oj.uz

Submission #644638

# Submission time Handle Problem Language Result Execution time Memory
644638 2022-09-25T04:57:19 Z guagua0407 Toll (BOI17_toll) C++17
100 / 100
 235 ms 99280 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);
}

int k,n,m,o;
const int mxn=5e4+4;
int dp[mxn][20][5][5];
int ans[5][5];
int tmp[5][5];

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

int main() {_
	//setIO("wayne");
    cin>>k>>n>>m>>o;
	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<20;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]);
		}
	}
	for(int i=0;i<o;i++){
		int a,b;
		cin>>a>>b;
		int node=a/k;
		int length=(b/k)-(a/k);
		memset(ans,0x3f,sizeof ans);
		for(int i=0;i<5;i++){
			ans[i][i]=0;			
		}
		//cout<<length<<'\n';
		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:41:40: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   41 |    ckmin(dp[i][j],dp[i][j-1],dp[i+(1<<j-1)][j-1]);
      |                                       ~^~
toll.cpp:47:7: warning: unused variable 'node' [-Wunused-variable]
   47 |   int node=a/k;
      |       ^~~~
toll.cpp:48:7: warning: unused variable 'length' [-Wunused-variable]
   48 |   int length=(b/k)-(a/k);
      |       ^~~~~~
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 225 ms 98252 KB Output is correct
2 Correct 36 ms 98048 KB Output is correct
3 Correct 36 ms 98100 KB Output is correct
4 Correct 37 ms 98260 KB Output is correct
5 Correct 44 ms 98084 KB Output is correct
6 Correct 38 ms 98168 KB Output is correct
7 Correct 39 ms 98068 KB Output is correct
8 Correct 228 ms 99060 KB Output is correct
9 Correct 235 ms 99036 KB Output is correct
10 Correct 209 ms 98220 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 144 ms 98152 KB Output is correct
2 Correct 37 ms 98068 KB Output is correct
3 Correct 37 ms 98056 KB Output is correct
4 Correct 39 ms 98124 KB Output is correct
5 Correct 38 ms 98132 KB Output is correct
6 Correct 38 ms 98124 KB Output is correct
7 Correct 47 ms 98224 KB Output is correct
8 Correct 47 ms 98396 KB Output is correct
9 Correct 222 ms 99032 KB Output is correct
10 Correct 136 ms 99244 KB Output is correct
11 Correct 149 ms 99016 KB Output is correct
12 Correct 113 ms 99048 KB Output is correct
13 Correct 86 ms 99048 KB Output is correct
14 Correct 84 ms 99072 KB Output is correct
15 Correct 73 ms 98992 KB Output is correct
16 Correct 69 ms 99048 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 98128 KB Output is correct
2 Correct 38 ms 98040 KB Output is correct
3 Correct 38 ms 98096 KB Output is correct
4 Correct 37 ms 98040 KB Output is correct
5 Correct 38 ms 98156 KB Output is correct
6 Correct 39 ms 98176 KB Output is correct
7 Correct 41 ms 98176 KB Output is correct
8 Correct 39 ms 98140 KB Output is correct
9 Correct 38 ms 98176 KB Output is correct
10 Correct 211 ms 98960 KB Output is correct
11 Correct 133 ms 98976 KB Output is correct
12 Correct 122 ms 99052 KB Output is correct
13 Correct 115 ms 98968 KB Output is correct
14 Correct 107 ms 98936 KB Output is correct
15 Correct 65 ms 99016 KB Output is correct
16 Correct 65 ms 99048 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 98128 KB Output is correct
2 Correct 38 ms 98040 KB Output is correct
3 Correct 38 ms 98096 KB Output is correct
4 Correct 37 ms 98040 KB Output is correct
5 Correct 38 ms 98156 KB Output is correct
6 Correct 39 ms 98176 KB Output is correct
7 Correct 41 ms 98176 KB Output is correct
8 Correct 39 ms 98140 KB Output is correct
9 Correct 38 ms 98176 KB Output is correct
