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Submission #696814

# Submission time Handle Problem Language Result Execution time Memory
696814 2023-02-07T10:28:48 Z vjudge1 Toll (BOI17_toll) C++17
100 / 100
 1065 ms 386380 KB 
#include<bits/stdc++.h>

using namespace std;
typedef long long int ll;
typedef pair<ll, ll> pii;
#define fi first
#define se second
#define gcd __gcd
#define endl '\n'
const int N=200050,M=1000000007;
const ll INF=1e18;

struct matrix{
	ll n, m;
	vector<vector<ll>> a;
	
	matrix(ll x, ll y, ll v=0){
		n=x, m=y;
		a.assign(n, vector<ll>(m, v));
	}
	
	auto & operator [](ll i){return a[i];}
	const auto & operator [](ll i)const{return a[i];}
	
	matrix()=default;
	
	friend ostream& operator <<(ostream& stream, const matrix &x){
		for(auto i:x.a){
			for(auto j:i) stream<<j<<" ";
			stream<<endl;
		}
		return stream;
	}
	
	matrix operator *(const matrix b){
		matrix a=*this, res(a.n, b.m, INF);
		// cout<<b<<a;
		for(ll i=0; i<a.n; i++)
			for(ll j=0; j<b.m; j++)
				for(ll k=0; k<a.m; k++)
					res[i][j]=min(res[i][j], a[i][k]+b[k][j]);
		// cout<<res<<"\n";
		return res;
	}
};

matrix p[N][17];
ll k, n, m, q, a, b, t;

signed main(){
	ios_base::sync_with_stdio(NULL); 
	cin.tie(nullptr); cout.tie(nullptr);
	cin>>k>>n>>m>>q;
	for(ll i=0; i<n; i++)
		for(ll j=0; j<17; j++)  p[i][j]=matrix(k, k, INF);
		
