oj.uz

Submission #130424

# Submission time Handle Problem Language Result Execution time Memory
130424 2019-07-15T07:48:54 Z win11905 Toll (BOI17_toll) C++11
100 / 100
 426 ms 49952 KB 
#include <bits/stdc++.h>
using namespace std;

const int INF = 1e9;

int k, n, m, o;

int main() {
    scanf("%d %d %d %d", &k, &n, &m, &o);
    int h = n/k+1;
    vector<vector<vector<vector<int>>>> d(h, vector<vector<vector<int>>>(k, vector<vector<int>>(16, vector<int>(k, INF))));
    for(int i = 0, a, b, c; i < m; ++i) {
        scanf("%d %d %d", &a, &b, &c);
        d[a/k][a%k][0][b%k] = c; 
    }
    for(int z = 1; z < 16; ++z) for(int i = 0; i < h; ++i) for(int j = 0; j < k; ++j) for(int x = 0; x < k; ++x) for(int y = 0; y < k; ++y) 
       if(i + (1<<(z-1)) < h) d[i][j][z][x] = min(d[i][j][z][x], d[i][j][z-1][y] + d[i+(1<<(z-1))][y][z-1][x]);
    for(int i = 0, a, b; i < o; ++i) {
        scanf("%d %d", &a, &b);
        if(a/k >= b/k) {
            puts("-1");
            continue;
        }
        vector<int> ret = d[a/k][a%k][0];
        int p = b % k; 
        a = (a / k) + 1, b = b / k;
        for(int j = 15; ~j; --j) if(a + (1 << j) <= b) {
            vector<int> nret(k, INF);
            for(int x = 0; x < k; ++x) for(int y = 0; y < k; ++y) 
                nret[y] = min(nret[y], ret[x] + d[a][x][j][y]);
            a += (1 << j);
            ret = nret;
        }
        printf("%d\n", ret[p] == INF ? -1 : ret[p]);
    } 
}

Compilation message

toll.cpp: In function 'int main()':
toll.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d %d %d", &k, &n, &m, &o);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
toll.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d", &a, &b, &c);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
toll.cpp:19:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &a, &b);
         ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 211 ms 48864 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 5 ms 1272 KB Output is correct
6 Correct 5 ms 1272 KB Output is correct
7 Correct 5 ms 1272 KB Output is correct
8 Correct 206 ms 48760 KB Output is correct
9 Correct 203 ms 48632 KB Output is correct
10 Correct 159 ms 47864 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 318 ms 48888 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 252 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 11 ms 1400 KB Output is correct
8 Correct 12 ms 1400 KB Output is correct
9 Correct 181 ms 48632 KB Output is correct
10 Correct 318 ms 49016 KB Output is correct
11 Correct 275 ms 48900 KB Output is correct
12 Correct 277 ms 47992 KB Output is correct
13 Correct 275 ms 30328 KB Output is correct
14 Correct 178 ms 29560 KB Output is correct
15 Correct 235 ms 29432 KB Output is correct
16 Correct 231 ms 29176 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 4 ms 1272 KB Output is correct
7 Correct 5 ms 1272 KB Output is correct
8 Correct 8 ms 1272 KB Output is correct
9 Correct 7 ms 1272 KB Output is correct
10 Correct 203 ms 48608 KB Output is correct
11 Correct 260 ms 48760 KB Output is correct
12 Correct 309 ms 48888 KB Output is correct
13 Correct 336 ms 49104 KB Output is correct
14 Correct 286 ms 48504 KB Output is correct
15 Correct 218 ms 29308 KB Output is correct
16 Correct 220 ms 29180 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 4 ms 1272 KB Output is correct
7 Correct 5 ms 1272 KB Output is correct
8 Correct 8 ms 1272 KB Output is correct
9 Correct 7 ms 1272 KB Output is correct
10 Correct 203 ms 48608 KB Output is correct
11 Correct 260 ms 48760 KB Output is correct
12 Correct 309 ms 48888 KB Output is correct
13 Correct 336 ms 49104 KB Output is correct
14 Correct 286 ms 48504 KB Output is correct
15 Correct 218 ms 29308 KB Output is correct
16 Correct 220 ms 29180 KB Output is correct
17 Correct 267 ms 48736 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 7 ms 1272 KB Output is correct
24 Correct 7 ms 1272 KB Output is correct
25 Correct 10 ms 1272 KB Output is correct
26 Correct 9 ms 1400 KB Output is correct
27 Correct 172 ms 48504 KB Output is correct
28 Correct 321 ms 48988 KB Output is correct
29 Correct 338 ms 49244 KB Output is correct
30 Correct 302 ms 48476 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 211 ms 48864 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 5 ms 1272 KB Output is correct
6 Correct 5 ms 1272 KB Output is correct
7 Correct 5 ms 1272 KB Output is correct
8 Correct 206 ms 48760 KB Output is correct
9 Correct 203 ms 48632 KB Output is correct
10 Correct 159 ms 47864 KB Output is correct
11 Correct 318 ms 48888 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 252 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 11 ms 1400 KB Output is correct
18 Correct 12 ms 1400 KB Output is correct
19 Correct 181 ms 48632 KB Output is correct
20 Correct 318 ms 49016 KB Output is correct
21 Correct 275 ms 48900 KB Output is correct
22 Correct 277 ms 47992 KB Output is correct
23 Correct 275 ms 30328 KB Output is correct
24 Correct 178 ms 29560 KB Output is correct
25 Correct 235 ms 29432 KB Output is correct
26 Correct 231 ms 29176 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 2 ms 380 KB Output is correct
32 Correct 4 ms 1272 KB Output is correct
33 Correct 5 ms 1272 KB Output is correct
34 Correct 8 ms 1272 KB Output is correct
35 Correct 7 ms 1272 KB Output is correct
36 Correct 203 ms 48608 KB Output is correct
37 Correct 260 ms 48760 KB Output is correct
38 Correct 309 ms 48888 KB Output is correct
39 Correct 336 ms 49104 KB Output is correct
40 Correct 286 ms 48504 KB Output is correct
41 Correct 218 ms 29308 KB Output is correct
42 Correct 220 ms 29180 KB Output is correct
43 Correct 267 ms 48736 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 2 ms 376 KB Output is correct
47 Correct 2 ms 376 KB Output is correct
48 Correct 2 ms 376 KB Output is correct
49 Correct 7 ms 1272 KB Output is correct
50 Correct 7 ms 1272 KB Output is correct
51 Correct 10 ms 1272 KB Output is correct
52 Correct 9 ms 1400 KB Output is correct
53 Correct 172 ms 48504 KB Output is correct
54 Correct 321 ms 48988 KB Output is correct
55 Correct 338 ms 49244 KB Output is correct
56 Correct 302 ms 48476 KB Output is correct
57 Correct 426 ms 49952 KB Output is correct
58 Correct 206 ms 48632 KB Output is correct
59 Correct 296 ms 48888 KB Output is correct