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답안 #540811

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
540811 2022-03-21T19:45:58 Z Olympia Toll (BOI17_toll) C++17
100 / 100
 201 ms 314320 KB 
#include <cmath>
#include <iostream>
#include <set>
#include <climits>
#include <cstdio>
#include <algorithm>
#include <cassert>
#include <string>
#include <vector>
#include <iomanip>
#include <unordered_map>
#include <type_traits>
#include <string>
#include <queue>
#define ll long long
#include <map>

using namespace std;
int64_t dp[50050][32][5][5];
int K, N, M, O;
vector<vector<int64_t>> f (int in1, int in2) {
    vector<vector<int64_t>> cur(K);
    for (int i = 0; i < K; i++) {
        cur[i].assign(K, INT_MAX);
        cur[i][i] = 0;
    }
    int dif = abs(in1 - in2);
    while (dif > 0) {
        vector<vector<int64_t>> new_cur = cur;
        for (int i = 0; i < K; i++) {
            new_cur[i].assign(K, INT_MAX);
        }
        int lg2 = log2(dif);
        for (int i = 0; i < K; i++) {
            for (int j = 0; j < K; j++) {
                for (int k = 0; k < K; k++) {
                     new_cur[i][j] = min(new_cur[i][j], cur[i][k] + dp[in1][lg2][k][j]);
                }
            }
        }
        dif -= (1 << lg2);
        in1 += (1 << lg2);
        cur = new_cur;
    }
    return cur;
}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> K >> N >> M >> O;
    N++;
    while (N % K != K - 1) {
        N++;
    }
    for (int j = 0; j < 32; j++) {
        for (int i = 0; i < N/K; i++) {
            for (int x = 0; x < K; x++) {
                for (int y = 0; y < K; y++) {
                    dp[i][j][x][y] = INT_MAX;
                }
            }
        }
    }
    while (M--) {
        int64_t a, b, w;
        cin >> a >> b >> w;
        dp[a/K][0][a % K][b % K] = min(w, dp[a/K][0][a % K][b % K]);
    }
    for (int j = 1; j < 32; j++) {
        for (int i = 0; i < N/K; i++) {
            for (int x = 0; x < K; x++) {
                for (int y = 0; y < K; y++) {
                    for (int z = 0; z < K; z++) {
                        if (i + (1 << (j - 1)) < N/K)
                        dp[i][j][x][y] = min(dp[i][j][x][y], dp[i][j - 1][x][z] + dp[i + (1 << (j - 1))][j - 1][z][y]);
                    }
                }
            }
        }
    }
    while (O--) {
        int a, b;
        cin >> a >> b;
        if (a/K == b/K) {
            cout << "-1\n";
            continue;
        }
        vector<vector<int64_t>> vec = f(a/K, b/K);
        if (vec[a % K][b % K] == INT_MAX) {
            cout << "-1\n";
            continue;
        }
        cout << vec[a % K][b % K] << '\n';
    }
}

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 201 ms 313420 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 4 ms 6612 KB Output is correct
6 Correct 4 ms 6612 KB Output is correct
7 Correct 4 ms 6612 KB Output is correct
8 Correct 179 ms 314256 KB Output is correct
9 Correct 177 ms 314308 KB Output is correct
10 Correct 179 ms 313468 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 151 ms 156868 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 324 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 10 ms 6616 KB Output is correct
8 Correct 11 ms 3540 KB Output is correct
9 Correct 170 ms 314320 KB Output is correct
10 Correct 165 ms 106956 KB Output is correct
11 Correct 154 ms 158636 KB Output is correct
12 Correct 146 ms 105988 KB Output is correct
13 Correct 126 ms 40288 KB Output is correct
14 Correct 87 ms 64396 KB Output is correct
15 Correct 103 ms 39164 KB Output is correct
16 Correct 101 ms 39116 KB Output is correct

Subtask #3
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 4 ms 6612 KB Output is correct
7 Correct 2 ms 3412 KB Output is correct
8 Correct 3 ms 1636 KB Output is correct
9 Correct 2 ms 1876 KB Output is correct
10 Correct 164 ms 314180 KB Output is correct
11 Correct 135 ms 158284 KB Output is correct
12 Correct 143 ms 106824 KB Output is correct
13 Correct 145 ms 107084 KB Output is correct
14 Correct 140 ms 106580 KB Output is correct
15 Correct 95 ms 39020 KB Output is correct
16 Correct 84 ms 38988 KB Output is correct

Subtask #4
31.0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 4 ms 6612 KB Output is correct
7 Correct 2 ms 3412 KB Output is correct
8 Correct 3 ms 1636 KB Output is correct
9 Correct 2 ms 1876 KB Output is correct
10 Correct 164 ms 314180 KB Output is correct
11 Correct 135 ms 158284 KB Output is correct
12 Correct 143 ms 106824 KB Output is correct
13 Correct 145 ms 107084 KB Output is correct
14 Correct 140 ms 106580 KB Output is correct
15 Correct 95 ms 39020 KB Output is correct
16 Correct 84 ms 38988 KB Output is correct
17 Correct 143 ms 158448 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 328 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 6 ms 6612 KB Output is correct
24 Correct 8 ms 3540 KB Output is correct
25 Correct 8 ms 1620 KB Output is correct
26 Correct 7 ms 1876 KB Output is correct
27 Correct 165 ms 314264 KB Output is correct
28 Correct 148 ms 106924 KB Output is correct
29 Correct 148 ms 107124 KB Output is correct
30 Correct 142 ms 106444 KB Output is correct

Subtask #5
44.0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Correct 201 ms 313420 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 4 ms 6612 KB Output is correct
6 Correct 4 ms 6612 KB Output is correct
7 Correct 4 ms 6612 KB Output is correct
8 Correct 179 ms 314256 KB Output is correct
9 Correct 177 ms 314308 KB Output is correct
10 Correct 179 ms 313468 KB Output is correct
11 Correct 151 ms 156868 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 324 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 10 ms 6616 KB Output is correct
18 Correct 11 ms 3540 KB Output is correct
19 Correct 170 ms 314320 KB Output is correct
20 Correct 165 ms 106956 KB Output is correct
21 Correct 154 ms 158636 KB Output is correct
22 Correct 146 ms 105988 KB Output is correct
23 Correct 126 ms 40288 KB Output is correct
24 Correct 87 ms 64396 KB Output is correct
25 Correct 103 ms 39164 KB Output is correct
26 Correct 101 ms 39116 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 4 ms 6612 KB Output is correct
33 Correct 2 ms 3412 KB Output is correct
34 Correct 3 ms 1636 KB Output is correct
35 Correct 2 ms 1876 KB Output is correct
36 Correct 164 ms 314180 KB Output is correct
37 Correct 135 ms 158284 KB Output is correct
38 Correct 143 ms 106824 KB Output is correct
39 Correct 145 ms 107084 KB Output is correct
40 Correct 140 ms 106580 KB Output is correct
41 Correct 95 ms 39020 KB Output is correct
42 Correct 84 ms 38988 KB Output is correct
43 Correct 143 ms 158448 KB Output is correct
44 Correct 0 ms 340 KB Output is correct
45 Correct 1 ms 328 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 6 ms 6612 KB Output is correct
50 Correct 8 ms 3540 KB Output is correct
51 Correct 8 ms 1620 KB Output is correct
52 Correct 7 ms 1876 KB Output is correct
53 Correct 165 ms 314264 KB Output is correct
54 Correct 148 ms 106924 KB Output is correct
55 Correct 148 ms 107124 KB Output is correct
56 Correct 142 ms 106444 KB Output is correct
57 Correct 180 ms 81936 KB Output is correct
58 Correct 193 ms 314308 KB Output is correct
59 Correct 156 ms 158608 KB Output is correct