oj.uz

Submission #644626

# Submission time Handle Problem Language Result Execution time Memory
644626 2022-09-25T04:37:05 Z guagua0407 Toll (BOI17_toll) C++17
100 / 100
 127 ms 101520 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define _ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

void setIO(string s) {
	freopen((s + ".in").c_str(), "r", stdin);
	freopen((s + ".out").c_str(), "w", stdout);
}

const int mxn=5e4+5;
int dp[mxn][20][5][5];
int jump[mxn][20][5][5];
int ans[5][5];
int tmp[5][5];
int k,n,m,q;

void ckmin(int a[5][5],int b[5][5],int c[5][5]){
	for(int i=0;i<k;i++){
		for(int j=0;j<k;j++){
			for(int z=0;z<k;z++){
				a[i][z]=min(a[i][z],b[i][j]+c[j][z]);
			}
		}
	}
}

int main() {_
	//setIO("wayne");
	cin>>k>>n>>m>>q;
	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 j = 1; j < 17; j++) {
		for (int i = 0; i + (1 << j) < (n + k - 1) / k; i++) {
			ckmin(dp[i][j], dp[i][j - 1], dp[i + (1 << j - 1)][j - 1]);
		}
	}

	while (q--) {
		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--) {
			if (curr + (1 << i) <= dest) {
				memset(tmp, 0x3f, sizeof tmp);
				ckmin(tmp, ans, dp[curr][i]);
				memcpy(ans, tmp, sizeof ans);
				curr += (1 << i);
			}
		}
		cout << (ans[a % k][b % k] == 0x3f3f3f3f ? -1 : ans[a % k][b % k]) << '\n';
	}
	return 0;
}
//maybe its multiset not set

