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Submission #667398

# Submission time Handle Problem Language Result Execution time Memory
667398 2022-12-01T09:06:30 Z Znb_Jfrian Toll (BOI17_toll) C++14
100 / 100
 210 ms 148972 KB 
//______________"In The Name Of GOD"______________

#include <bits/stdc++.h>
using namespace std;


typedef long long ll;
typedef long double ld;
typedef pair <ll, ll> pll;
typedef pair <int, int> pii;


const int lg        = 20;
const int mod       = 1e9 + 7;
const ll  inf       = 1e15 + 100;
const int maxn      = 1e6 + 100;
    

#define cl       	clear
#define F        	first
#define S       	second
#define pb       	push_back
#define Sz(x)    	int((x).size())
#define all(x)   	(x).begin(), (x).end()


ll a[maxn], b[maxn], dp[maxn], pd[maxn], ans[maxn], n, k, bl;
vector <pii> adj[maxn], jda[maxn];
vector <int> qu[4 * maxn];

inline void avocado(int nd = 1, int s = 0, int e = bl){
    if (e - s == 1) return;
    int mid = (s + e) / 2, lc = 2 * nd, rc = 2 * nd + 1;
    avocado(lc, s, mid), avocado(rc, mid, e);
    for (int i = 0; i < k; i ++){
        int v = mid * k + i;
        if(v >= n) break;
        fill(dp + s * k, dp + e * k, inf), fill(pd + s * k, pd + e * k, inf);
        dp[v] = 0;
        for (int j = v; j < k * e; j ++){
            for (auto p : adj[j]){ 
                int u = p.F, w = p.S;
                dp[u] = min(dp[u], dp[j] + w);
            }
        }
        pd[v] = 0;
        for (int j = v; j >= s * k; j --){
            for (auto p : jda[j]){
                int u = p.F, w = p.S;
                pd[u] = min(pd[u], pd[j] + w);
            }
        }
        for (int x : qu[nd]){
            ans[x] = min(ans[x], pd[a[x]] + dp[b[x]]);
        }
    }
    return;
}

inline int find(int l, int r, int v = 1, int s = 0, int e = bl){
    if(e - s == 1) return v;
    int mid = (s + e) / 2, lc = 2 * v, rc = lc + 1;
    if(r <= mid) return find(l, r, lc, s, mid);
    if(mid < l) return find(l, r, rc, mid, e);
    return v;
}

int main(){
    ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
    int m, q;
    cin >> k >> n >> m >> q;
    bl = (n + k - 1) / k;
    for (int i = 0; i < m; i ++){
        int v, u, t;
        cin >> v >> u >> t;
        adj[v].pb({u, t});
        jda[u].pb({v, t});
    }
    fill(ans, ans + q, inf);
    for (int i = 0; i < q; i ++){
        cin >> a[i] >> b[i];
        if(a[i] > b[i]) continue;
        qu[find(a[i] / k, b[i] / k + 1)].pb(i);
    }
    avocado();
    for (int i = 0; i < q; i ++) cout << (ans[i] >= mod ? -1 : ans[i]) << '\n';
    return 0;
}
/*test case :

