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답안 #308068

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
308068 2020-09-30T02:37:15 Z Vince729 Toll (BOI17_toll) C++11
100 / 100
 171 ms 91768 KB 
#include<iostream>
#include<cstdio>
#include<string>
#include<vector>
#include<cstring>
#include<algorithm>
using namespace std;

const int MAXN = 50002;
const int MAXK = 5;
const int MOD = 1000000007;

int K, N, M, O;
int dp[MAXN][18][MAXK][MAXK];
int ans[MAXK][MAXK], tmp[MAXK][MAXK];

void minimize(int x[MAXK][MAXK], int a[MAXK][MAXK], int b[MAXK][MAXK]) {
    for (int i = 0; i < K; i++) {
        for (int j = 0; j < K; j++) {
            for (int k = 0; k < K; k++) {
                x[i][j] = min(x[i][j], a[i][k]+b[k][j]);
            }
        }
    }
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> K >> N >> M >> O;
    memset(dp, 0x3f, sizeof dp);
    for (int i = 0; i < M; i++) {
        int a, b, t;
        cin >> a >> b >> t;
        dp[a/K][0][a%K][b%K] = t;
    }
    for (int i = 1; i < 18; i++) {
        for (int j = 0; j < (N+K-1)/K-(1<<i); j++) {
            minimize(dp[j][i], dp[j][i-1], dp[j+(1<<(i-1))][i-1]);
        }
    }
    for (int o = 0; o < O; o++) {
        int a, b; cin >> a >> b;
        memset(ans, 0x3f, sizeof ans);
        for (int i = 0; i < K; i++) ans[i][i] = 0;
        int cur = a/K, dest = b/K;
        for (int i = 17; i >= 0; i--) {
            if (cur + (1<<i) <= dest) {
                memset(tmp, 0x3f, sizeof tmp);
                minimize(tmp, ans, dp[cur][i]);
                memcpy(ans, tmp, sizeof ans);
                cur += (1<<i);
            }
        }
        if (ans[a%K][b%K] == 0x3f3f3f3f) cout << -1;
        else cout << ans[a%K][b%K]; 
        cout << "\n";
    }
}

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 109 ms 89464 KB Output is correct
2 Correct 54 ms 88436 KB Output is correct
3 Correct 49 ms 88444 KB Output is correct
4 Correct 52 ms 88448 KB Output is correct
5 Correct 52 ms 88440 KB Output is correct
6 Correct 56 ms 88440 KB Output is correct
7 Correct 52 ms 88392 KB Output is correct
8 Correct 107 ms 89336 KB Output is correct
9 Correct 111 ms 89336 KB Output is correct
10 Correct 94 ms 88568 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 129 ms 90104 KB Output is correct
2 Correct 51 ms 88348 KB Output is correct
3 Correct 55 ms 88440 KB Output is correct
4 Correct 49 ms 88440 KB Output is correct
5 Correct 49 ms 88440 KB Output is correct
6 Correct 54 ms 88440 KB Output is correct
7 Correct 57 ms 88568 KB Output is correct
8 Correct 54 ms 88568 KB Output is correct
9 Correct 102 ms 89336 KB Output is correct
10 Correct 135 ms 90744 KB Output is correct
11 Correct 133 ms 90232 KB Output is correct
12 Correct 116 ms 89720 KB Output is correct
13 Correct 122 ms 90872 KB Output is correct
14 Correct 94 ms 89848 KB Output is correct
15 Correct 107 ms 89656 KB Output is correct
16 Correct 93 ms 89692 KB Output is correct

Subtask #3
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 50 ms 88440 KB Output is correct
2 Correct 52 ms 88440 KB Output is correct
3 Correct 50 ms 88440 KB Output is correct
4 Correct 48 ms 88440 KB Output is correct
5 Correct 49 ms 88440 KB Output is correct
6 Correct 51 ms 88440 KB Output is correct
7 Correct 53 ms 88440 KB Output is correct
8 Correct 50 ms 88440 KB Output is correct
9 Correct 51 ms 88440 KB Output is correct
10 Correct 94 ms 89208 KB Output is correct
11 Correct 122 ms 89976 KB Output is correct
12 Correct 133 ms 90608 KB Output is correct
13 Correct 139 ms 90784 KB Output is correct
14 Correct 121 ms 90232 KB Output is correct
15 Correct 88 ms 89592 KB Output is correct
16 Correct 92 ms 89592 KB Output is correct