Compilation message

toll.cpp: In function 'int main()':
toll.cpp:42:49: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   42 |    ckmin(dp[i][j], dp[i][j - 1], dp[i + (1 << j - 1)][j - 1]);
      |                                               ~~^~~
toll.cpp: In function 'void setIO(std::string)':
toll.cpp:10:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |  freopen((s + ".in").c_str(), "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
toll.cpp:11:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |  freopen((s + ".out").c_str(), "w", stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 99060 KB Output is correct
2 Correct 35 ms 98132 KB Output is correct
3 Correct 36 ms 98076 KB Output is correct
4 Correct 39 ms 98132 KB Output is correct
5 Correct 38 ms 98144 KB Output is correct
6 Correct 36 ms 98124 KB Output is correct
7 Correct 37 ms 98124 KB Output is correct
8 Correct 71 ms 99064 KB Output is correct
9 Correct 71 ms 99012 KB Output is correct
10 Correct 56 ms 98312 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 99948 KB Output is correct
2 Correct 35 ms 98124 KB Output is correct
3 Correct 36 ms 98100 KB Output is correct
4 Correct 36 ms 98128 KB Output is correct
5 Correct 35 ms 98124 KB Output is correct
6 Correct 36 ms 98176 KB Output is correct
7 Correct 40 ms 98276 KB Output is correct
8 Correct 39 ms 98256 KB Output is correct
9 Correct 74 ms 99020 KB Output is correct
10 Correct 97 ms 100500 KB Output is correct
11 Correct 84 ms 99944 KB Output is correct
12 Correct 83 ms 99384 KB Output is correct
13 Correct 84 ms 100572 KB Output is correct
14 Correct 79 ms 99624 KB Output is correct
15 Correct 68 ms 99304 KB Output is correct
16 Correct 69 ms 99400 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 98160 KB Output is correct
2 Correct 36 ms 98136 KB Output is correct
3 Correct 35 ms 98040 KB Output is correct
4 Correct 43 ms 98164 KB Output is correct
5 Correct 39 ms 98068 KB Output is correct
6 Correct 36 ms 98184 KB Output is correct
7 Correct 37 ms 98116 KB Output is correct
8 Correct 39 ms 98120 KB Output is correct
9 Correct 37 ms 98124 KB Output is correct
10 Correct 65 ms 98892 KB Output is correct
11 Correct 80 ms 99688 KB Output is correct
12 Correct 101 ms 100420 KB Output is correct
13 Correct 94 ms 100452 KB Output is correct
14 Correct 87 ms 99944 KB Output is correct
15 Correct 63 ms 99276 KB Output is correct
16 Correct 64 ms 99264 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 98160 KB Output is correct
2 Correct 36 ms 98136 KB Output is correct
3 Correct 35 ms 98040 KB Output is correct
4 Correct 43 ms 98164 KB Output is correct
5 Correct 39 ms 98068 KB Output is correct
6 Correct 36 ms 98184 KB Output is correct
7 Correct 37 ms 98116 KB Output is correct
8 Correct 39 ms 98120 KB Output is correct
9 Correct 37 ms 98124 KB Output is correct
10 Correct 65 ms 98892 KB Output is correct
11 Correct 80 ms 99688 KB Output is correct
12 Correct 101 ms 100420 KB Output is correct
13 Correct 94 ms 100452 KB Output is correct
14 Correct 87 ms 99944 KB Output is correct
15 Correct 63 ms 99276 KB Output is correct
16 Correct 64 ms 99264 KB Output is correct
17 Correct 91 ms 99828 KB Output is correct
18 Correct 36 ms 98096 KB Output is correct
19 Correct 37 ms 98136 KB Output is correct
20 Correct 37 ms 98072 KB Output is correct
21 Correct 37 ms 98116 KB Output is correct
22 Correct 37 ms 98164 KB Output is correct
23 Correct 38 ms 98120 KB Output is correct
24 Correct 38 ms 98144 KB Output is correct
25 Correct 39 ms 98168 KB Output is correct
26 Correct 39 ms 98212 KB Output is correct
27 Correct 73 ms 99016 KB Output is correct
28 Correct 94 ms 100324 KB Output is correct
29 Correct 97 ms 100636 KB Output is correct
30 Correct 90 ms 100044 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 99060 KB Output is correct
2 Correct 35 ms 98132 KB Output is correct
3 Correct 36 ms 98076 KB Output is correct
4 Correct 39 ms 98132 KB Output is correct
5 Correct 38 ms 98144 KB Output is correct
6 Correct 36 ms 98124 KB Output is correct
7 Correct 37 ms 98124 KB Output is correct
8 Correct 71 ms 99064 KB Output is correct
9 Correct 71 ms 99012 KB Output is correct
10 Correct 56 ms 98312 KB Output is correct
11 Correct 93 ms 99948 KB Output is correct
12 Correct 35 ms 98124 KB Output is correct
13 Correct 36 ms 98100 KB Output is correct
14 Correct 36 ms 98128 KB Output is correct
15 Correct 35 ms 98124 KB Output is correct
16 Correct 36 ms 98176 KB Output is correct
17 Correct 40 ms 98276 KB Output is correct
18 Correct 39 ms 98256 KB Output is correct
19 Correct 74 ms 99020 KB Output is correct
20 Correct 97 ms 100500 KB Output is correct
21 Correct 84 ms 99944 KB Output is correct
22 Correct 83 ms 99384 KB Output is correct
23 Correct 84 ms 100572 KB Output is correct
24 Correct 79 ms 99624 KB Output is correct
25 Correct 68 ms 99304 KB Output is correct
26 Correct 69 ms 99400 KB Output is correct
27 Correct 36 ms 98160 KB Output is correct
28 Correct 36 ms 98136 KB Output is correct
29 Correct 35 ms 98040 KB Output is correct
30 Correct 43 ms 98164 KB Output is correct
31 Correct 39 ms 98068 KB Output is correct
32 Correct 36 ms 98184 KB Output is correct
33 Correct 37 ms 98116 KB Output is correct
34 Correct 39 ms 98120 KB Output is correct
35 Correct 37 ms 98124 KB Output is correct
36 Correct 65 ms 98892 KB Output is correct
37 Correct 80 ms 99688 KB Output is correct
38 Correct 101 ms 100420 KB Output is correct
39 Correct 94 ms 100452 KB Output is correct
40 Correct 87 ms 99944 KB Output is correct
41 Correct 63 ms 99276 KB Output is correct
42 Correct 64 ms 99264 KB Output is correct
43 Correct 91 ms 99828 KB Output is correct
44 Correct 36 ms 98096 KB Output is correct
45 Correct 37 ms 98136 KB Output is correct
46 Correct 37 ms 98072 KB Output is correct
47 Correct 37 ms 98116 KB Output is correct
48 Correct 37 ms 98164 KB Output is correct
49 Correct 38 ms 98120 KB Output is correct
50 Correct 38 ms 98144 KB Output is correct
51 Correct 39 ms 98168 KB Output is correct
52 Correct 39 ms 98212 KB Output is correct
53 Correct 73 ms 99016 KB Output is correct
54 Correct 94 ms 100324 KB Output is correct
55 Correct 97 ms 100636 KB Output is correct
56 Correct 90 ms 100044 KB Output is correct
57 Correct 127 ms 101520 KB Output is correct
58 Correct 74 ms 99092 KB Output is correct
59 Correct 91 ms 99916 KB Output is correct