Submission #676333

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
676333	2022-12-30 11:20:26	kirakaminski968	Toll (BOI17_toll)	C++17	100 / 100	138 ms	86752 KiB

toll

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#include <bits/stdc++.h>
using namespace std;
int k, n, m, o, dp[50000][17][5][5], ans[5][5], tmp[5][5];
void comb(int target[5][5], int a[5][5], int b[5][5]) {
  for (int x = 0; x < k; x++) {
    for (int y = 0; y < k; y++) {
      for (int z = 0; z < k; z++) {
        target[x][y] = min(target[x][y], a[x][z] + b[z][y]);
      }
    }
  }
}
int main() {
  ios_base::sync_with_stdio(0); cin.tie(0);
  cin >> k >> n >> m >> o;
  memset(dp, 0x3f, sizeof dp);
  while (m--) {
    int a, b, t; cin >> a >> b >> t;
    dp[a / k][0][a % k][b % k] = t;
  }
  for (int j = 1; j < 17; j++) {
    for (int i = 0; i + (1 << j) < (n + k - 1) / k; i++) {
      comb(dp[i][j], dp[i][j - 1], dp[i + (1 << j - 1)][j - 1]);
    }
  }
  while (o--) {
    int a, b; cin >> a >> b;
    memset(ans, 0x3f, sizeof ans);
    for (int i = 0; i < 5; i++) ans[i][i] = 0;
    for (int curr = a / k, dest = b / k, i = 16; ~i; i--) {
 
 
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Compilation message (stderr)

toll.cpp: In function 'int main()':
toll.cpp:23:48: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   23 |    comb(dp[i][j], dp[i][j - 1], dp[i + (1 << j - 1)][j - 1]);
      |                                              ~~^~~

• Subtask 1: 7 / 7
• Subtask 2: 10 / 10
• Subtask 3: 8 / 8
• Subtask 4: 31 / 31
• Subtask 5: 44 / 44