oj.uz

Submission #1041183

# Submission time Handle Problem Language Result Execution time Memory
1041183 2024-08-01T17:08:50 Z aymanrs Escape Route 2 (JOI24_escape2) C++17
54 / 100
 3000 ms 211580 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
const int L = 17;
using namespace std;
void solve(){
    int n, t, r;cin >> n >> t;
    set<pair<int, int>> s[n-1];
    vector<pair<int, int>> pp[n-1];
    for(int i = 0;i < n-1;i++){
        cin >> r;
        while(r--){
            int a, b;cin >> a >> b;            
            if(s[i].empty() || s[i].rbegin()->first<a || s[i].lower_bound({a,-1})->second > b){
                auto p = s[i].insert({a,b}).first;
                while(p != s[i].begin() && prev(p)->second >= b){
                    s[i].erase(prev(p));
                }
                if(p != prev(s[i].end()) && next(p)->first == p->first){
                    s[i].erase(next(p));
                }
            }
        }
        for(auto [a,b] : s[i]) pp[i].emplace_back(a,b);
    }
    vector<long long> bl[L][n-1]; vector<int> blt[L][n-1];
    for(int l = 0;l < L;l++){
        for(int i = 0;i < n-1;i++){
            bl[l][i].resize(s[i].size());
            blt[l][i].resize(s[i].size());
        }
    }
    vector<int> nxt[n-1];
    for(int i = 0;i < n-1;i++){
        for(int j = 0;j < pp[i].size();j++){
            bl[0][i][j] = pp[i][j].second-pp[i][j].first;
            blt[0][i][j] = j;
            if(i==n-2) continue;
            if(pp[i+1].back().first < pp[i][j].second) nxt[i].push_back(0);
            else nxt[i].push_back(lower_bound(pp[i+1].begin(), pp[i+1].end(), pair<int,int>{pp[i][j].second, -1})-pp[i+1].begin());
        }
    }
    for(int l = 1;l < L;l++){
        for(int i = 0;i+(1<<l) < n;i++){
            for(int j = 0;j < pp[i].size();j++){
                int na = pp[i+(1<<l-1)][nxt[i+(1<<l-1)-1][blt[l-1][i][j]]].first;
                int nb = pp[i+(1<<l-1)-1][blt[l-1][i][j]].second;
                if(na < nb){
                    bl[l][i][j] = bl[l-1][i][j] + t+na-nb + bl[l-1][i+(1<<l-1)][0];
                    blt[l][i][j] = blt[l-1][i+(1<<l-1)][0];
                } else {
                    bl[l][i][j] = bl[l-1][i][j] + na-nb + bl[l-1][i+(1<<l-1)][nxt[i+(1<<l-1)-1][blt[l-1][i][j]]];
                    blt[l][i][j] = blt[l-1][i+(1<<l-1)][nxt[i+(1<<l-1)-1][blt[l-1][i][j]]];
                }
            }
        }
    }
    int q;cin >> q;
    while(q--){
        int l,r;cin >> l >> r;l--;r--;
        long long aans = LONG_LONG_MAX;
        int ol = l;
        for(int j = 0;j < pp[ol].size();j++){
            l = ol;
            long long ans = pp[l][j].second-pp[l][j].first;
            int k = j;l++;
            for(int i = L-1;i >= 0;i--){
                if(l+(1<<i) > r) continue;
                int na = pp[l][nxt[l-1][k]].first;
                int nb = pp[l-1][k].second;
                if(na < nb){
                    ans += t+na-nb+bl[i][l][0];
                    k = blt[i][l][0];
                } else {
                    ans += na-nb+bl[i][l][nxt[l-1][k]];
                    k = blt[i][l][nxt[l-1][k]];
                }
                l+=1<<i;
            }
            aans = min(aans, ans);
        }
        cout << aans << '\n';
    }
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    solve();
}

Compilation message

Main.cpp: In function 'void solve()':
Main.cpp:35:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |         for(int j = 0;j < pp[i].size();j++){
      |                       ~~^~~~~~~~~~~~~~
Main.cpp:45:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |             for(int j = 0;j < pp[i].size();j++){
      |                           ~~^~~~~~~~~~~~~~
Main.cpp:46:36: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   46 |                 int na = pp[i+(1<<l-1)][nxt[i+(1<<l-1)-1][blt[l-1][i][j]]].first;
      |                                   ~^~
Main.cpp:46:52: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   46 |                 int na = pp[i+(1<<l-1)][nxt[i+(1<<l-1)-1][blt[l-1][i][j]]].first;
      |                                                   ~^~
Main.cpp:47:36: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   47 |                 int nb = pp[i+(1<<l-1)-1][blt[l-1][i][j]].second;
      |                                   ~^~
Main.cpp:49:76: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   49 |                     bl[l][i][j] = bl[l-1][i][j] + t+na-nb + bl[l-1][i+(1<<l-1)][0];
      |                                                                           ~^~
Main.cpp:50:52: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   50 |                     blt[l][i][j] = blt[l-1][i+(1<<l-1)][0];
      |                                                   ~^~
Main.cpp:52:74: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   52 |                     bl[l][i][j] = bl[l-1][i][j] + na-nb + bl[l-1][i+(1<<l-1)][nxt[i+(1<<l-1)-1][blt[l-1][i][j]]];
      |                                                                         ~^~
Main.cpp:52:90: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   52 |                     bl[l][i][j] = bl[l-1][i][j] + na-nb + bl[l-1][i+(1<<l-1)][nxt[i+(1<<l-1)-1][blt[l-1][i][j]]];
      |                                                                                         ~^~
Main.cpp:53:52: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   53 |                     blt[l][i][j] = blt[l-1][i+(1<<l-1)][nxt[i+(1<<l-1)-1][blt[l-1][i][j]]];
      |                                                   ~^~
Main.cpp:53:68: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   53 |                     blt[l][i][j] = blt[l-1][i+(1<<l-1)][nxt[i+(1<<l-1)-1][blt[l-1][i][j]]];
      |                                                                   ~^~
Main.cpp:63:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |         for(int j = 0;j < pp[ol].size();j++){
      |                       ~~^~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 32 ms 3212 KB Output is correct
3 Correct 51 ms 6212 KB Output is correct
4 Correct 69 ms 8272 KB Output is correct
5 Correct 55 ms 7448 KB Output is correct
6 Correct 72 ms 8444 KB Output is correct
7 Correct 65 ms 8528 KB Output is correct
8 Correct 52 ms 6228 KB Output is correct
9 Correct 78 ms 8272 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 32 ms 3212 KB Output is correct
3 Correct 51 ms 6212 KB Output is correct
4 Correct 69 ms 8272 KB Output is correct
5 Correct 55 ms 7448 KB Output is correct
6 Correct 72 ms 8444 KB Output is correct
7 Correct 65 ms 8528 KB Output is correct
8 Correct 52 ms 6228 KB Output is correct
9 Correct 78 ms 8272 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 78 ms 4832 KB Output is correct
12 Correct 81 ms 4688 KB Output is correct
13 Correct 77 ms 4688 KB Output is correct
14 Correct 75 ms 4692 KB Output is correct
15 Correct 78 ms 5564 KB Output is correct
16 Correct 36 ms 3420 KB Output is correct
