oj.uz

Submission #886010

# Submission time Handle Problem Language Result Execution time Memory
886010 2023-12-11T10:54:43 Z abysmal Palembang Bridges (APIO15_bridge) C++14
100 / 100
 74 ms 6744 KB 
#include<iostream>
#include<stdio.h>
#include<stdint.h>
#include<iomanip>
#include<algorithm>
#include<utility>
#include<vector>
#include<stack>
#include<queue>
#include<set>
#include<map>
#include<deque>
#include<math.h>
#include<assert.h>
#include<string.h>
#include<chrono>
#include<bitset>

using namespace std;
using namespace std::chrono;

const double epsi = (double) 1e-6;
const int64_t INF = (int64_t) 1e18 + 100;
const int64_t mINF = (int64_t) 1e9 + 5;
const int64_t MOD = 1e9 + 7;
const int64_t MOD2 = 998244353;
const int nbit = 24;
const int ndig = 10;
const int nchar = 26;
const int p1 = 31;
const int p2 = 53;
const int D = 4;
int dr[D] = {-1, 0, 1, 0};
int dc[D] = {0, 1, 0, -1};
const int Dk = 8;
int drk[Dk] = {2, 2, -2, -2, 1, 1, -1, -1};
int dck[Dk] = {1, -1, 1, -1, 2, -2, 2, -2};

bool mod_cmp(pair<int, int>& t1, pair<int, int>& t2)
{
    return t1.first + t1.second < t2.first + t2.second;
}

struct Solution
{
    int k; int n;
    int64_t suml; int64_t sumr;
    priority_queue<int64_t> left;
    priority_queue<int64_t> right;
    vector<pair<int, int> > v;
    Solution() {}

    void solve()
    {
        cin >> k >> n;

        int64_t sum = 0;
        for(int i = 0; i < n; i++)
        {
            char a; int x;
            char b; int y;
            cin >> a >> x >> b >> y;

            if(a == b) sum += Abs(x - y);
            else v.emplace_back(x, y);
        }

        suml = 0; sumr = 0;
        sort(v.begin(), v.end(), mod_cmp);
        n = (int) v.size();
        sum += n;
        if(n == 0)
        {
            cout << sum << "\n";
            return;
        }

        vector<int64_t> prefix(n, 0);
        for(int i = 0; i < n; i++)
        {
            iinsert(v[i].first);
            iinsert(v[i].second);

            prefix[i] = sumr - suml;
        }

        if(k == 1) cout << prefix[n - 1] + sum << "\n";
        else
        {
            while(!left.empty()) left.pop();
            while(!right.empty()) right.pop();

            suml = 0; sumr = 0;
            int64_t ans = INF;
            for(int i = n - 1; i >= 0; i--)
            {
                iinsert(v[i].first);
                iinsert(v[i].second);

                int64_t p = 0;
                if(i != 0) p = prefix[i - 1];
                ans = min(ans, sumr - suml + p);
            }

            cout << ans + sum << "\n";
        }
    }

    void iinsert(int64_t val)
    {
        int64_t median = INF;
        if((int) left.size() != 0) median = left.top();
        if(val <= median)
        {
            left.push(val);
            suml += val;
        }
        else
        {
            right.push(-val);
            sumr += val;
        }

        if((int) right.size() + 1 < (int) left.size())
        {
            int64_t nxt = left.top();
            left.pop();
            right.push(-nxt);
            suml -= nxt;
            sumr += nxt;
        }
        else if((int) left.size() < (int) right.size())
        {
            int64_t nxt = -right.top();
            right.pop();
            left.push(nxt);
            sumr -= nxt;
            suml += nxt;
        }
    }

    int modadd(int t1, int t2)
    {
        int res = t1 + t2;
        if(res >= MOD) res -= MOD;
        return res;
    }

    int modsub(int t1, int t2)
    {
        int res = t1 - t2;
        if(res < 0) res += MOD;
        return res;
    }

    int modmul(int t1, int t2)
    {
        int64_t res = 1LL * t1 * t2;
        return res % MOD;
    }

    int64_t Abs(int64_t t1)
    {
        if(t1 < 0) return -t1;
        return t1;
    }

    int64_t MASK(int i)
    {
        return (1LL << i);
    }

    bool BIT(int64_t t1, int j)
    {
        return (t1 & MASK(j));
    }
};

void __setup()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);

//    freopen("in.txt", "r", stdin);
//    freopen("out.txt", "w", stdout);
}

int main()
{
    __setup();
//        auto start = high_resolution_clock::now();
    int t = 1;
//    cin >> t;
    for(int i = 1; i <= t; i++)
    {
        Solution().solve();
    }

//    auto stop = high_resolution_clock::now();
//    auto duration = duration_cast<microseconds>(stop - start);
//    cerr << duration.count() << "\n";
    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 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 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 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 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 444 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 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
12 Correct 26 ms 4844 KB Output is correct
13 Correct 43 ms 4452 KB Output is correct
14 Correct 34 ms 4048 KB Output is correct
15 Correct 25 ms 2776 KB Output is correct
16 Correct 26 ms 4452 KB Output is correct
17 Correct 33 ms 4312 KB Output is correct
18 Correct 33 ms 4300 KB Output is correct
19 Correct 38 ms 4300 KB Output is correct
20 Correct 27 ms 4312 KB Output is correct
21 Correct 35 ms 4312 KB Output is correct

Subtask #3
9.0 / 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 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 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 0 ms 372 KB Output is correct
6 Correct 0 ms 460 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 496 KB Output is correct

Subtask #5
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 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 504 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 500 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 29 ms 5080 KB Output is correct
26 Correct 54 ms 5040 KB Output is correct
27 Correct 70 ms 6096 KB Output is correct
28 Correct 74 ms 6700 KB Output is correct
29 Correct 73 ms 6608 KB Output is correct
30 Correct 37 ms 3572 KB Output is correct
31 Correct 31 ms 6148 KB Output is correct
32 Correct 56 ms 6688 KB Output is correct
33 Correct 58 ms 6744 KB Output is correct
34 Correct 59 ms 6604 KB Output is correct
35 Correct 38 ms 6104 KB Output is correct
36 Correct 58 ms 6344 KB Output is correct
37 Correct 23 ms 5080 KB Output is correct