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Submission #568301

# Submission time Handle Problem Language Result Execution time Memory
568301 2022-05-25T07:39:32 Z inluminas Toll (BOI17_toll) C++17
100 / 100
 199 ms 169956 KB 
#include"bits/stdc++.h"
using namespace std;

#define ll long long
#define endl "\n"
#define fastio ios_base::sync_with_stdio(false)
#define inf LLONG_MAX
#define l first
#define r second

const int lmt=50001;
ll dp[lmt][17][5][5];

int main(){
	fastio;

	for(int i=0;i<lmt;i++){
		for(int j=0;j<17;j++){
			for(int k=0;k<5;k++){
				for(int l=0;l<5;l++) dp[i][j][k][l]=1e15;
			}
		}
	}

	int k,n,m,q;
	cin>>k>>n>>m>>q;
	for(int i=1;i<=m;i++){
		ll u,v,t;
		cin>>u>>v>>t;
		dp[u/k][0][u%k][v%k]=min(dp[u/k][0][u%k][v%k],t);
	}

	for(int mv=1;mv<17;mv++){
		for(int i=0;i<=(n-1)/k;i++){
			for(int j=0;j<k;j++){
				for(int l=0;l<k;l++){
					for(int o=0;o<k;o++){
						int b=i+(1<<(mv-1));
						if(b>(n-1)/k) continue;
						dp[i][mv][j][l]=min(dp[i][mv][j][l],dp[i][mv-1][j][o]+dp[b][mv-1][o][l]);
					}
				}
			}
		}
	}

	/*for(int i=0;i<=(n-1)/k;i++){
		for(int j=0;j<k;j++){
			for(int l=0;l<k;l++){
				for(int mv=0;mv<2;mv++){
					if(dp[i][mv][j][l]==1e15) continue;
					cout<<dp[i][mv][j][l]<<" "<<i<<" "<<mv<<" "<<j<<" "<<l<<endl;
				}
			}
		}
	}*/

	while(q--){
		int u,v;
		cin>>u>>v;
		int pre=u/k;

		ll val[k];
		for(int i=0;i<k;i++) val[i]=1e15;
		val[u%k]=0;
		int dis=v/k-u/k;

		for(int j=16;j>=0;j--){
			int b=pre+(1<<j);
			if(b>v/k || dis<(1<<j)) continue;
			dis-=(1<<j);

			ll val2[k];

			for(int i=0;i<k;i++) val2[i]=1e15;

			for(int i=0;i<k;i++){
				for(int l=0;l<k;l++){
					val2[i]=min(val2[i],val[l]+dp[pre][j][l][i]);
				}
			}
			for(int i=0;i<k;i++) val[i]=val2[i];
			pre=b;
		}

