oj.uz

Submission #744593

# Submission time Handle Problem Language Result Execution time Memory
744593 2023-05-18T19:13:17 Z Desh03 Palembang Bridges (APIO15_bridge) C++17
0 / 100
 1 ms 468 KB 
#include <bits/stdc++.h>
using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    long long k, n, ans = 1e18, ss = 0, S = 0, S2 = 0;
    cin >> k >> n;
    vector<long long> a, b;
    for (int i = 0; i < n; i++) {
        char x, y;
        int s, t;
        cin >> x >> s >> y >> t;
        if (x == y) {
            ss += abs(s - t);
            continue;
        }
        if (x == 'A') a.push_back(s), b.push_back(t);
        else a.push_back(t), b.push_back(s);
    }
    sort(a.begin(), a.end());
    sort(b.begin(), b.end());
    n = a.size();
    vector<long long> pre1(n + 1), pre2(n + 1), v;
    for (int i = 0; i < n; i++) pre1[i + 1] = pre1[i] + a[i], S += a[i];
    for (int i = 0; i < n; i++) pre2[i + 1] = pre2[i] + b[i], S2 += b[i];
    set<long long> to;
    for (auto x : a) v.push_back(x);
    for (auto y : b) v.push_back(y);
    to.insert(v[0]);
    for (int i = 0; i < v.size() - 1; i++) {
        to.insert(v[i + 1]);
        to.insert(v[i] + v[i + 1] >> 1);
    }
    for (auto x : to) {
        long long k = upper_bound(a.begin(), a.end(), x) - a.begin();
        long long k2 = upper_bound(b.begin(), b.end(), x) - b.begin();
        ans = min(ans, 2 * (x * (k + k2 - n) - pre1[k] - pre2[k2]));
    }
    cout << ans + S + S2 + ss + n << '\n';
}

Compilation message

bridge.cpp: In function 'int main()':
bridge.cpp:31:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |     for (int i = 0; i < v.size() - 1; i++) {
      |                     ~~^~~~~~~~~~~~~~
bridge.cpp:33:24: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   33 |         to.insert(v[i] + v[i + 1] >> 1);

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 468 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 340 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 340 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 468 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 340 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -