oj.uz

Submission #696059

# Submission time Handle Problem Language Result Execution time Memory
696059 2023-02-05T09:39:41 Z anhduc2701 Toll (BOI17_toll) C++17
100 / 100
 343 ms 179740 KB 
/*
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimize("unroll-loops")
*/
#include<bits/stdc++.h>
using namespace std;
#define all(x) x.begin(), x.end()
#define len(x) ll(x.size())
#define eb emplace_back
#define PI 3.14159265359
#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define MIN(v) *min_element(all(v))
#define MAX(v) *max_element(all(v))
#define BIT(x,i) (1&((x)>>(i)))
#define MASK(x) (1LL<<(x))
#define task "tnc"  
typedef long long ll;
const ll INF=1e18;
const int maxn=1e6+5;
const int mod=1e9+7;
const int mo=998244353;
using pi=pair<ll,ll>;
using vi=vector<ll>;
using pii=pair<pair<ll,ll>,ll>;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int n,k,m,o;
struct Matrix{
	ll a[5][5];
	Matrix(){
		for(int i=0;i<5;i++){
			for(int j=0;j<5;j++){
				a[i][j]=1e9;
			}
		}
	}
	Matrix operator+(const Matrix&b){
		Matrix res;
		for(int i=0;i<5;i++){
			for(int j=0;j<5;j++){
				res.a[i][j]=1e9;
				for(int z=0;z<5;z++){
					res.a[i][j]=min(res.a[i][j],a[i][z]+b.a[z][j]);
				}
			}
		}
		return res;
	}
};
Matrix d[50005][18];
signed main()
{
	cin.tie(0),cout.tie(0)->sync_with_stdio(0);
    //freopen(task".inp" , "r" , stdin);
    //freopen(task".out" , "w" , stdout);
    cin>>k>>n>>m>>o;
    for(int i=1;i<=m;i++){
    	int a,b,t;
    	cin>>a>>b>>t;
    	d[a/k][0].a[a%k][b%k]=t;
    }
    int sl=(n+k-1)/k;
    for(int i=1;(1<<i)<=n;i++){
    	for(int j=0;j+(1<<i)-1<=n;j++){
    		d[j][i]=d[j][i-1]+d[j+(1<<(i-1))][i-1];
    	}
    }
    for(int i=1;i<=o;i++){
    	int a,b;
    	cin>>a>>b;
    	Matrix s;
    	for(int j=0;j<5;j++){
    		s.a[j][j]=0;
    		
    	}
    	if(a==b){
    		cout<<0<<"\n";
    		continue;
    	}
    	int lop=a/k;
    	int lop1=b/k;
    	if(lop1<=lop){
    		cout<<-1<<"\n";
    	}
    	else{
    		int hieu=lop1-lop;
    		for(int j=16;j>=0;j--){
    			if((1<<j)&hieu){
    				s=s+d[lop][j];
    				lop+=(1<<j);
    			}
    		}
    		if(s.a[a%k][b%k]==1e9)cout<<-1<<"\n";
    		else cout<<s.a[a%k][b%k]<<"\n";
    	}
    }
    return 0;
}