		ll ans=val[v%k];
		cout<<(ans==1e15?-1:ans)<<endl;
	}
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 166736 KB Output is correct
2 Correct 78 ms 166604 KB Output is correct
3 Correct 72 ms 166576 KB Output is correct
4 Correct 67 ms 166620 KB Output is correct
5 Correct 70 ms 166604 KB Output is correct
6 Correct 81 ms 166664 KB Output is correct
7 Correct 85 ms 166568 KB Output is correct
8 Correct 126 ms 167564 KB Output is correct
9 Correct 119 ms 167548 KB Output is correct
10 Correct 113 ms 166768 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 154 ms 166696 KB Output is correct
2 Correct 67 ms 166536 KB Output is correct
3 Correct 71 ms 166628 KB Output is correct
4 Correct 71 ms 166568 KB Output is correct
5 Correct 67 ms 166608 KB Output is correct
6 Correct 66 ms 166560 KB Output is correct
7 Correct 85 ms 166632 KB Output is correct
8 Correct 87 ms 166724 KB Output is correct
9 Correct 138 ms 167436 KB Output is correct
10 Correct 159 ms 168960 KB Output is correct
11 Correct 157 ms 168316 KB Output is correct
12 Correct 150 ms 167908 KB Output is correct
13 Correct 152 ms 168972 KB Output is correct
14 Correct 128 ms 168088 KB Output is correct
15 Correct 130 ms 167908 KB Output is correct
16 Correct 133 ms 167764 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 166596 KB Output is correct
2 Correct 66 ms 166516 KB Output is correct
3 Correct 71 ms 166568 KB Output is correct
4 Correct 80 ms 166588 KB Output is correct
5 Correct 82 ms 166608 KB Output is correct
6 Correct 72 ms 166660 KB Output is correct
7 Correct 68 ms 166672 KB Output is correct
8 Correct 69 ms 166664 KB Output is correct
9 Correct 69 ms 166652 KB Output is correct
10 Correct 107 ms 167496 KB Output is correct
11 Correct 162 ms 168180 KB Output is correct
12 Correct 140 ms 168820 KB Output is correct
13 Correct 149 ms 169052 KB Output is correct
14 Correct 164 ms 168424 KB Output is correct
15 Correct 112 ms 167756 KB Output is correct
16 Correct 115 ms 167788 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 166596 KB Output is correct
2 Correct 66 ms 166516 KB Output is correct
3 Correct 71 ms 166568 KB Output is correct
4 Correct 80 ms 166588 KB Output is correct
5 Correct 82 ms 166608 KB Output is correct
6 Correct 72 ms 166660 KB Output is correct
7 Correct 68 ms 166672 KB Output is correct
8 Correct 69 ms 166664 KB Output is correct
9 Correct 69 ms 166652 KB Output is correct
10 Correct 107 ms 167496 KB Output is correct
11 Correct 162 ms 168180 KB Output is correct
12 Correct 140 ms 168820 KB Output is correct
13 Correct 149 ms 169052 KB Output is correct
14 Correct 164 ms 168424 KB Output is correct
15 Correct 112 ms 167756 KB Output is correct
16 Correct 115 ms 167788 KB Output is correct
17 Correct 132 ms 168164 KB Output is correct
18 Correct 70 ms 166604 KB Output is correct
19 Correct 71 ms 166568 KB Output is correct
20 Correct 68 ms 166636 KB Output is correct
21 Correct 68 ms 166532 KB Output is correct
22 Correct 72 ms 166608 KB Output is correct
23 Correct 75 ms 166600 KB Output is correct
24 Correct 78 ms 166660 KB Output is correct
25 Correct 80 ms 166688 KB Output is correct
26 Correct 85 ms 166604 KB Output is correct
27 Correct 136 ms 167396 KB Output is correct
28 Correct 161 ms 168860 KB Output is correct
29 Correct 154 ms 169144 KB Output is correct
30 Correct 182 ms 168416 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 166736 KB Output is correct
2 Correct 78 ms 166604 KB Output is correct
3 Correct 72 ms 166576 KB Output is correct
4 Correct 67 ms 166620 KB Output is correct
5 Correct 70 ms 166604 KB Output is correct
6 Correct 81 ms 166664 KB Output is correct
7 Correct 85 ms 166568 KB Output is correct
8 Correct 126 ms 167564 KB Output is correct
9 Correct 119 ms 167548 KB Output is correct
10 Correct 113 ms 166768 KB Output is correct
11 Correct 154 ms 166696 KB Output is correct
12 Correct 67 ms 166536 KB Output is correct
13 Correct 71 ms 166628 KB Output is correct
14 Correct 71 ms 166568 KB Output is correct
15 Correct 67 ms 166608 KB Output is correct
16 Correct 66 ms 166560 KB Output is correct
17 Correct 85 ms 166632 KB Output is correct
18 Correct 87 ms 166724 KB Output is correct
19 Correct 138 ms 167436 KB Output is correct
20 Correct 159 ms 168960 KB Output is correct
21 Correct 157 ms 168316 KB Output is correct
22 Correct 150 ms 167908 KB Output is correct
23 Correct 152 ms 168972 KB Output is correct
24 Correct 128 ms 168088 KB Output is correct
25 Correct 130 ms 167908 KB Output is correct
26 Correct 133 ms 167764 KB Output is correct
27 Correct 70 ms 166596 KB Output is correct
28 Correct 66 ms 166516 KB Output is correct
29 Correct 71 ms 166568 KB Output is correct
30 Correct 80 ms 166588 KB Output is correct
31 Correct 82 ms 166608 KB Output is correct
32 Correct 72 ms 166660 KB Output is correct
33 Correct 68 ms 166672 KB Output is correct
34 Correct 69 ms 166664 KB Output is correct
35 Correct 69 ms 166652 KB Output is correct
36 Correct 107 ms 167496 KB Output is correct
37 Correct 162 ms 168180 KB Output is correct
38 Correct 140 ms 168820 KB Output is correct
39 Correct 149 ms 169052 KB Output is correct
40 Correct 164 ms 168424 KB Output is correct
41 Correct 112 ms 167756 KB Output is correct
42 Correct 115 ms 167788 KB Output is correct
43 Correct 132 ms 168164 KB Output is correct
44 Correct 70 ms 166604 KB Output is correct
45 Correct 71 ms 166568 KB Output is correct
46 Correct 68 ms 166636 KB Output is correct
47 Correct 68 ms 166532 KB Output is correct
48 Correct 72 ms 166608 KB Output is correct
49 Correct 75 ms 166600 KB Output is correct
50 Correct 78 ms 166660 KB Output is correct
51 Correct 80 ms 166688 KB Output is correct
52 Correct 85 ms 166604 KB Output is correct
53 Correct 136 ms 167396 KB Output is correct
54 Correct 161 ms 168860 KB Output is correct
55 Correct 154 ms 169144 KB Output is correct
56 Correct 182 ms 168416 KB Output is correct
57 Correct 199 ms 169956 KB Output is correct
58 Correct 139 ms 167480 KB Output is correct
59 Correct 196 ms 168432 KB Output is correct