 58 ms 6452 KB Output is correct
21 Correct 83 ms 6364 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 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -