oj.uz

Submission #590715

# Submission time Handle Problem Language Result Execution time Memory
590715 2022-07-06T09:11:55 Z minhi1 Toll (BOI17_toll) C++14
100 / 100
 123 ms 83604 KB 
#include <bits/stdc++.h>
#define forn(i, a, b) for (int i = (a); i <= (int)(b); ++i)
#define rep(i, a, b) for (int i = (a); i < (int)(b); ++i)
#define ll long long
#define pb push_back
using namespace std;
template<class X, class Y> bool ckmin(X &x, Y y) {
    if (x > y) {
        x = y; return true;
    }
    return false;
}
template<class X, class Y> bool ckmax(X &x, Y y) {
    if (x < y) {
        x = y; return true;
    }
    return false;
}
const int N = 5e4 + 25;
const ll linf = 1e16;
const int inf = (int)1e9 + 25;
/////////////////////////////////////////////////
const int LOG = 16;
int k, n, m, o, dp[50000][LOG + 1][5][5], ans[5][5], tmp[5][5];
void sol() {
  cin >> k >> n >> m >> o;
  memset(dp, 0x3f, sizeof dp);
  forn(i, 1, m) {
    int u, v, w;
    cin >> u >> v >> w;
    dp[u / k][0][u % k][v % k] = w;
  }
  forn(j, 1, LOG) for(int i=0; i+(1<<j)<(n+k-1)/k; ++i) {
    rep(a, 0, k) rep(b, 0, k) rep(c, 0, k) {
      ckmin(dp[i][j][a][b], dp[i][j - 1][a][c] + dp[i + (1 << (j - 1))][j - 1][c][b]);
    }
  }
  while (o--) {
    int u, v;
    cin >> u >> v;
    int cur = u / k, dest = v / k;
    memset(ans, 0x3f, sizeof ans);
    rep(i, 0, k) ans[i][i] = 0;
    for(int i=LOG; i>=0; --i) if (cur + (1 << i) <= dest) {
      memset(tmp, 0x3f, sizeof tmp);
      rep(a, 0, k) rep(b, 0, k) rep(c, 0, k) {
        ckmin(tmp[a][b], ans[a][c] + dp[cur][i][c][b]);
      }
      memcpy(ans, tmp, sizeof ans);
      cur += (1 << i);
    }
    cout << (ans[u % k][v % k] == 0x3f3f3f3f ? -1 : ans[u % k][v % k]) << '\n';
  }
}
int main()
{
    ios::sync_with_stdio(0); cin.tie(0);
    #ifdef DHT
        freopen("hehe.inp", "r", stdin);
    #else
        //freopen("banhkhuc.inp", "r", stdin); freopen("banhkhuc.out", "w", stdout);
    #endif
    int t = 1;
//    cin >> t;
    forn(tt, 1, t) sol();
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 83532 KB Output is correct
2 Correct 39 ms 83472 KB Output is correct
3 Correct 33 ms 83380 KB Output is correct
4 Correct 31 ms 83452 KB Output is correct
5 Correct 32 ms 83388 KB Output is correct
6 Correct 32 ms 83404 KB Output is correct
7 Correct 37 ms 83484 KB Output is correct
8 Correct 67 ms 83604 KB Output is correct
9 Correct 62 ms 83472 KB Output is correct
10 Correct 47 ms 83400 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 83500 KB Output is correct
2 Correct 32 ms 83448 KB Output is correct
3 Correct 37 ms 83412 KB Output is correct
4 Correct 37 ms 83412 KB Output is correct
5 Correct 35 ms 83404 KB Output is correct
6 Correct 32 ms 83348 KB Output is correct
7 Correct 36 ms 83500 KB Output is correct
8 Correct 44 ms 83532 KB Output is correct
9 Correct 65 ms 83484 KB Output is correct
10 Correct 97 ms 83532 KB Output is correct
11 Correct 83 ms 83564 KB Output is correct
12 Correct 89 ms 83512 KB Output is correct
13 Correct 90 ms 83412 KB Output is correct
14 Correct 65 ms 83480 KB Output is correct
15 Correct 88 ms 83592 KB Output is correct
16 Correct 76 ms 83476 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 83396 KB Output is correct
2 Correct 35 ms 83432 KB Output is correct
3 Correct 32 ms 83400 KB Output is correct
4 Correct 34 ms 83424 KB Output is correct
5 Correct 32 ms 83360 KB Output is correct
6 Correct 33 ms 83400 KB Output is correct
7 Correct 32 ms 83420 KB Output is correct
8 Correct 33 ms 83396 KB Output is correct
9 Correct 32 ms 83468 KB Output is correct
10 Correct 59 ms 83488 KB Output is correct
11 Correct 86 ms 83472 KB Output is correct
12 Correct 88 ms 83380 KB Output is correct
13 Correct 92 ms 83472 KB Output is correct
14 Correct 113 ms 83352 KB Output is correct
15 Correct 81 ms 83412 KB Output is correct
16 Correct 74 ms 83384 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 83396 KB Output is correct
2 Correct 35 ms 83432 KB Output is correct
3 Correct 32 ms 83400 KB Output is correct
4 Correct 34 ms 83424 KB Output is correct
5 Correct 32 ms 83360 KB Output is correct
6 Correct 33 ms 83400 KB Output is correct
7 Correct 32 ms 83420 KB Output is correct
8 Correct 33 ms 83396 KB Output is correct
9 Correct 32 ms 83468 KB Output is correct
10 Correct 59 ms 83488 KB Output is correct
11 Correct 86 ms 83472 KB Output is correct
12 Correct 88 ms 83380 KB Output is correct
13 Correct 92 ms 83472 KB Output is correct
14 Correct 113 ms 83352 KB Output is correct
15 Correct 81 ms 83412 KB Output is correct
16 Correct 74 ms 83384 KB Output is correct
17 Correct 82 ms 83468 KB Output is correct
18 Correct 31 ms 83404 KB Output is correct
19 Correct 30 ms 83448 KB Output is correct
20 Correct 40 ms 83360 KB Output is correct
21 Correct 42 ms 83460 KB Output is correct
22 Correct 38 ms 83416 KB Output is correct
23 Correct 34 ms 83412 KB Output is correct
24 Correct 34 ms 83492 KB Output is correct
25 Correct 44 ms 83456 KB Output is correct
26 Correct 35 ms 83404 KB Output is correct
27 Correct 58 ms 83472 KB Output is correct
28 Correct 94 ms 83412 KB Output is correct
29 Correct 94 ms 83396 KB Output is correct
30 Correct 88 ms 83472 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 83532 KB Output is correct
2 Correct 39 ms 83472 KB Output is correct
3 Correct 33 ms 83380 KB Output is correct
4 Correct 31 ms 83452 KB Output is correct
5 Correct 32 ms 83388 KB Output is correct
6 Correct 32 ms 83404 KB Output is correct
7 Correct 37 ms 83484 KB Output is correct
8 Correct 67 ms 83604 KB Output is correct
9 Correct 62 ms 83472 KB Output is correct
10 Correct 47 ms 83400 KB Output is correct
11 Correct 86 ms 83500 KB Output is correct
12 Correct 32 ms 83448 KB Output is correct
13 Correct 37 ms 83412 KB Output is correct
14 Correct 37 ms 83412 KB Output is correct
15 Correct 35 ms 83404 KB Output is correct
16 Correct 32 ms 83348 KB Output is correct
17 Correct 36 ms 83500 KB Output is correct
18 Correct 44 ms 83532 KB Output is correct
19 Correct 65 ms 83484 KB Output is correct
20 Correct 97 ms 83532 KB Output is correct
21 Correct 83 ms 83564 KB Output is correct
22 Correct 89 ms 83512 KB Output is correct
23 Correct 90 ms 83412 KB Output is correct
24 Correct 65 ms 83480 KB Output is correct
25 Correct 88 ms 83592 KB Output is correct
26 Correct 76 ms 83476 KB Output is correct
27 Correct 37 ms 83396 KB Output is correct
28 Correct 35 ms 83432 KB Output is correct
29 Correct 32 ms 83400 KB Output is correct
30 Correct 34 ms 83424 KB Output is correct
31 Correct 32 ms 83360 KB Output is correct
32 Correct 33 ms 83400 KB Output is correct
33 Correct 32 ms 83420 KB Output is correct
34 Correct 33 ms 83396 KB Output is correct
35 Correct 32 ms 83468 KB Output is correct
36 Correct 59 ms 83488 KB Output is correct
37 Correct 86 ms 83472 KB Output is correct
38 Correct 88 ms 83380 KB Output is correct
39 Correct 92 ms 83472 KB Output is correct
40 Correct 113 ms 83352 KB Output is correct
41 Correct 81 ms 83412 KB Output is correct
42 Correct 74 ms 83384 KB Output is correct
43 Correct 82 ms 83468 KB Output is correct
44 Correct 31 ms 83404 KB Output is correct
45 Correct 30 ms 83448 KB Output is correct
46 Correct 40 ms 83360 KB Output is correct
47 Correct 42 ms 83460 KB Output is correct
48 Correct 38 ms 83416 KB Output is correct
49 Correct 34 ms 83412 KB Output is correct
50 Correct 34 ms 83492 KB Output is correct
51 Correct 44 ms 83456 KB Output is correct
52 Correct 35 ms 83404 KB Output is correct
53 Correct 58 ms 83472 KB Output is correct
54 Correct 94 ms 83412 KB Output is correct
55 Correct 94 ms 83396 KB Output is correct
56 Correct 88 ms 83472 KB Output is correct
57 Correct 123 ms 83492 KB Output is correct
58 Correct 65 ms 83476 KB Output is correct
59 Correct 91 ms 83472 KB Output is correct