oj.uz

Submission #704607

# Submission time Handle Problem Language Result Execution time Memory
704607 2023-03-02T12:03:53 Z hoangnghiep Toll (BOI17_toll) C++14
100 / 100
 243 ms 199304 KB 
#include<bits/stdc++.h>
#define int long long
#define f first
#define s second
#define repeat(i,a,b) for(int i=a;i<=b;i++)
#define pb push_back
#define p push
#define pii pair<int,int>
#define piii pair<int,pair<int,int>>
#define vii vector<vector<int>>
#define vi vector<int>
//#define DEBUG
//#define multipletest
using namespace std;
const int LIM=5e4;
const int mod=1e9+7;
const int maxn=20;
const int inf=1e9;
int n,m,x,y,k,t,e,q,o;
int dx[8]={1,-1,0,0,-1,-1,1,1};
int dy[8]={0,0,-1,1,1,-1,1,-1};
char c;
string s;
int a[LIM+5],factorial[(1<<maxn)+5],inv_fact[(1<<maxn)+5];
bool notprime[LIM+5];
map<int,int> mp;
char grid[100+5][100+5];
int power(int a,int b){
   if(b==0) return 1;
    int t=power(a,b/2);
    t = t * t %mod;
    if(b%2==1) t = t * a %mod;
    return t;
}
struct matrix{
	int a[5][5];
	matrix(int x=inf){
		for(int i=0;i<5;++i){
			for(int j=0;j<5;++j){
				a[i][j]=x;
			}
		}
	}
	matrix operator *(const matrix & u){
		matrix ans;
		for(int i=0;i<5;++i){
			for(int j=0;j<5;++j){
				int res=inf;
				for(int k=0;k<5;++k){
					res = min(res,a[i][k] + u.a[k][j]);
				}
				ans.a[i][j]=res;
			}
		}
		return ans;
	}
};
bool check(int x,int y){
    if(x<=0 || x>n || y<=0 || y>m || grid[x][y]=='T'){
   return false;
     }
    return true;
}
class DSU{
	int *parent;
	int *rank;
	int *tot;
	public:
	DSU(int n){
		rank=new int[n+5];
		parent=new int[n+5];
		tot=new int [n+5];
		for(int i=0;i<n+5;i++){
			parent[i]=i;
			rank[i]=0;
			tot[i]=1;
		}
	}
	int find(int i){
		if(parent[i]==i){
			return i;
		}
		return parent[i]=find(parent[i]);
	}
	void unite(int u,int v){
		int i=find(u);
		int j=find(v);
		if(i!=j){
			if(rank[i]>rank[j]){
				parent[j]=i;
				tot[i]+=tot[j];
			}
			else if(rank[i]<rank[j]){
				parent[i]=j;
				tot[j]+=tot[i];
			}
			else{
				parent[j]=i;
				rank[i]++;
				tot[i]+=tot[j];
			}
		}
	}
	int total(int u){
	   return tot[u];
	}
};
void precal(int n){
	factorial[0]=1;
	inv_fact[0]=1;
    for (int i = 1; i <n; ++i)
	{
		factorial[i] = factorial[i - 1] * i % mod;
		inv_fact[i] = inv_fact[i - 1] * power(i, mod - 2) % mod;
	}
}
int choose(int n,int k){
	if(k<0 || k>n) return 0;
	return factorial[n] * inv_fact[n-k] % mod * inv_fact[k] %mod;
}
void Sieve(){
	notprime[0]=notprime[1]=true;
    for(int i=2;i<LIM+5;++i){
    	if(notprime[i]==false){
    	for(int j=i*i;j<LIM+5;j+=i){
    		notprime[j]=true;
		}
    }
	}
}
matrix up[20][LIM+5];
void solve(){
//Sieve();
//   precal();
    cin>>k>>n>>m>>o;
    for(int i=1;i<=m;++i){
    	int u,v,w;
    	cin>>u>>v>>w;
    	up[0][(u/k)].a[u%k][v%k]=w;
	}
	for(int i=1;((1<<i)<=n);++i){
		for(int j=0;j+(1<<i)-1<=n;++j){
			 up[i][j]=up[i-1][j] * up[i-1][j+(1<<(i-1))];
		}
	}
	for(int i=0;i<o;++i){
		int a,b;
		cin>>a>>b;
		matrix res;
//		cout<<a<<b<<endl;
		for(int i=0;i<5;++i){
			res.a[i][i]=0;
		}
		if(a==b){
			cout<<0<<endl;
		}
		int div1=(a/k),div2=(b/k);
		int dist=div2-div1;
		int temp=0;
	    while(dist>0){
	    	if(dist%2==1) {
			res = res * up[temp][div1];
			div1 = div1 + (1<<temp);
		   }
		   temp++;
