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Submission #1028719

# Submission time Handle Problem Language Result Execution time Memory
1028719 2024-07-20T07:34:51 Z vjudge1 Palembang Bridges (APIO15_bridge) C++17
0 / 100
 1 ms 348 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);

        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
0 / 8.0

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

Subtask #2
0 / 14.0

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

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 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 348 KB Output isn't correct
2 Halted 0 ms 0 KB -