oj.uz

Submission #736997

# Submission time Handle Problem Language Result Execution time Memory
736997 2023-05-06T12:21:19 Z Cookie Passport (JOI23_passport) C++14
100 / 100
 738 ms 89012 KB 
#include<bits/stdc++.h>
#include<fstream>
using namespace std;
 
 
#define ll long long
#define pb push_back
#define forr(i, a, b) for(int i = a; i < b; i++)
#define dorr(i, a, b) for(int i = a; i >= b; i--)
#define ld long double
#define vt vector
#include<fstream>
#define fi first
#define se second
#define pll pair<ll, ll>
#define pii pair<int, int>
const ld PI = 3.14159265359;
const int x[4] = {1, -1, 0, 0};
const int y[4] = {0, 0, 1, -1};
const ll mod = 1e9 + 7;
const int mxn = 5e5, mxm = 1e5, sq = 400;
const int base = (1 << 18);
const ll inf = 1e9;
const ld pre = 1e-6;
//cool problem!
int n;
int l[mxn + 1], r[mxn + 1], id, lson[2 * mxn + 5], rson[2 * mxn + 5];
vt<pii>adj[2 * mxn + 5];
vt<ll>d1, d2, d3;
int build(int nd, int l, int r){
    if(l == r)return(l);
    int mid = (l + r) >> 1;
    int ls = build(nd << 1, l, mid), rs = build(nd << 1 | 1, mid + 1, r);
    ++id;
    lson[id] = ls; rson[id] = rs;
    
    adj[lson[id]].emplace_back(id, 0); adj[rson[id]].emplace_back(id, 0);
    return(id);
}
void upd(int nd, int l, int r, int ql, int qr, int u){
    if(ql > r || qr < l)return;
    if(ql <= l && qr >= r){
        
        adj[nd].emplace_back(u, 1);
        return;
    }
    int mid = (l + r) >> 1;
    upd(lson[nd], l, mid, ql, qr, u); upd(rson[nd], mid + 1, r, ql, qr, u);
}
void find(vt<ll>&d){
    deque<int>dq;
    for(int i = 1; i <= n; i++){
        if(d[i] < inf)dq.pb(i);
    }
   
    while(!dq.empty()){
        int u = dq.front(); dq.pop_front();
        for(auto [v, w]: adj[u]){
            if(d[v] > d[u] + w){
                d[v] = d[u] + w;
                if(w){
                    dq.pb(v);
                }else{
                    dq.push_front(v);
                }
            }
        }
    }
}
signed main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n;
    id = n;
    int root = build(1, 1, n);
    
    forr(i, 1, n + 1){
        cin >> l[i] >> r[i];
        upd(root, 1, n, l[i], r[i], i);
    }
    d1.resize(2 * n + 5, inf); d1[1] = 0;
    find(d1); 
    d1[1] = 1;
    d2.resize(2 * n + 5, inf); d2[n] = 0;
    
    find(d2);
    d2[n] = 1;
    int q; cin >> q;
    
    d3.resize(2 * n + 5, inf);
    for(int i = 1; i <= n; i++){
        d3[i] = min(d1[i] + d2[i], inf); 
    }
    priority_queue<pll, vt<pll>, greater<pll>>pq; 
    forr(i, 1, n + 1){
        if(d3[i] < inf)pq.push({d3[i], i});
    }
    while(!pq.empty()){
        auto [dd, u] = pq.top(); pq.pop();
        if(d3[u] != dd)continue;
        for(auto [v, w]: adj[u]){
            if(d3[v] > d3[u] + w){
                d3[v] = d3[u] + w;
                pq.push({d3[v], v});
            }
        }
    }
    forr(i, 0, q){
        int x; cin >> x;
        if(d3[x] >= 1e9)cout << -1 << "\n";
        else cout << d3[x] - 1 << "\n";
    }
    
    return(0);
}

Compilation message

passport.cpp: In function 'void find(std::vector<long long int>&)':
passport.cpp:58:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   58 |         for(auto [v, w]: adj[u]){
      |                  ^
passport.cpp: In function 'int main()':
passport.cpp:98:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   98 |         auto [dd, u] = pq.top(); pq.pop();
      |              ^
passport.cpp:100:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
  100 |         for(auto [v, w]: adj[u]){
      |                  ^

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 12 ms 23832 KB Output is correct
3 Correct 14 ms 23764 KB Output is correct
4 Correct 623 ms 81292 KB Output is correct
5 Correct 274 ms 61264 KB Output is correct
6 Correct 210 ms 56248 KB Output is correct
7 Correct 150 ms 53952 KB Output is correct
8 Correct 97 ms 55656 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23776 KB Output is correct
2 Correct 12 ms 23764 KB Output is correct
3 Correct 12 ms 23764 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 12 ms 23764 KB Output is correct
6 Correct 13 ms 23760 KB Output is correct
7 Correct 12 ms 23764 KB Output is correct
8 Correct 12 ms 23764 KB Output is correct
9 Correct 12 ms 23772 KB Output is correct
10 Correct 11 ms 23764 KB Output is correct
11 Correct 13 ms 23892 KB Output is correct
12 Correct 12 ms 23892 KB Output is correct
13 Correct 13 ms 23796 KB Output is correct
14 Correct 12 ms 23892 KB Output is correct
15 Correct 12 ms 23892 KB Output is correct