Compilation message

toll.cpp: In function 'int main()':
toll.cpp:65:9: warning: unused variable 'sl' [-Wunused-variable]
   65 |     int sl=(n+k-1)/k;
      |         ^~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 282 ms 176500 KB Output is correct
2 Correct 78 ms 176376 KB Output is correct
3 Correct 83 ms 176392 KB Output is correct
4 Correct 75 ms 176568 KB Output is correct
5 Correct 80 ms 176388 KB Output is correct
6 Correct 76 ms 176388 KB Output is correct
7 Correct 75 ms 176384 KB Output is correct
8 Correct 282 ms 177364 KB Output is correct
9 Correct 282 ms 177320 KB Output is correct
10 Correct 259 ms 176496 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 309 ms 176448 KB Output is correct
2 Correct 69 ms 176348 KB Output is correct
3 Correct 78 ms 176364 KB Output is correct
4 Correct 72 ms 176400 KB Output is correct
5 Correct 70 ms 176336 KB Output is correct
6 Correct 81 ms 176368 KB Output is correct
7 Correct 81 ms 176532 KB Output is correct
8 Correct 91 ms 176604 KB Output is correct
9 Correct 306 ms 177264 KB Output is correct
10 Correct 288 ms 178692 KB Output is correct
11 Correct 296 ms 178132 KB Output is correct
12 Correct 298 ms 177840 KB Output is correct
13 Correct 232 ms 178896 KB Output is correct
14 Correct 199 ms 177888 KB Output is correct
15 Correct 191 ms 177660 KB Output is correct
16 Correct 212 ms 177656 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 176432 KB Output is correct
2 Correct 73 ms 176340 KB Output is correct
3 Correct 76 ms 176452 KB Output is correct
4 Correct 75 ms 176360 KB Output is correct
5 Correct 69 ms 176404 KB Output is correct
6 Correct 70 ms 176380 KB Output is correct
7 Correct 70 ms 176456 KB Output is correct
8 Correct 79 ms 176504 KB Output is correct
9 Correct 76 ms 176404 KB Output is correct
10 Correct 285 ms 177248 KB Output is correct
11 Correct 296 ms 178028 KB Output is correct
12 Correct 289 ms 178672 KB Output is correct
13 Correct 298 ms 178796 KB Output is correct
14 Correct 328 ms 178260 KB Output is correct
15 Correct 201 ms 177752 KB Output is correct
16 Correct 196 ms 177632 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 176432 KB Output is correct
2 Correct 73 ms 176340 KB Output is correct
3 Correct 76 ms 176452 KB Output is correct
4 Correct 75 ms 176360 KB Output is correct
5 Correct 69 ms 176404 KB Output is correct
6 Correct 70 ms 176380 KB Output is correct
7 Correct 70 ms 176456 KB Output is correct
8 Correct 79 ms 176504 KB Output is correct
9 Correct 76 ms 176404 KB Output is correct
10 Correct 285 ms 177248 KB Output is correct
11 Correct 296 ms 178028 KB Output is correct
12 Correct 289 ms 178672 KB Output is correct
13 Correct 298 ms 178796 KB Output is correct
14 Correct 328 ms 178260 KB Output is correct
15 Correct 201 ms 177752 KB Output is correct
16 Correct 196 ms 177632 KB Output is correct
17 Correct 280 ms 178088 KB Output is correct
18 Correct 70 ms 176376 KB Output is correct
19 Correct 70 ms 176404 KB Output is correct
20 Correct 77 ms 176432 KB Output is correct
21 Correct 70 ms 176364 KB Output is correct
22 Correct 74 ms 176404 KB Output is correct
23 Correct 73 ms 176380 KB Output is correct
24 Correct 75 ms 176460 KB Output is correct
25 Correct 73 ms 176532 KB Output is correct
26 Correct 73 ms 176404 KB Output is correct
27 Correct 286 ms 177288 KB Output is correct
28 Correct 306 ms 178640 KB Output is correct
29 Correct 284 ms 178992 KB Output is correct
30 Correct 313 ms 178364 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 282 ms 176500 KB Output is correct
2 Correct 78 ms 176376 KB Output is correct
3 Correct 83 ms 176392 KB Output is correct
4 Correct 75 ms 176568 KB Output is correct
5 Correct 80 ms 176388 KB Output is correct
6 Correct 76 ms 176388 KB Output is correct
7 Correct 75 ms 176384 KB Output is correct
8 Correct 282 ms 177364 KB Output is correct
9 Correct 282 ms 177320 KB Output is correct
10 Correct 259 ms 176496 KB Output is correct
11 Correct 309 ms 176448 KB Output is correct
12 Correct 69 ms 176348 KB Output is correct
13 Correct 78 ms 176364 KB Output is correct
14 Correct 72 ms 176400 KB Output is correct
15 Correct 70 ms 176336 KB Output is correct
16 Correct 81 ms 176368 KB Output is correct
17 Correct 81 ms 176532 KB Output is correct
18 Correct 91 ms 176604 KB Output is correct
19 Correct 306 ms 177264 KB Output is correct
20 Correct 288 ms 178692 KB Output is correct
21 Correct 296 ms 178132 KB Output is correct
22 Correct 298 ms 177840 KB Output is correct
23 Correct 232 ms 178896 KB Output is correct
24 Correct 199 ms 177888 KB Output is correct
25 Correct 191 ms 177660 KB Output is correct
26 Correct 212 ms 177656 KB Output is correct
27 Correct 68 ms 176432 KB Output is correct
28 Correct 73 ms 176340 KB Output is correct
29 Correct 76 ms 176452 KB Output is correct
30 Correct 75 ms 176360 KB Output is correct
31 Correct 69 ms 176404 KB Output is correct
32 Correct 70 ms 176380 KB Output is correct
33 Correct 70 ms 176456 KB Output is correct
34 Correct 79 ms 176504 KB Output is correct
35 Correct 76 ms 176404 KB Output is correct
36 Correct 285 ms 177248 KB Output is correct
37 Correct 296 ms 178028 KB Output is correct
38 Correct 289 ms 178672 KB Output is correct
39 Correct 298 ms 178796 KB Output is correct
40 Correct 328 ms 178260 KB Output is correct
41 Correct 201 ms 177752 KB Output is correct
42 Correct 196 ms 177632 KB Output is correct
43 Correct 280 ms 178088 KB Output is correct
44 Correct 70 ms 176376 KB Output is correct
45 Correct 70 ms 176404 KB Output is correct
46 Correct 77 ms 176432 KB Output is correct
47 Correct 70 ms 176364 KB Output is correct
48 Correct 74 ms 176404 KB Output is correct
49 Correct 73 ms 176380 KB Output is correct
50 Correct 75 ms 176460 KB Output is correct
51 Correct 73 ms 176532 KB Output is correct
52 Correct 73 ms 176404 KB Output is correct
53 Correct 286 ms 177288 KB Output is correct
54 Correct 306 ms 178640 KB Output is correct
55 Correct 284 ms 178992 KB Output is correct
56 Correct 313 ms 178364 KB Output is correct
57 Correct 339 ms 179740 KB Output is correct
58 Correct 334 ms 177480 KB Output is correct
59 Correct 343 ms 178144 KB Output is correct