		   dist>>=1;
		}
		if(res.a[a%k][b%k]==inf) cout<<-1<<endl;
		else cout<<res.a[a%k][b%k]<<endl;
	}
}
signed main(){
  // freopen(".inp","r",stdin);
  // freopen(".out","w",stdout);
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
	int test;
	test=1;
	#ifdef multipletest
	cin>>test;
	#endif
	while(test--){
        solve();
        #ifdef DEBUG
		cerr << "Runtime is: " << clock() * 1.0 / CLOCKS_PER_SEC << endl;
	    #endif
	}
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 218 ms 196956 KB Output is correct
2 Correct 79 ms 195996 KB Output is correct
3 Correct 79 ms 195952 KB Output is correct
4 Correct 81 ms 196120 KB Output is correct
5 Correct 80 ms 196028 KB Output is correct
6 Correct 79 ms 196044 KB Output is correct
7 Correct 79 ms 195952 KB Output is correct
8 Correct 206 ms 196940 KB Output is correct
9 Correct 214 ms 197064 KB Output is correct
10 Correct 194 ms 196168 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 212 ms 197580 KB Output is correct
2 Correct 77 ms 196076 KB Output is correct
3 Correct 75 ms 196008 KB Output is correct
4 Correct 77 ms 195912 KB Output is correct
5 Correct 77 ms 195916 KB Output is correct
6 Correct 76 ms 195988 KB Output is correct
7 Correct 97 ms 196044 KB Output is correct
8 Correct 94 ms 196172 KB Output is correct
9 Correct 202 ms 196880 KB Output is correct
10 Correct 214 ms 198292 KB Output is correct
11 Correct 222 ms 197744 KB Output is correct
12 Correct 201 ms 197316 KB Output is correct
13 Correct 171 ms 198412 KB Output is correct
14 Correct 151 ms 197452 KB Output is correct
15 Correct 152 ms 197240 KB Output is correct
16 Correct 161 ms 197160 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 82 ms 195916 KB Output is correct
2 Correct 78 ms 195984 KB Output is correct
3 Correct 81 ms 195952 KB Output is correct
4 Correct 78 ms 195916 KB Output is correct
5 Correct 83 ms 196036 KB Output is correct
6 Correct 78 ms 195928 KB Output is correct
7 Correct 82 ms 196044 KB Output is correct
8 Correct 92 ms 195988 KB Output is correct
9 Correct 94 ms 196004 KB Output is correct
10 Correct 192 ms 196720 KB Output is correct
11 Correct 191 ms 197452 KB Output is correct
12 Correct 212 ms 198232 KB Output is correct
13 Correct 207 ms 198444 KB Output is correct
14 Correct 213 ms 197832 KB Output is correct
15 Correct 199 ms 197216 KB Output is correct
16 Correct 161 ms 197208 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 82 ms 195916 KB Output is correct
2 Correct 78 ms 195984 KB Output is correct
3 Correct 81 ms 195952 KB Output is correct
4 Correct 78 ms 195916 KB Output is correct
5 Correct 83 ms 196036 KB Output is correct
6 Correct 78 ms 195928 KB Output is correct
7 Correct 82 ms 196044 KB Output is correct
8 Correct 92 ms 195988 KB Output is correct
9 Correct 94 ms 196004 KB Output is correct
10 Correct 192 ms 196720 KB Output is correct
11 Correct 191 ms 197452 KB Output is correct
12 Correct 212 ms 198232 KB Output is correct
13 Correct 207 ms 198444 KB Output is correct
14 Correct 213 ms 197832 KB Output is correct
15 Correct 199 ms 197216 KB Output is correct
16 Correct 161 ms 197208 KB Output is correct
17 Correct 222 ms 197584 KB Output is correct
18 Correct 84 ms 195956 KB Output is correct
