oj.uz

Submission #1007446

# Submission time Handle Problem Language Result Execution time Memory
1007446 2024-06-25T01:32:28 Z Br3ad Toll (BOI17_toll) C++17
100 / 100
 99 ms 34900 KB 
#include <iostream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <functional>
#include <numeric>
#include <cstring>
#include <string>
#include <cmath>
#include <vector>
#include <queue>
#include <stack>
#include <set>
#include <map>

using namespace std;
#define ll long long
#define ull unsigned long long
#define f first
#define s second
#define PF push_front
#define PB push_back
#define MP make_pair
#define max(a, b) ((a > b)? a : b)
#define min(a, b) ((a < b)? a : b)
#define max3(a, b, c) max(max(a, b), c)
#define min3(a, b, c) min(min(a, b), c)

const int N = 5e4 + 5;
const int M = 1e9 + 7; 
const int inf = 0x3f3f3f3f;
const ll int INF = 1e18;

int main(){
    
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    
    // ifstream cin();
    // ofstream cout();

    int k, n, m, q;
    cin >> k >> n >> m >> q;
    
    ll par[N][5][16];
    for(int i = 0; i < n; i++){
        for(int j = 0; j < k; j++){
            for(int step = 0; step < 16; step++){
                par[i][j][step] = INF;
            }
        }
    }

    for(int i = 0; i < m; i++){
        int a, b, w;
        cin >> a >> b >> w;
        par[a][b%k][0] = w;
    }

    for(int i = 1; i < 16; i++){
        for(int j = 0; j < n; j++){
            for(int pos = 0; pos < k; pos++){
                for(int temp = 0; temp < k; temp++){
                    int jump = j + (1 << (i-1))*k - j%k + temp;
                    if(jump >= n) continue;
                    par[j][pos][i] = min(par[j][pos][i], par[j][temp][i-1] + par[jump][pos][i-1]);
                }
            }
        }
    }

    while(q--){
        int a, b;
        cin >> a >> b;

        int pa = a/k, pb = b/k;

        if(pb <= pa){
            cout << "-1" << endl;
            continue;
        }

        vector<ll> dp(k, INF);
        dp[a%k] = 0;
        for(int i = 15; i >= 0; i--){
            if(((pb - pa) >> i) & 1){
                vector<ll> cur(k, INF);
                for(int j = 0; j < k; j++){
                    for(int from = 0; from < k; from++){
                        cur[j] = min(cur[j], dp[from] + par[pa*k + from][j][i]);
                    }
                }
                dp = cur;
                pa += (1 << i);
            }
        }