Subtask #4
31.0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 50 ms 88440 KB Output is correct
2 Correct 52 ms 88440 KB Output is correct
3 Correct 50 ms 88440 KB Output is correct
4 Correct 48 ms 88440 KB Output is correct
5 Correct 49 ms 88440 KB Output is correct
6 Correct 51 ms 88440 KB Output is correct
7 Correct 53 ms 88440 KB Output is correct
8 Correct 50 ms 88440 KB Output is correct
9 Correct 51 ms 88440 KB Output is correct
10 Correct 94 ms 89208 KB Output is correct
11 Correct 122 ms 89976 KB Output is correct
12 Correct 133 ms 90608 KB Output is correct
13 Correct 139 ms 90784 KB Output is correct
14 Correct 121 ms 90232 KB Output is correct
15 Correct 88 ms 89592 KB Output is correct
16 Correct 92 ms 89592 KB Output is correct
17 Correct 127 ms 90000 KB Output is correct
18 Correct 51 ms 88440 KB Output is correct
19 Correct 50 ms 88440 KB Output is correct
20 Correct 53 ms 88440 KB Output is correct
21 Correct 49 ms 88448 KB Output is correct
22 Correct 62 ms 88440 KB Output is correct
23 Correct 52 ms 88440 KB Output is correct
24 Correct 51 ms 88440 KB Output is correct
25 Correct 66 ms 88440 KB Output is correct
26 Correct 54 ms 88440 KB Output is correct
27 Correct 103 ms 89208 KB Output is correct
28 Correct 137 ms 90620 KB Output is correct
29 Correct 160 ms 90872 KB Output is correct
30 Correct 128 ms 90232 KB Output is correct

Subtask #5
44.0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Correct 109 ms 89464 KB Output is correct
2 Correct 54 ms 88436 KB Output is correct
3 Correct 49 ms 88444 KB Output is correct
4 Correct 52 ms 88448 KB Output is correct
5 Correct 52 ms 88440 KB Output is correct
6 Correct 56 ms 88440 KB Output is correct
7 Correct 52 ms 88392 KB Output is correct
8 Correct 107 ms 89336 KB Output is correct
9 Correct 111 ms 89336 KB Output is correct
10 Correct 94 ms 88568 KB Output is correct
11 Correct 129 ms 90104 KB Output is correct
12 Correct 51 ms 88348 KB Output is correct
13 Correct 55 ms 88440 KB Output is correct
14 Correct 49 ms 88440 KB Output is correct
15 Correct 49 ms 88440 KB Output is correct
16 Correct 54 ms 88440 KB Output is correct
17 Correct 57 ms 88568 KB Output is correct
18 Correct 54 ms 88568 KB Output is correct
19 Correct 102 ms 89336 KB Output is correct
20 Correct 135 ms 90744 KB Output is correct
21 Correct 133 ms 90232 KB Output is correct
22 Correct 116 ms 89720 KB Output is correct
23 Correct 122 ms 90872 KB Output is correct
24 Correct 94 ms 89848 KB Output is correct
25 Correct 107 ms 89656 KB Output is correct
26 Correct 93 ms 89692 KB Output is correct
27 Correct 50 ms 88440 KB Output is correct
28 Correct 52 ms 88440 KB Output is correct
29 Correct 50 ms 88440 KB Output is correct
30 Correct 48 ms 88440 KB Output is correct
31 Correct 49 ms 88440 KB Output is correct
32 Correct 51 ms 88440 KB Output is correct
33 Correct 53 ms 88440 KB Output is correct
34 Correct 50 ms 88440 KB Output is correct
35 Correct 51 ms 88440 KB Output is correct
36 Correct 94 ms 89208 KB Output is correct
37 Correct 122 ms 89976 KB Output is correct
38 Correct 133 ms 90608 KB Output is correct
39 Correct 139 ms 90784 KB Output is correct
40 Correct 121 ms 90232 KB Output is correct
41 Correct 88 ms 89592 KB Output is correct
42 Correct 92 ms 89592 KB Output is correct
43 Correct 127 ms 90000 KB Output is correct
44 Correct 51 ms 88440 KB Output is correct
45 Correct 50 ms 88440 KB Output is correct
46 Correct 53 ms 88440 KB Output is correct
47 Correct 49 ms 88448 KB Output is correct
48 Correct 62 ms 88440 KB Output is correct
49 Correct 52 ms 88440 KB Output is correct
50 Correct 51 ms 88440 KB Output is correct
51 Correct 66 ms 88440 KB Output is correct
52 Correct 54 ms 88440 KB Output is correct
53 Correct 103 ms 89208 KB Output is correct
54 Correct 137 ms 90620 KB Output is correct
55 Correct 160 ms 90872 KB Output is correct
56 Correct 128 ms 90232 KB Output is correct
57 Correct 171 ms 91768 KB Output is correct
58 Correct 114 ms 89336 KB Output is correct
59 Correct 154 ms 90232 KB Output is correct