19 Correct 93 ms 195988 KB Output is correct
20 Correct 87 ms 196020 KB Output is correct
21 Correct 89 ms 196032 KB Output is correct
22 Correct 86 ms 195904 KB Output is correct
23 Correct 102 ms 195968 KB Output is correct
24 Correct 89 ms 196080 KB Output is correct
25 Correct 95 ms 196036 KB Output is correct
26 Correct 95 ms 196060 KB Output is correct
27 Correct 191 ms 196876 KB Output is correct
28 Correct 211 ms 198156 KB Output is correct
29 Correct 214 ms 198492 KB Output is correct
30 Correct 202 ms 197872 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 218 ms 196956 KB Output is correct
2 Correct 79 ms 195996 KB Output is correct
3 Correct 79 ms 195952 KB Output is correct
4 Correct 81 ms 196120 KB Output is correct
5 Correct 80 ms 196028 KB Output is correct
6 Correct 79 ms 196044 KB Output is correct
7 Correct 79 ms 195952 KB Output is correct
8 Correct 206 ms 196940 KB Output is correct
9 Correct 214 ms 197064 KB Output is correct
10 Correct 194 ms 196168 KB Output is correct
11 Correct 212 ms 197580 KB Output is correct
12 Correct 77 ms 196076 KB Output is correct
13 Correct 75 ms 196008 KB Output is correct
14 Correct 77 ms 195912 KB Output is correct
15 Correct 77 ms 195916 KB Output is correct
16 Correct 76 ms 195988 KB Output is correct
17 Correct 97 ms 196044 KB Output is correct
18 Correct 94 ms 196172 KB Output is correct
19 Correct 202 ms 196880 KB Output is correct
20 Correct 214 ms 198292 KB Output is correct
21 Correct 222 ms 197744 KB Output is correct
22 Correct 201 ms 197316 KB Output is correct
23 Correct 171 ms 198412 KB Output is correct
24 Correct 151 ms 197452 KB Output is correct
25 Correct 152 ms 197240 KB Output is correct
26 Correct 161 ms 197160 KB Output is correct
27 Correct 82 ms 195916 KB Output is correct
28 Correct 78 ms 195984 KB Output is correct
29 Correct 81 ms 195952 KB Output is correct
30 Correct 78 ms 195916 KB Output is correct
31 Correct 83 ms 196036 KB Output is correct
32 Correct 78 ms 195928 KB Output is correct
33 Correct 82 ms 196044 KB Output is correct
34 Correct 92 ms 195988 KB Output is correct
35 Correct 94 ms 196004 KB Output is correct
36 Correct 192 ms 196720 KB Output is correct
37 Correct 191 ms 197452 KB Output is correct
38 Correct 212 ms 198232 KB Output is correct
39 Correct 207 ms 198444 KB Output is correct
40 Correct 213 ms 197832 KB Output is correct
41 Correct 199 ms 197216 KB Output is correct
42 Correct 161 ms 197208 KB Output is correct
43 Correct 222 ms 197584 KB Output is correct
44 Correct 84 ms 195956 KB Output is correct
45 Correct 93 ms 195988 KB Output is correct
46 Correct 87 ms 196020 KB Output is correct
47 Correct 89 ms 196032 KB Output is correct
48 Correct 86 ms 195904 KB Output is correct
49 Correct 102 ms 195968 KB Output is correct
50 Correct 89 ms 196080 KB Output is correct
51 Correct 95 ms 196036 KB Output is correct
52 Correct 95 ms 196060 KB Output is correct
53 Correct 191 ms 196876 KB Output is correct
54 Correct 211 ms 198156 KB Output is correct
55 Correct 214 ms 198492 KB Output is correct
56 Correct 202 ms 197872 KB Output is correct
57 Correct 243 ms 199304 KB Output is correct
58 Correct 222 ms 197068 KB Output is correct
59 Correct 219 ms 197828 KB Output is correct