	while(m--){
		cin>>a>>b>>t;
		p[a/k][0][a%k][b%k]=t;
	}
	for(ll i=1; (1<<i)<=n; i++)
		for(ll j=0; j+(1<<i)-1<=n; j++){
			p[j][i]=p[j][i-1]*p[j+(1<<(i-1))][i-1];
		}
	while(q--){
		cin>>a>>b;
		if(a == b){
    		cout<<0<<endl;
    		continue;
    	}
		ll now=a/k, l=b/k-a/k;
		matrix res(k, k, INF);
		for(ll i=0; i<k; i++) res[i][i]=0;
		for(ll i=0; i<17; i++)
			if(l&(1<<i)){
				res=res*p[now][i];
				now+=(1<<i);
			}
		cout<<(res[a%k][b%k]==INF? -1: res[a%k][b%k])<<endl;
	}
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 426 ms 186664 KB Output is correct
2 Correct 68 ms 133392 KB Output is correct
3 Correct 69 ms 133372 KB Output is correct
4 Correct 61 ms 133372 KB Output is correct
5 Correct 66 ms 134396 KB Output is correct
6 Correct 66 ms 134400 KB Output is correct
7 Correct 69 ms 134428 KB Output is correct
8 Correct 422 ms 186664 KB Output is correct
9 Correct 401 ms 186668 KB Output is correct
10 Correct 380 ms 186668 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 597 ms 239868 KB Output is correct
2 Correct 63 ms 133328 KB Output is correct
3 Correct 62 ms 133416 KB Output is correct
4 Correct 63 ms 133356 KB Output is correct
5 Correct 63 ms 133348 KB Output is correct
6 Correct 62 ms 133472 KB Output is correct
7 Correct 87 ms 134504 KB Output is correct
8 Correct 84 ms 135484 KB Output is correct
9 Correct 388 ms 186556 KB Output is correct
10 Correct 791 ms 279872 KB Output is correct
11 Correct 587 ms 239980 KB Output is correct
12 Correct 807 ms 279788 KB Output is correct
13 Correct 808 ms 317176 KB Output is correct
14 Correct 501 ms 221240 KB Output is correct
15 Correct 816 ms 317048 KB Output is correct
16 Correct 770 ms 317132 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 62 ms 133288 KB Output is correct
2 Correct 67 ms 133312 KB Output is correct
3 Correct 63 ms 133332 KB Output is correct
4 Correct 65 ms 133340 KB Output is correct
5 Correct 63 ms 133368 KB Output is correct
6 Correct 67 ms 134388 KB Output is correct
7 Correct 69 ms 135528 KB Output is correct
8 Correct 87 ms 139448 KB Output is correct
9 Correct 89 ms 138464 KB Output is correct
10 Correct 386 ms 186648 KB Output is correct
11 Correct 577 ms 239868 KB Output is correct
12 Correct 780 ms 279796 KB Output is correct
13 Correct 764 ms 279788 KB Output is correct
14 Correct 757 ms 279784 KB Output is correct
15 Correct 745 ms 317004 KB Output is correct
16 Correct 754 ms 317040 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 62 ms 133288 KB Output is correct
2 Correct 67 ms 133312 KB Output is correct
3 Correct 63 ms 133332 KB Output is correct
4 Correct 65 ms 133340 KB Output is correct
5 Correct 63 ms 133368 KB Output is correct
6 Correct 67 ms 134388 KB Output is correct
7 Correct 69 ms 135528 KB Output is correct
8 Correct 87 ms 139448 KB Output is correct
9 Correct 89 ms 138464 KB Output is correct
10 Correct 386 ms 186648 KB Output is correct
11 Correct 577 ms 239868 KB Output is correct
12 Correct 780 ms 279796 KB Output is correct
13 Correct 764 ms 279788 KB Output is correct
14 Correct 757 ms 279784 KB Output is correct
15 Correct 745 ms 317004 KB Output is correct
16 Correct 754 ms 317040 KB Output is correct
17 Correct 572 ms 239924 KB Output is correct
18 Correct 63 ms 133324 KB Output is correct
19 Correct 67 ms 133436 KB Output is correct
20 Correct 64 ms 133364 KB Output is correct
21 Correct 64 ms 133360 KB Output is correct
22 Correct 62 ms 133460 KB Output is correct
23 Correct 71 ms 134476 KB Output is correct
24 Correct 76 ms 135536 KB Output is correct
25 Correct 89 ms 139440 KB Output is correct
26 Correct 84 ms 138468 KB Output is correct
27 Correct 401 ms 186616 KB Output is correct
28 Correct 784 ms 279808 KB Output is correct
29 Correct 823 ms 279784 KB Output is correct
30 Correct 776 ms 279808 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 426 ms 186664 KB Output is correct
2 Correct 68 ms 133392 KB Output is correct
3 Correct 69 ms 133372 KB Output is correct
4 Correct 61 ms 133372 KB Output is correct
5 Correct 66 ms 134396 KB Output is correct
6 Correct 66 ms 134400 KB Output is correct
7 Correct 69 ms 134428 KB Output is correct
8 Correct 422 ms 186664 KB Output is correct
9 Correct 401 ms 186668 KB Output is correct
10 Correct 380 ms 186668 KB Output is correct
11 Correct 597 ms 239868 KB Output is correct
12 Correct 63 ms 133328 KB Output is correct
13 Correct 62 ms 133416 KB Output is correct
14 Correct 63 ms 133356 KB Output is correct
15 Correct 63 ms 133348 KB Output is correct
16 Correct 62 ms 133472 KB Output is correct
17 Correct 87 ms 134504 KB Output is correct
18 Correct 84 ms 135484 KB Output is correct
19 Correct 388 ms 186556 KB Output is correct
20 Correct 791 ms 279872 KB Output is correct
21 Correct 587 ms 239980 KB Output is correct
22 Correct 807 ms 279788 KB Output is correct
23 Correct 808 ms 317176 KB Output is correct
24 Correct 501 ms 221240 KB Output is correct
25 Correct 816 ms 317048 KB Output is correct
26 Correct 770 ms 317132 KB Output is correct
27 Correct 62 ms 133288 KB Output is correct
28 Correct 67 ms 133312 KB Output is correct
29 Correct 63 ms 133332 KB Output is correct
30 Correct 65 ms 133340 KB Output is correct
31 Correct 63 ms 133368 KB Output is correct
32 Correct 67 ms 134388 KB Output is correct
33 Correct 69 ms 135528 KB Output is correct
34 Correct 87 ms 139448 KB Output is correct
35 Correct 89 ms 138464 KB Output is correct
36 Correct 386 ms 186648 KB Output is correct
37 Correct 577 ms 239868 KB Output is correct
38 Correct 780 ms 279796 KB Output is correct
39 Correct 764 ms 279788 KB Output is correct
40 Correct 757 ms 279784 KB Output is correct
41 Correct 745 ms 317004 KB Output is correct
42 Correct 754 ms 317040 KB Output is correct
43 Correct 572 ms 239924 KB Output is correct
44 Correct 63 ms 133324 KB Output is correct
45 Correct 67 ms 133436 KB Output is correct
46 Correct 64 ms 133364 KB Output is correct
47 Correct 64 ms 133360 KB Output is correct
48 Correct 62 ms 133460 KB Output is correct
49 Correct 71 ms 134476 KB Output is correct
50 Correct 76 ms 135536 KB Output is correct
51 Correct 89 ms 139440 KB Output is correct
52 Correct 84 ms 138468 KB Output is correct
53 Correct 401 ms 186616 KB Output is correct
54 Correct 784 ms 279808 KB Output is correct
55 Correct 823 ms 279784 KB Output is correct
56 Correct 776 ms 279808 KB Output is correct
57 Correct 1065 ms 386380 KB Output is correct
58 Correct 407 ms 186676 KB Output is correct
59 Correct 606 ms 240064 KB Output is correct