oj.uz

Submission #989537

# Submission time Handle Problem Language Result Execution time Memory
989537 2024-05-28T09:37:00 Z aykhn Palembang Bridges (APIO15_bridge) C++17
22 / 100
 33 ms 7512 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
#define int long long
#define inf 0x3F3F3F3F3F3F3F3F
 
signed main()
{
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  int k, n, S = 0;
  cin >> k >> n;
  vector<int> id, p, s;
  for (int i = 0; i < n; i++)
  {
    char a, b;
    int l, r;
    cin >> a >> l >> b >> r;
    if (l > r) swap(l, r);
    if (a == b) S += r - l;
    else id.push_back(l), id.push_back(r);
  }
  if (id.empty())
  {
    cout << S << '\n';
    return 0;
  }
  sort(id.begin(), id.end());
  p = s = id;
  for (int i = 1; i < p.size(); i++) p[i] += p[i - 1];
  for (int i = (int)s.size() - 2; i >= 0; i--) s[i] += s[i + 1];
  int res = inf;
  for (int i = 0; i < id.size(); i++)
  {
    int sum = 0;
    sum -= p[i];
    if (0 <= i + 1 && i + 1 < s.size()) sum += s[i + 1];
    res = min(res, sum + id[i] * (2 * (i + 1) - (int)id.size()));
  }
  cout << res + S + (int)id.size() / 2 << '\n';
}

Compilation message

bridge.cpp: In function 'int main()':
bridge.cpp:31:21: 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]
   31 |   for (int i = 1; i < p.size(); i++) p[i] += p[i - 1];
      |                   ~~^~~~~~~~~~
bridge.cpp:34:21: 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]
   34 |   for (int i = 0; i < id.size(); i++)
      |                   ~~^~~~~~~~~~~
bridge.cpp:38:29: 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]
   38 |     if (0 <= i + 1 && i + 1 < s.size()) sum += s[i + 1];
      |                       ~~~~~~^~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 352 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 352 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 532 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 352 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 396 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 600 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 356 KB Output is correct
11 Correct 0 ms 352 KB Output is correct
12 Correct 15 ms 5880 KB Output is correct
13 Correct 33 ms 7364 KB Output is correct
14 Correct 22 ms 5844 KB Output is correct
15 Correct 18 ms 4512 KB Output is correct
16 Correct 18 ms 6868 KB Output is correct
17 Correct 21 ms 7512 KB Output is correct
18 Correct 23 ms 7124 KB Output is correct
19 Correct 31 ms 7452 KB Output is correct
20 Correct 20 ms 7120 KB Output is correct
21 Correct 26 ms 7116 KB Output is correct

Subtask #3
0 / 9.0

# 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 Incorrect 0 ms 460 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

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

Subtask #5
0 / 37.0

# 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 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -