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Submission #236693

# Submission time Handle Problem Language Result Execution time Memory
236693 2020-06-02T21:45:12 Z DS007 Palembang Bridges (APIO15_bridge) C++14
100 / 100
 329 ms 15336 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long

const int N = 1e5;
int n, k;
vector<pair<int, int>> v;
int l[N], r[N];

template<class T>
void solve(T it, T end, int *result) {
    multiset<int> ls, mr;
    int sls = 0, smr = 0, c = 0;

    while (it != end) {
        ls.insert(it->first);
        sls += it->first;
        mr.insert(it->second);
        smr += it->second;

        if (*ls.rbegin() > *mr.begin()) {
            sls += *mr.begin() - *ls.rbegin();
            smr += *ls.rbegin() - *mr.begin();
            ls.insert(*mr.begin());
            mr.insert(*ls.rbegin());
            ls.erase(ls.find(*ls.rbegin()));
            mr.erase(mr.find(*mr.begin()));
        }

        result[c++] = smr - sls;
        it++;
    }
}

int solveTestCase() {
    cin >> k >> n;

    int temp = 0;
    for (int i = 0; i < n; i++) {
        char p, q;
        int s, t;
        cin >> p >> s >> q >> t;
        if (p == q)
            temp += abs(t - s);
        else
            v.emplace_back(s, t);
    }

    n = v.size();
    sort(v.begin(), v.end(), [](auto &p1, auto &p2) {
       return p1.first + p1.second < p2.first + p2.second;
    });

    solve(v.begin(), v.end(), l);
    solve(v.rbegin(), v.rend(), r);

    int ans = temp + n + min(l[n - 1], r[n - 1]);
    if (k == 1)
        return cout << ans, 0;

    for (int i = 0; i < n - 1; i++)
        ans = min(ans, temp + n + l[i] + r[n - 2 - i]);
    cout << ans;
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int test = 1;
    // cin >> test;
    while (test--)
        solveTestCase();
}

Compilation message

bridge.cpp: In function 'long long int solveTestCase()':
bridge.cpp:64:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 512 KB Output is correct
4 Correct 6 ms 384 KB Output is correct
5 Correct 6 ms 512 KB Output is correct
6 Correct 5 ms 512 KB Output is correct
7 Correct 6 ms 512 KB Output is correct
8 Correct 6 ms 512 KB Output is correct
9 Correct 6 ms 512 KB Output is correct
10 Correct 6 ms 512 KB Output is correct
11 Correct 6 ms 512 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 512 KB Output is correct
4 Correct 6 ms 512 KB Output is correct
5 Correct 6 ms 512 KB Output is correct
6 Correct 5 ms 512 KB Output is correct
7 Correct 6 ms 512 KB Output is correct
8 Correct 6 ms 512 KB Output is correct
9 Correct 6 ms 512 KB Output is correct
10 Correct 5 ms 512 KB Output is correct
11 Correct 6 ms 512 KB Output is correct
12 Correct 152 ms 13676 KB Output is correct
13 Correct 311 ms 15208 KB Output is correct
14 Correct 267 ms 12844 KB Output is correct
15 Correct 145 ms 9068 KB Output is correct
16 Correct 143 ms 14564 KB Output is correct
17 Correct 211 ms 15336 KB Output is correct
18 Correct 137 ms 14964 KB Output is correct
19 Correct 210 ms 15208 KB Output is correct
20 Correct 184 ms 14824 KB Output is correct
21 Correct 217 ms 14952 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 6 ms 512 KB Output is correct
14 Correct 6 ms 512 KB Output is correct
15 Correct 6 ms 512 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 6 ms 384 KB Output is correct
19 Correct 5 ms 512 KB Output is correct
20 Correct 6 ms 512 KB Output is correct
21 Correct 6 ms 512 KB Output is correct
22 Correct 6 ms 512 KB Output is correct
23 Correct 5 ms 512 KB Output is correct
24 Correct 6 ms 512 KB Output is correct

Subtask #5
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 512 KB Output is correct
14 Correct 6 ms 432 KB Output is correct
15 Correct 6 ms 512 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 512 KB Output is correct
20 Correct 6 ms 512 KB Output is correct
21 Correct 6 ms 512 KB Output is correct
22 Correct 6 ms 512 KB Output is correct
23 Correct 6 ms 512 KB Output is correct
24 Correct 6 ms 512 KB Output is correct
25 Correct 154 ms 13764 KB Output is correct
26 Correct 248 ms 13800 KB Output is correct
27 Correct 324 ms 14568 KB Output is correct
28 Correct 329 ms 15284 KB Output is correct
29 Correct 326 ms 15192 KB Output is correct
30 Correct 132 ms 8304 KB Output is correct
31 Correct 135 ms 14568 KB Output is correct
32 Correct 224 ms 15208 KB Output is correct
33 Correct 131 ms 14824 KB Output is correct
34 Correct 208 ms 15284 KB Output is correct
35 Correct 179 ms 14696 KB Output is correct
36 Correct 211 ms 14936 KB Output is correct
37 Correct 104 ms 13672 KB Output is correct