10 Correct 211 ms 98960 KB Output is correct
11 Correct 133 ms 98976 KB Output is correct
12 Correct 122 ms 99052 KB Output is correct
13 Correct 115 ms 98968 KB Output is correct
14 Correct 107 ms 98936 KB Output is correct
15 Correct 65 ms 99016 KB Output is correct
16 Correct 65 ms 99048 KB Output is correct
17 Correct 147 ms 99052 KB Output is correct
18 Correct 37 ms 98112 KB Output is correct
19 Correct 40 ms 98040 KB Output is correct
20 Correct 37 ms 98116 KB Output is correct
21 Correct 37 ms 98060 KB Output is correct
22 Correct 37 ms 98136 KB Output is correct
23 Correct 42 ms 98100 KB Output is correct
24 Correct 42 ms 98228 KB Output is correct
25 Correct 42 ms 98252 KB Output is correct
26 Correct 47 ms 98256 KB Output is correct
27 Correct 215 ms 98992 KB Output is correct
28 Correct 123 ms 98996 KB Output is correct
29 Correct 122 ms 99040 KB Output is correct
30 Correct 118 ms 99044 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 225 ms 98252 KB Output is correct
2 Correct 36 ms 98048 KB Output is correct
3 Correct 36 ms 98100 KB Output is correct
4 Correct 37 ms 98260 KB Output is correct
5 Correct 44 ms 98084 KB Output is correct
6 Correct 38 ms 98168 KB Output is correct
7 Correct 39 ms 98068 KB Output is correct
8 Correct 228 ms 99060 KB Output is correct
9 Correct 235 ms 99036 KB Output is correct
10 Correct 209 ms 98220 KB Output is correct
11 Correct 144 ms 98152 KB Output is correct
12 Correct 37 ms 98068 KB Output is correct
13 Correct 37 ms 98056 KB Output is correct
14 Correct 39 ms 98124 KB Output is correct
15 Correct 38 ms 98132 KB Output is correct
16 Correct 38 ms 98124 KB Output is correct
17 Correct 47 ms 98224 KB Output is correct
18 Correct 47 ms 98396 KB Output is correct
19 Correct 222 ms 99032 KB Output is correct
20 Correct 136 ms 99244 KB Output is correct
21 Correct 149 ms 99016 KB Output is correct
22 Correct 113 ms 99048 KB Output is correct
23 Correct 86 ms 99048 KB Output is correct
24 Correct 84 ms 99072 KB Output is correct
25 Correct 73 ms 98992 KB Output is correct
26 Correct 69 ms 99048 KB Output is correct
27 Correct 38 ms 98128 KB Output is correct
28 Correct 38 ms 98040 KB Output is correct
29 Correct 38 ms 98096 KB Output is correct
30 Correct 37 ms 98040 KB Output is correct
31 Correct 38 ms 98156 KB Output is correct
32 Correct 39 ms 98176 KB Output is correct
33 Correct 41 ms 98176 KB Output is correct
34 Correct 39 ms 98140 KB Output is correct
35 Correct 38 ms 98176 KB Output is correct
36 Correct 211 ms 98960 KB Output is correct
37 Correct 133 ms 98976 KB Output is correct
38 Correct 122 ms 99052 KB Output is correct
39 Correct 115 ms 98968 KB Output is correct
40 Correct 107 ms 98936 KB Output is correct
41 Correct 65 ms 99016 KB Output is correct
42 Correct 65 ms 99048 KB Output is correct
43 Correct 147 ms 99052 KB Output is correct
44 Correct 37 ms 98112 KB Output is correct
45 Correct 40 ms 98040 KB Output is correct
46 Correct 37 ms 98116 KB Output is correct
47 Correct 37 ms 98060 KB Output is correct
48 Correct 37 ms 98136 KB Output is correct
49 Correct 42 ms 98100 KB Output is correct
50 Correct 42 ms 98228 KB Output is correct
51 Correct 42 ms 98252 KB Output is correct
52 Correct 47 ms 98256 KB Output is correct
53 Correct 215 ms 98992 KB Output is correct
54 Correct 123 ms 98996 KB Output is correct
55 Correct 122 ms 99040 KB Output is correct
56 Correct 118 ms 99044 KB Output is correct
57 Correct 134 ms 99176 KB Output is correct
58 Correct 229 ms 99052 KB Output is correct
59 Correct 157 ms 99280 KB Output is correct