        cout << ((dp[b%k] == INF)? -1 : dp[b%k]) << endl;
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 32660 KB Output is correct
2 Correct 15 ms 31580 KB Output is correct
3 Correct 14 ms 31580 KB Output is correct
4 Correct 14 ms 31528 KB Output is correct
5 Correct 15 ms 31692 KB Output is correct
6 Correct 17 ms 31580 KB Output is correct
7 Correct 16 ms 31576 KB Output is correct
8 Correct 42 ms 32696 KB Output is correct
9 Correct 44 ms 32508 KB Output is correct
10 Correct 33 ms 31852 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 33368 KB Output is correct
2 Correct 14 ms 31580 KB Output is correct
3 Correct 14 ms 31576 KB Output is correct
4 Correct 14 ms 31768 KB Output is correct
5 Correct 14 ms 31580 KB Output is correct
6 Correct 14 ms 31580 KB Output is correct
7 Correct 27 ms 31836 KB Output is correct
8 Correct 30 ms 31880 KB Output is correct
9 Correct 46 ms 32620 KB Output is correct
10 Correct 82 ms 33876 KB Output is correct
11 Correct 61 ms 33364 KB Output is correct
12 Correct 65 ms 32848 KB Output is correct
13 Correct 67 ms 34128 KB Output is correct
14 Correct 44 ms 33104 KB Output is correct
15 Correct 46 ms 32848 KB Output is correct
16 Correct 52 ms 32852 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 31580 KB Output is correct
2 Correct 14 ms 31580 KB Output is correct
3 Correct 14 ms 31532 KB Output is correct
4 Correct 14 ms 31620 KB Output is correct
5 Correct 15 ms 31580 KB Output is correct
6 Correct 19 ms 31580 KB Output is correct
7 Correct 15 ms 31576 KB Output is correct
8 Correct 16 ms 31580 KB Output is correct
9 Correct 15 ms 31580 KB Output is correct
10 Correct 29 ms 32392 KB Output is correct
11 Correct 50 ms 33020 KB Output is correct
12 Correct 61 ms 33872 KB Output is correct
13 Correct 75 ms 34128 KB Output is correct
14 Correct 55 ms 33304 KB Output is correct
15 Correct 46 ms 32848 KB Output is correct
16 Correct 45 ms 32772 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 31580 KB Output is correct
2 Correct 14 ms 31580 KB Output is correct
3 Correct 14 ms 31532 KB Output is correct
4 Correct 14 ms 31620 KB Output is correct
5 Correct 15 ms 31580 KB Output is correct
6 Correct 19 ms 31580 KB Output is correct
7 Correct 15 ms 31576 KB Output is correct
8 Correct 16 ms 31580 KB Output is correct
9 Correct 15 ms 31580 KB Output is correct
10 Correct 29 ms 32392 KB Output is correct
11 Correct 50 ms 33020 KB Output is correct
12 Correct 61 ms 33872 KB Output is correct
13 Correct 75 ms 34128 KB Output is correct
14 Correct 55 ms 33304 KB Output is correct
15 Correct 46 ms 32848 KB Output is correct
16 Correct 45 ms 32772 KB Output is correct
17 Correct 48 ms 33276 KB Output is correct
18 Correct 14 ms 31576 KB Output is correct
19 Correct 15 ms 31576 KB Output is correct
20 Correct 14 ms 31576 KB Output is correct
21 Correct 14 ms 31668 KB Output is correct
22 Correct 14 ms 31576 KB Output is correct
23 Correct 18 ms 31616 KB Output is correct
24 Correct 17 ms 31836 KB Output is correct
25 Correct 19 ms 31844 KB Output is correct
26 Correct 19 ms 31836 KB Output is correct
27 Correct 32 ms 32592 KB Output is correct
28 Correct 77 ms 33892 KB Output is correct
29 Correct 75 ms 34128 KB Output is correct
30 Correct 70 ms 33368 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 32660 KB Output is correct
2 Correct 15 ms 31580 KB Output is correct
3 Correct 14 ms 31580 KB Output is correct
4 Correct 14 ms 31528 KB Output is correct
5 Correct 15 ms 31692 KB Output is correct
6 Correct 17 ms 31580 KB Output is correct
7 Correct 16 ms 31576 KB Output is correct
8 Correct 42 ms 32696 KB Output is correct
9 Correct 44 ms 32508 KB Output is correct
10 Correct 33 ms 31852 KB Output is correct
11 Correct 59 ms 33368 KB Output is correct
12 Correct 14 ms 31580 KB Output is correct
13 Correct 14 ms 31576 KB Output is correct
14 Correct 14 ms 31768 KB Output is correct
15 Correct 14 ms 31580 KB Output is correct
16 Correct 14 ms 31580 KB Output is correct
17 Correct 27 ms 31836 KB Output is correct
18 Correct 30 ms 31880 KB Output is correct
19 Correct 46 ms 32620 KB Output is correct
20 Correct 82 ms 33876 KB Output is correct
21 Correct 61 ms 33364 KB Output is correct
22 Correct 65 ms 32848 KB Output is correct
23 Correct 67 ms 34128 KB Output is correct
24 Correct 44 ms 33104 KB Output is correct
25 Correct 46 ms 32848 KB Output is correct
26 Correct 52 ms 32852 KB Output is correct
27 Correct 14 ms 31580 KB Output is correct
28 Correct 14 ms 31580 KB Output is correct
29 Correct 14 ms 31532 KB Output is correct
30 Correct 14 ms 31620 KB Output is correct
31 Correct 15 ms 31580 KB Output is correct
32 Correct 19 ms 31580 KB Output is correct
33 Correct 15 ms 31576 KB Output is correct
34 Correct 16 ms 31580 KB Output is correct
35 Correct 15 ms 31580 KB Output is correct
36 Correct 29 ms 32392 KB Output is correct
37 Correct 50 ms 33020 KB Output is correct
38 Correct 61 ms 33872 KB Output is correct
39 Correct 75 ms 34128 KB Output is correct
40 Correct 55 ms 33304 KB Output is correct
41 Correct 46 ms 32848 KB Output is correct
42 Correct 45 ms 32772 KB Output is correct
43 Correct 48 ms 33276 KB Output is correct
44 Correct 14 ms 31576 KB Output is correct
45 Correct 15 ms 31576 KB Output is correct
46 Correct 14 ms 31576 KB Output is correct
47 Correct 14 ms 31668 KB Output is correct
48 Correct 14 ms 31576 KB Output is correct
49 Correct 18 ms 31616 KB Output is correct
50 Correct 17 ms 31836 KB Output is correct
51 Correct 19 ms 31844 KB Output is correct
52 Correct 19 ms 31836 KB Output is correct
53 Correct 32 ms 32592 KB Output is correct
54 Correct 77 ms 33892 KB Output is correct
55 Correct 75 ms 34128 KB Output is correct
56 Correct 70 ms 33368 KB Output is correct
57 Correct 99 ms 34900 KB Output is correct
58 Correct 41 ms 32600 KB Output is correct
59 Correct 59 ms 33372 KB Output is correct