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Submission #361884

# Submission time Handle Problem Language Result Execution time Memory
361884 2021-01-31T20:41:44 Z ogibogi2004 Toll (BOI17_toll) C++14
100 / 100
 221 ms 35440 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
const ll MAXN=5e4+6;
const ll INF=1e15;
const ll logN=18;
const ll MAXK=6;
struct query
{
	ll lb,rb,lk,rk;
	ll pos;
};
ll ans[2*MAXN],n,m,k;
ll prefL[MAXN][MAXK][MAXK];
ll prefR[MAXN][MAXK][MAXK];
ll matrix1[MAXN][MAXK];
ll matrix2[MAXN][MAXK];
void dq(ll l,ll r,vector<query>q)
{
	if(q.size()==0)return;
	ll mid=(l+r)/2;
	for(ll i1=0;i1<k;i1++)
	{
		for(ll i2=0;i2<k;i2++)
		{
			prefR[mid][i1][i2]=INF;
			prefL[mid][i1][i2]=INF;
		}
	}
	for(ll i=0;i<k;i++)
	{
		prefR[mid][i][i]=0;
		prefL[mid][i][i]=0;
	}
	for(ll j=mid+1;j<=r;j++)
	{
		for(ll k1=0;k1<k;k1++)
		{
			for(ll k2=0;k2<k;k2++)
			{
				prefR[j][k1][k2]=INF;
			}
		}
		for(ll k1=0;k1<k;k1++)
		{
			for(ll k2=0;k2<k;k2++)
			{
				for(ll k3=0;k3<k;k3++)
				{
					prefR[j][k1][k2]=min(prefR[j][k1][k2],prefR[j-1][k1][k3]+matrix1[(j-1)*k+k3][k2]);
				}
			}
		}
	}
	for(ll j=mid-1;j>=l;j--)
	{
		for(ll k1=0;k1<k;k1++)
		{
			for(ll k2=0;k2<k;k2++)
			{
				prefL[j][k1][k2]=INF;
			}
		}
		for(ll k1=0;k1<k;k1++)
		{
			for(ll k2=0;k2<k;k2++)
			{
				for(ll k3=0;k3<k;k3++)
				{
					prefL[j][k1][k2]=min(prefL[j][k1][k2],prefL[j+1][k1][k3]+matrix2[(j+1)*k+k3][k2]);
				}
			}
		}
	}
	vector<query>for_left,for_right;
	for(auto xd:q)
	{
		if(xd.rb<mid)
		{
			for_left.push_back(xd);
			continue;
		}
		if(xd.lb>mid)
		{
			for_right.push_back(xd);
			continue;
		}
		//cout<<mid<<" "<<l<<" "<<r<<endl;
		//cout<<xd.pos<<" "<<xd.lb*k+xd.lk<<" "<<xd.rb*k+xd.rk<<" :\n";
		ans[xd.pos]=INF;
		for(ll k1=0;k1<k;k1++)
		{
			//cout<<k1<<" "<<prefL[xd.lb][k1][xd.lk]<<" "<<prefR[xd.rb][k1][xd.rk]<<endl;
			ans[xd.pos]=min(ans[xd.pos],prefL[xd.lb][k1][xd.lk]+prefR[xd.rb][k1][xd.rk]);
		}
	}
	dq(l,mid-1,for_left);
	dq(mid+1,r,for_right);
}
int main()
{
	for(ll i=0;i<MAXN;i++)
	{
		for(ll j1=0;j1<MAXK;j1++)
		{
			matrix1[i][j1]=INF;
			matrix2[i][j1]=INF;
		}
	}
	cin>>k>>n>>m;
	ll o;cin>>o;
	
	for(ll i=1;i<=m;i++)
	{
		ll x,y,z;
		cin>>x>>y>>z;
		matrix1[x][y%k]=z;
		matrix2[y][x%k]=z;
	}
	vector<query>queries;
	for(ll i=0;i<o;i++)
	{
		ll x,y;
		cin>>x>>y;
		queries.push_back({x/k,y/k,x%k,y%k,i});
	}
	dq(0,n/k+1,queries);
	for(ll i=0;i<o;i++)
	{
		if(ans[i]>=INF)cout<<-1<<endl;
		else cout<<ans[i]<<endl;
	}
return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 98 ms 34276 KB Output is correct
2 Correct 3 ms 5100 KB Output is correct
3 Correct 3 ms 5100 KB Output is correct
4 Correct 3 ms 5100 KB Output is correct
5 Correct 8 ms 5740 KB Output is correct
6 Correct 7 ms 5740 KB Output is correct
7 Correct 7 ms 5740 KB Output is correct
8 Correct 95 ms 35440 KB Output is correct
9 Correct 95 ms 35300 KB Output is correct
10 Correct 53 ms 34580 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 124 ms 17400 KB Output is correct
2 Correct 4 ms 5100 KB Output is correct
3 Correct 3 ms 5100 KB Output is correct
4 Correct 3 ms 5100 KB Output is correct
5 Correct 3 ms 5100 KB Output is correct
6 Correct 4 ms 5100 KB Output is correct
7 Correct 31 ms 7140 KB Output is correct
8 Correct 34 ms 7032 KB Output is correct
9 Correct 87 ms 28784 KB Output is correct
10 Correct 161 ms 15972 KB Output is correct
11 Correct 132 ms 18916 KB Output is correct
12 Correct 113 ms 15076 KB Output is correct
13 Correct 143 ms 10444 KB Output is correct
14 Correct 92 ms 11212 KB Output is correct
15 Correct 79 ms 9312 KB Output is correct
16 Correct 80 ms 9292 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5100 KB Output is correct
2 Correct 3 ms 4972 KB Output is correct
3 Correct 3 ms 4972 KB Output is correct
4 Correct 3 ms 4972 KB Output is correct
5 Correct 3 ms 4972 KB Output is correct
6 Correct 4 ms 5612 KB Output is correct
7 Correct 5 ms 5356 KB Output is correct
8 Correct 7 ms 5100 KB Output is correct
9 Correct 6 ms 5228 KB Output is correct
10 Correct 63 ms 32364 KB Output is correct
11 Correct 97 ms 18284 KB Output is correct
12 Correct 134 ms 15852 KB Output is correct
13 Correct 148 ms 15980 KB Output is correct
14 Correct 112 ms 15724 KB Output is correct
15 Correct 73 ms 9452 KB Output is correct
16 Correct 74 ms 9452 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5100 KB Output is correct
2 Correct 3 ms 4972 KB Output is correct
3 Correct 3 ms 4972 KB Output is correct
4 Correct 3 ms 4972 KB Output is correct
5 Correct 3 ms 4972 KB Output is correct
6 Correct 4 ms 5612 KB Output is correct
7 Correct 5 ms 5356 KB Output is correct
8 Correct 7 ms 5100 KB Output is correct
9 Correct 6 ms 5228 KB Output is correct
10 Correct 63 ms 32364 KB Output is correct
11 Correct 97 ms 18284 KB Output is correct
12 Correct 134 ms 15852 KB Output is correct
13 Correct 148 ms 15980 KB Output is correct
14 Correct 112 ms 15724 KB Output is correct
15 Correct 73 ms 9452 KB Output is correct
16 Correct 74 ms 9452 KB Output is correct
17 Correct 118 ms 20940 KB Output is correct
18 Correct 4 ms 5100 KB Output is correct
19 Correct 3 ms 5100 KB Output is correct
20 Correct 3 ms 5100 KB Output is correct
21 Correct 3 ms 5100 KB Output is correct
22 Correct 3 ms 5100 KB Output is correct
23 Correct 14 ms 6092 KB Output is correct
24 Correct 13 ms 5836 KB Output is correct
25 Correct 15 ms 5708 KB Output is correct
26 Correct 14 ms 5708 KB Output is correct
27 Correct 74 ms 34252 KB Output is correct
28 Correct 144 ms 16972 KB Output is correct
29 Correct 163 ms 17356 KB Output is correct
30 Correct 133 ms 16588 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 98 ms 34276 KB Output is correct
2 Correct 3 ms 5100 KB Output is correct
3 Correct 3 ms 5100 KB Output is correct
4 Correct 3 ms 5100 KB Output is correct
5 Correct 8 ms 5740 KB Output is correct
6 Correct 7 ms 5740 KB Output is correct
7 Correct 7 ms 5740 KB Output is correct
8 Correct 95 ms 35440 KB Output is correct
9 Correct 95 ms 35300 KB Output is correct
10 Correct 53 ms 34580 KB Output is correct
11 Correct 124 ms 17400 KB Output is correct
12 Correct 4 ms 5100 KB Output is correct
13 Correct 3 ms 5100 KB Output is correct
14 Correct 3 ms 5100 KB Output is correct
15 Correct 3 ms 5100 KB Output is correct
16 Correct 4 ms 5100 KB Output is correct
17 Correct 31 ms 7140 KB Output is correct
18 Correct 34 ms 7032 KB Output is correct
19 Correct 87 ms 28784 KB Output is correct
20 Correct 161 ms 15972 KB Output is correct
21 Correct 132 ms 18916 KB Output is correct
22 Correct 113 ms 15076 KB Output is correct
23 Correct 143 ms 10444 KB Output is correct
24 Correct 92 ms 11212 KB Output is correct
25 Correct 79 ms 9312 KB Output is correct
26 Correct 80 ms 9292 KB Output is correct
27 Correct 3 ms 5100 KB Output is correct
28 Correct 3 ms 4972 KB Output is correct
29 Correct 3 ms 4972 KB Output is correct
30 Correct 3 ms 4972 KB Output is correct
31 Correct 3 ms 4972 KB Output is correct
32 Correct 4 ms 5612 KB Output is correct
33 Correct 5 ms 5356 KB Output is correct
34 Correct 7 ms 5100 KB Output is correct
35 Correct 6 ms 5228 KB Output is correct
36 Correct 63 ms 32364 KB Output is correct
37 Correct 97 ms 18284 KB Output is correct
38 Correct 134 ms 15852 KB Output is correct
39 Correct 148 ms 15980 KB Output is correct
40 Correct 112 ms 15724 KB Output is correct
41 Correct 73 ms 9452 KB Output is correct
42 Correct 74 ms 9452 KB Output is correct
43 Correct 118 ms 20940 KB Output is correct
44 Correct 4 ms 5100 KB Output is correct
45 Correct 3 ms 5100 KB Output is correct
46 Correct 3 ms 5100 KB Output is correct
47 Correct 3 ms 5100 KB Output is correct
48 Correct 3 ms 5100 KB Output is correct
49 Correct 14 ms 6092 KB Output is correct
50 Correct 13 ms 5836 KB Output is correct
51 Correct 15 ms 5708 KB Output is correct
52 Correct 14 ms 5708 KB Output is correct
53 Correct 74 ms 34252 KB Output is correct
54 Correct 144 ms 16972 KB Output is correct
55 Correct 163 ms 17356 KB Output is correct
56 Correct 133 ms 16588 KB Output is correct
57 Correct 221 ms 16740 KB Output is correct
58 Correct 96 ms 35300 KB Output is correct
59 Correct 137 ms 22116 KB Output is correct