*/

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 109 ms 145492 KB Output is correct
2 Correct 62 ms 141264 KB Output is correct
3 Correct 64 ms 141256 KB Output is correct
4 Correct 63 ms 141188 KB Output is correct
5 Correct 63 ms 141364 KB Output is correct
6 Correct 72 ms 141300 KB Output is correct
7 Correct 71 ms 141468 KB Output is correct
8 Correct 99 ms 146420 KB Output is correct
9 Correct 100 ms 146128 KB Output is correct
10 Correct 69 ms 142468 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 134 ms 145564 KB Output is correct
2 Correct 66 ms 141256 KB Output is correct
3 Correct 64 ms 141168 KB Output is correct
4 Correct 64 ms 141136 KB Output is correct
5 Correct 65 ms 141260 KB Output is correct
6 Correct 68 ms 141208 KB Output is correct
7 Correct 68 ms 141648 KB Output is correct
8 Correct 71 ms 141732 KB Output is correct
9 Correct 105 ms 146368 KB Output is correct
10 Correct 164 ms 148432 KB Output is correct
11 Correct 129 ms 146740 KB Output is correct
12 Correct 129 ms 146356 KB Output is correct
13 Correct 178 ms 148384 KB Output is correct
14 Correct 122 ms 146248 KB Output is correct
15 Correct 133 ms 145504 KB Output is correct
16 Correct 144 ms 145548 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 141132 KB Output is correct
2 Correct 63 ms 141260 KB Output is correct
3 Correct 63 ms 141260 KB Output is correct
4 Correct 64 ms 141164 KB Output is correct
5 Correct 66 ms 141384 KB Output is correct
6 Correct 65 ms 141232 KB Output is correct
7 Correct 64 ms 141244 KB Output is correct
8 Correct 63 ms 141516 KB Output is correct
9 Correct 65 ms 141420 KB Output is correct
10 Correct 116 ms 145984 KB Output is correct
11 Correct 123 ms 146332 KB Output is correct
12 Correct 174 ms 148136 KB Output is correct
13 Correct 174 ms 148584 KB Output is correct
14 Correct 147 ms 147360 KB Output is correct
15 Correct 148 ms 145612 KB Output is correct
16 Correct 135 ms 145468 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 141132 KB Output is correct
2 Correct 63 ms 141260 KB Output is correct
3 Correct 63 ms 141260 KB Output is correct
4 Correct 64 ms 141164 KB Output is correct
5 Correct 66 ms 141384 KB Output is correct
6 Correct 65 ms 141232 KB Output is correct
7 Correct 64 ms 141244 KB Output is correct
8 Correct 63 ms 141516 KB Output is correct
9 Correct 65 ms 141420 KB Output is correct
10 Correct 116 ms 145984 KB Output is correct
11 Correct 123 ms 146332 KB Output is correct
12 Correct 174 ms 148136 KB Output is correct
13 Correct 174 ms 148584 KB Output is correct
14 Correct 147 ms 147360 KB Output is correct
15 Correct 148 ms 145612 KB Output is correct
16 Correct 135 ms 145468 KB Output is correct
17 Correct 124 ms 146360 KB Output is correct
18 Correct 64 ms 141260 KB Output is correct
19 Correct 65 ms 141224 KB Output is correct
20 Correct 70 ms 141288 KB Output is correct
21 Correct 65 ms 141260 KB Output is correct
22 Correct 63 ms 141200 KB Output is correct
23 Correct 65 ms 141444 KB Output is correct
24 Correct 65 ms 141460 KB Output is correct
25 Correct 65 ms 141516 KB Output is correct
26 Correct 75 ms 141564 KB Output is correct
27 Correct 98 ms 146100 KB Output is correct
28 Correct 164 ms 148184 KB Output is correct
29 Correct 182 ms 148776 KB Output is correct
30 Correct 164 ms 147484 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 109 ms 145492 KB Output is correct
2 Correct 62 ms 141264 KB Output is correct
3 Correct 64 ms 141256 KB Output is correct
4 Correct 63 ms 141188 KB Output is correct
5 Correct 63 ms 141364 KB Output is correct
6 Correct 72 ms 141300 KB Output is correct
7 Correct 71 ms 141468 KB Output is correct
8 Correct 99 ms 146420 KB Output is correct
9 Correct 100 ms 146128 KB Output is correct
10 Correct 69 ms 142468 KB Output is correct
11 Correct 134 ms 145564 KB Output is correct
12 Correct 66 ms 141256 KB Output is correct
13 Correct 64 ms 141168 KB Output is correct
14 Correct 64 ms 141136 KB Output is correct
15 Correct 65 ms 141260 KB Output is correct
16 Correct 68 ms 141208 KB Output is correct
17 Correct 68 ms 141648 KB Output is correct
18 Correct 71 ms 141732 KB Output is correct
19 Correct 105 ms 146368 KB Output is correct
20 Correct 164 ms 148432 KB Output is correct
21 Correct 129 ms 146740 KB Output is correct
22 Correct 129 ms 146356 KB Output is correct
23 Correct 178 ms 148384 KB Output is correct
24 Correct 122 ms 146248 KB Output is correct
25 Correct 133 ms 145504 KB Output is correct
26 Correct 144 ms 145548 KB Output is correct
27 Correct 63 ms 141132 KB Output is correct
28 Correct 63 ms 141260 KB Output is correct
29 Correct 63 ms 141260 KB Output is correct
30 Correct 64 ms 141164 KB Output is correct
31 Correct 66 ms 141384 KB Output is correct
32 Correct 65 ms 141232 KB Output is correct
33 Correct 64 ms 141244 KB Output is correct
34 Correct 63 ms 141516 KB Output is correct
35 Correct 65 ms 141420 KB Output is correct
36 Correct 116 ms 145984 KB Output is correct
37 Correct 123 ms 146332 KB Output is correct
38 Correct 174 ms 148136 KB Output is correct
39 Correct 174 ms 148584 KB Output is correct
40 Correct 147 ms 147360 KB Output is correct
41 Correct 148 ms 145612 KB Output is correct
42 Correct 135 ms 145468 KB Output is correct
43 Correct 124 ms 146360 KB Output is correct
44 Correct 64 ms 141260 KB Output is correct
45 Correct 65 ms 141224 KB Output is correct
46 Correct 70 ms 141288 KB Output is correct
47 Correct 65 ms 141260 KB Output is correct
48 Correct 63 ms 141200 KB Output is correct
49 Correct 65 ms 141444 KB Output is correct
50 Correct 65 ms 141460 KB Output is correct
51 Correct 65 ms 141516 KB Output is correct
52 Correct 75 ms 141564 KB Output is correct
53 Correct 98 ms 146100 KB Output is correct
54 Correct 164 ms 148184 KB Output is correct
55 Correct 182 ms 148776 KB Output is correct
56 Correct 164 ms 147484 KB Output is correct
57 Correct 210 ms 148972 KB Output is correct
58 Correct 101 ms 146348 KB Output is correct
59 Correct 138 ms 146636 KB Output is correct