Subtask #3
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23776 KB Output is correct
2 Correct 12 ms 23764 KB Output is correct
3 Correct 12 ms 23764 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 12 ms 23764 KB Output is correct
6 Correct 13 ms 23760 KB Output is correct
7 Correct 12 ms 23764 KB Output is correct
8 Correct 12 ms 23764 KB Output is correct
9 Correct 12 ms 23772 KB Output is correct
10 Correct 11 ms 23764 KB Output is correct
11 Correct 13 ms 23892 KB Output is correct
12 Correct 12 ms 23892 KB Output is correct
13 Correct 13 ms 23796 KB Output is correct
14 Correct 12 ms 23892 KB Output is correct
15 Correct 12 ms 23892 KB Output is correct
16 Correct 15 ms 24404 KB Output is correct
17 Correct 18 ms 24276 KB Output is correct
18 Correct 17 ms 24532 KB Output is correct
19 Correct 15 ms 24556 KB Output is correct
20 Correct 13 ms 24240 KB Output is correct
21 Correct 13 ms 24276 KB Output is correct
22 Correct 14 ms 24084 KB Output is correct
23 Correct 15 ms 24344 KB Output is correct
24 Correct 13 ms 24412 KB Output is correct

Subtask #4
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23776 KB Output is correct
2 Correct 12 ms 23764 KB Output is correct
3 Correct 12 ms 23764 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 12 ms 23764 KB Output is correct
6 Correct 13 ms 23760 KB Output is correct
7 Correct 12 ms 23764 KB Output is correct
8 Correct 12 ms 23764 KB Output is correct
9 Correct 12 ms 23772 KB Output is correct
10 Correct 11 ms 23764 KB Output is correct
11 Correct 13 ms 23892 KB Output is correct
12 Correct 12 ms 23892 KB Output is correct
13 Correct 13 ms 23796 KB Output is correct
14 Correct 12 ms 23892 KB Output is correct
15 Correct 12 ms 23892 KB Output is correct
16 Correct 15 ms 24404 KB Output is correct
17 Correct 18 ms 24276 KB Output is correct
18 Correct 17 ms 24532 KB Output is correct
19 Correct 15 ms 24556 KB Output is correct
20 Correct 13 ms 24240 KB Output is correct
21 Correct 13 ms 24276 KB Output is correct
22 Correct 14 ms 24084 KB Output is correct
23 Correct 15 ms 24344 KB Output is correct
24 Correct 13 ms 24412 KB Output is correct
25 Correct 12 ms 23764 KB Output is correct
26 Correct 11 ms 23764 KB Output is correct
27 Correct 17 ms 24432 KB Output is correct
28 Correct 17 ms 24276 KB Output is correct
29 Correct 16 ms 24212 KB Output is correct
30 Correct 14 ms 24276 KB Output is correct
31 Correct 18 ms 24276 KB Output is correct

Subtask #5
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 12 ms 23832 KB Output is correct
3 Correct 14 ms 23764 KB Output is correct
4 Correct 623 ms 81292 KB Output is correct
5 Correct 274 ms 61264 KB Output is correct
6 Correct 210 ms 56248 KB Output is correct
7 Correct 150 ms 53952 KB Output is correct
8 Correct 97 ms 55656 KB Output is correct
9 Correct 15 ms 23776 KB Output is correct
10 Correct 12 ms 23764 KB Output is correct
11 Correct 12 ms 23764 KB Output is correct
12 Correct 12 ms 23764 KB Output is correct
13 Correct 12 ms 23764 KB Output is correct
14 Correct 13 ms 23760 KB Output is correct
15 Correct 12 ms 23764 KB Output is correct
16 Correct 12 ms 23764 KB Output is correct
17 Correct 12 ms 23772 KB Output is correct
18 Correct 11 ms 23764 KB Output is correct
19 Correct 13 ms 23892 KB Output is correct
20 Correct 12 ms 23892 KB Output is correct
21 Correct 13 ms 23796 KB Output is correct
22 Correct 12 ms 23892 KB Output is correct
23 Correct 12 ms 23892 KB Output is correct
24 Correct 15 ms 24404 KB Output is correct
25 Correct 18 ms 24276 KB Output is correct
26 Correct 17 ms 24532 KB Output is correct
27 Correct 15 ms 24556 KB Output is correct
28 Correct 13 ms 24240 KB Output is correct
29 Correct 13 ms 24276 KB Output is correct
30 Correct 14 ms 24084 KB Output is correct
31 Correct 15 ms 24344 KB Output is correct
32 Correct 13 ms 24412 KB Output is correct
33 Correct 12 ms 23764 KB Output is correct
34 Correct 11 ms 23764 KB Output is correct
35 Correct 17 ms 24432 KB Output is correct
36 Correct 17 ms 24276 KB Output is correct
37 Correct 16 ms 24212 KB Output is correct
38 Correct 14 ms 24276 KB Output is correct
39 Correct 18 ms 24276 KB Output is correct
40 Correct 738 ms 85532 KB Output is correct
41 Correct 323 ms 61760 KB Output is correct
42 Correct 416 ms 88844 KB Output is correct
43 Correct 423 ms 89012 KB Output is correct
44 Correct 216 ms 56676 KB Output is correct
45 Correct 228 ms 62408 KB Output is correct
46 Correct 111 ms 38488 KB Output is correct
47 Correct 302 ms 65060 KB Output is correct
48 Correct 301 ms 70064 KB Output is correct