oj.uz

Submission #671372

# Submission time Handle Problem Language Result Execution time Memory
671372 2022-12-13T01:56:29 Z chanhchuong123 Toll (BOI17_toll) C++14
100 / 100
 111 ms 81860 KB 
#include <bits/stdc++.h>
using namespace std;
#define task "C"
#define fi first
#define se second
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()

template <typename T1, typename T2> bool mini(T1 &a, T2 b) {
  	if (a > b) {a = b; return true;} return false;
}
template <typename T1, typename T2> bool maxi(T1 &a, T2 b) {
  	if (a < b) {a = b; return true;} return false;
}

int k, n, m, o;
int dp[50000][16][5][5], ans[5][5], tmp[5][5];

int main() {
  	ios_base::sync_with_stdio(0);
  	cin.tie(0); cout.tie(0);

  	if (fopen(task".inp","r")) {
    	freopen(task".inp","r",stdin);
    	freopen(task".out","w",stdout);
  	}

  	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 <= 15; j++) for (int i = 0; i + (1 << j) < (n + k - 1) / k; i++) {
  		for (int x = 0; x < k; x++) for (int y = 0; y < k; y++) for (int z = 0; z < k; z++) {
  			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;
  		int u = a / k, v = b / k;
  		memset(ans, 0x3f, sizeof(ans));
  		for (int i = 0; i < k; i++) ans[i][i] = 0;
  		for (int j = 15; j >= 0; j--) {
  			if (u + (1 << j) <= v) {
  				memset(tmp, 0x3f, sizeof(tmp));
  				for (int x = 0; x < k; x++) {
  					for (int y = 0; y < k; y++) {
  						for (int z = 0; z < k; z++) {
  							tmp[x][y] = min(tmp[x][y], ans[x][z] + dp[u][j][z][y]);
  						}
  					}
  				}
  				memcpy(ans, tmp, sizeof(ans));
  				u += 1 << j;
  			}
  		}
  		cout << (ans[a % k][b % k] == 0x3f3f3f3f ? -1 : ans[a % k][b % k]) << '\n';
  	}
}

Compilation message

toll.cpp: In function 'int main()':
toll.cpp:37:79: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   37 |      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]);
      |                                                                             ~~^~~
toll.cpp:24:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |      freopen(task".inp","r",stdin);
      |      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
toll.cpp:25:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |      freopen(task".out","w",stdout);
      |      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 79568 KB Output is correct
2 Correct 31 ms 78692 KB Output is correct
3 Correct 31 ms 78480 KB Output is correct
4 Correct 31 ms 78548 KB Output is correct
5 Correct 32 ms 78548 KB Output is correct
6 Correct 31 ms 78588 KB Output is correct
7 Correct 33 ms 78632 KB Output is correct
8 Correct 69 ms 79432 KB Output is correct
9 Correct 71 ms 79524 KB Output is correct
10 Correct 50 ms 78680 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 91 ms 80240 KB Output is correct
2 Correct 31 ms 78516 KB Output is correct
3 Correct 31 ms 78520 KB Output is correct
4 Correct 32 ms 78568 KB Output is correct
5 Correct 31 ms 78552 KB Output is correct
6 Correct 30 ms 78512 KB Output is correct
7 Correct 34 ms 78676 KB Output is correct
8 Correct 35 ms 78668 KB Output is correct
9 Correct 62 ms 79472 KB Output is correct
10 Correct 98 ms 80872 KB Output is correct
11 Correct 81 ms 80364 KB Output is correct
12 Correct 77 ms 79832 KB Output is correct
13 Correct 80 ms 80992 KB Output is correct
14 Correct 61 ms 80016 KB Output is correct
15 Correct 63 ms 79788 KB Output is correct
16 Correct 70 ms 79760 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 78568 KB Output is correct
2 Correct 31 ms 78516 KB Output is correct
3 Correct 32 ms 78568 KB Output is correct
4 Correct 31 ms 78540 KB Output is correct
5 Correct 33 ms 78564 KB Output is correct
6 Correct 32 ms 78568 KB Output is correct
7 Correct 33 ms 78604 KB Output is correct
8 Correct 32 ms 78636 KB Output is correct
9 Correct 32 ms 78536 KB Output is correct
10 Correct 59 ms 79300 KB Output is correct
11 Correct 74 ms 80140 KB Output is correct
12 Correct 86 ms 80872 KB Output is correct
13 Correct 91 ms 80980 KB Output is correct
14 Correct 78 ms 80332 KB Output is correct
15 Correct 65 ms 79772 KB Output is correct
16 Correct 59 ms 79724 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 78568 KB Output is correct
2 Correct 31 ms 78516 KB Output is correct
3 Correct 32 ms 78568 KB Output is correct
4 Correct 31 ms 78540 KB Output is correct
5 Correct 33 ms 78564 KB Output is correct
6 Correct 32 ms 78568 KB Output is correct
7 Correct 33 ms 78604 KB Output is correct
8 Correct 32 ms 78636 KB Output is correct
9 Correct 32 ms 78536 KB Output is correct
10 Correct 59 ms 79300 KB Output is correct
11 Correct 74 ms 80140 KB Output is correct
12 Correct 86 ms 80872 KB Output is correct
13 Correct 91 ms 80980 KB Output is correct
14 Correct 78 ms 80332 KB Output is correct
15 Correct 65 ms 79772 KB Output is correct
16 Correct 59 ms 79724 KB Output is correct
17 Correct 89 ms 80052 KB Output is correct
18 Correct 35 ms 78512 KB Output is correct
19 Correct 34 ms 78468 KB Output is correct
20 Correct 36 ms 78504 KB Output is correct
21 Correct 30 ms 78508 KB Output is correct
22 Correct 31 ms 78500 KB Output is correct
23 Correct 32 ms 78556 KB Output is correct
24 Correct 38 ms 78548 KB Output is correct
25 Correct 34 ms 78684 KB Output is correct
26 Correct 33 ms 78652 KB Output is correct
27 Correct 62 ms 79352 KB Output is correct
28 Correct 86 ms 80776 KB Output is correct
29 Correct 90 ms 81004 KB Output is correct
30 Correct 90 ms 80368 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 79568 KB Output is correct
2 Correct 31 ms 78692 KB Output is correct
3 Correct 31 ms 78480 KB Output is correct
4 Correct 31 ms 78548 KB Output is correct
5 Correct 32 ms 78548 KB Output is correct
6 Correct 31 ms 78588 KB Output is correct
7 Correct 33 ms 78632 KB Output is correct
8 Correct 69 ms 79432 KB Output is correct
9 Correct 71 ms 79524 KB Output is correct
10 Correct 50 ms 78680 KB Output is correct
11 Correct 91 ms 80240 KB Output is correct
12 Correct 31 ms 78516 KB Output is correct
13 Correct 31 ms 78520 KB Output is correct
14 Correct 32 ms 78568 KB Output is correct
15 Correct 31 ms 78552 KB Output is correct
16 Correct 30 ms 78512 KB Output is correct
17 Correct 34 ms 78676 KB Output is correct
18 Correct 35 ms 78668 KB Output is correct
19 Correct 62 ms 79472 KB Output is correct
20 Correct 98 ms 80872 KB Output is correct
21 Correct 81 ms 80364 KB Output is correct
22 Correct 77 ms 79832 KB Output is correct
23 Correct 80 ms 80992 KB Output is correct
24 Correct 61 ms 80016 KB Output is correct
25 Correct 63 ms 79788 KB Output is correct
26 Correct 70 ms 79760 KB Output is correct
27 Correct 31 ms 78568 KB Output is correct
28 Correct 31 ms 78516 KB Output is correct
29 Correct 32 ms 78568 KB Output is correct
30 Correct 31 ms 78540 KB Output is correct
31 Correct 33 ms 78564 KB Output is correct
32 Correct 32 ms 78568 KB Output is correct
33 Correct 33 ms 78604 KB Output is correct
34 Correct 32 ms 78636 KB Output is correct
35 Correct 32 ms 78536 KB Output is correct
36 Correct 59 ms 79300 KB Output is correct
37 Correct 74 ms 80140 KB Output is correct
38 Correct 86 ms 80872 KB Output is correct
39 Correct 91 ms 80980 KB Output is correct
40 Correct 78 ms 80332 KB Output is correct
41 Correct 65 ms 79772 KB Output is correct
42 Correct 59 ms 79724 KB Output is correct
43 Correct 89 ms 80052 KB Output is correct
44 Correct 35 ms 78512 KB Output is correct
45 Correct 34 ms 78468 KB Output is correct
46 Correct 36 ms 78504 KB Output is correct
47 Correct 30 ms 78508 KB Output is correct
48 Correct 31 ms 78500 KB Output is correct
49 Correct 32 ms 78556 KB Output is correct
50 Correct 38 ms 78548 KB Output is correct
51 Correct 34 ms 78684 KB Output is correct
52 Correct 33 ms 78652 KB Output is correct
53 Correct 62 ms 79352 KB Output is correct
54 Correct 86 ms 80776 KB Output is correct
55 Correct 90 ms 81004 KB Output is correct
56 Correct 90 ms 80368 KB Output is correct
57 Correct 111 ms 81860 KB Output is correct
58 Correct 65 ms 79508 KB Output is correct
59 Correct 82 ms 80328 KB Output is correct