17 Correct 74 ms 7072 KB Output is correct
18 Correct 92 ms 5712 KB Output is correct
19 Correct 73 ms 7000 KB Output is correct
20 Correct 79 ms 5548 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 32 ms 3212 KB Output is correct
3 Correct 51 ms 6212 KB Output is correct
4 Correct 69 ms 8272 KB Output is correct
5 Correct 55 ms 7448 KB Output is correct
6 Correct 72 ms 8444 KB Output is correct
7 Correct 65 ms 8528 KB Output is correct
8 Correct 52 ms 6228 KB Output is correct
9 Correct 78 ms 8272 KB Output is correct
10 Correct 314 ms 166444 KB Output is correct
11 Correct 464 ms 211540 KB Output is correct
12 Correct 475 ms 211580 KB Output is correct
13 Correct 372 ms 210236 KB Output is correct
14 Correct 448 ms 211284 KB Output is correct
15 Correct 423 ms 211536 KB Output is correct
16 Correct 346 ms 166584 KB Output is correct
17 Correct 399 ms 211280 KB Output is correct
18 Correct 252 ms 187748 KB Output is correct
19 Correct 238 ms 187444 KB Output is correct
20 Correct 254 ms 187728 KB Output is correct
21 Correct 227 ms 187732 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 32 ms 3212 KB Output is correct
3 Correct 51 ms 6212 KB Output is correct
4 Correct 69 ms 8272 KB Output is correct
5 Correct 55 ms 7448 KB Output is correct
6 Correct 72 ms 8444 KB Output is correct
7 Correct 65 ms 8528 KB Output is correct
8 Correct 52 ms 6228 KB Output is correct
9 Correct 78 ms 8272 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 78 ms 4832 KB Output is correct
12 Correct 81 ms 4688 KB Output is correct
13 Correct 77 ms 4688 KB Output is correct
14 Correct 75 ms 4692 KB Output is correct
15 Correct 78 ms 5564 KB Output is correct
16 Correct 36 ms 3420 KB Output is correct
17 Correct 74 ms 7072 KB Output is correct
18 Correct 92 ms 5712 KB Output is correct
19 Correct 73 ms 7000 KB Output is correct
20 Correct 79 ms 5548 KB Output is correct
21 Correct 314 ms 166444 KB Output is correct
22 Correct 464 ms 211540 KB Output is correct
23 Correct 475 ms 211580 KB Output is correct
24 Correct 372 ms 210236 KB Output is correct
25 Correct 448 ms 211284 KB Output is correct
26 Correct 423 ms 211536 KB Output is correct
27 Correct 346 ms 166584 KB Output is correct
28 Correct 399 ms 211280 KB Output is correct
29 Correct 252 ms 187748 KB Output is correct
30 Correct 238 ms 187444 KB Output is correct
31 Correct 254 ms 187728 KB Output is correct
32 Correct 227 ms 187732 KB Output is correct
33 Correct 329 ms 56152 KB Output is correct
34 Correct 361 ms 55960 KB Output is correct
35 Correct 280 ms 55124 KB Output is correct
36 Correct 266 ms 55024 KB Output is correct
37 Correct 236 ms 74324 KB Output is correct
38 Correct 294 ms 112976 KB Output is correct
39 Correct 360 ms 144212 KB Output is correct
40 Correct 254 ms 55676 KB Output is correct
41 Correct 281 ms 107000 KB Output is correct
42 Correct 374 ms 143188 KB Output is correct
43 Correct 253 ms 74320 KB Output is correct
44 Correct 291 ms 76116 KB Output is correct
45 Correct 207 ms 127228 KB Output is correct
46 Correct 168 ms 70228 KB Output is correct

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 469 ms 25644 KB Output is correct
4 Correct 478 ms 25508 KB Output is correct
5 Correct 491 ms 25668 KB Output is correct
6 Correct 462 ms 25428 KB Output is correct
7 Correct 466 ms 25428 KB Output is correct
8 Correct 248 ms 13708 KB Output is correct
9 Correct 431 ms 25952 KB Output is correct
10 Execution timed out 3031 ms 12176 KB Time limit exceeded
11 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 32 ms 3212 KB Output is correct
3 Correct 51 ms 6212 KB Output is correct
4 Correct 69 ms 8272 KB Output is correct
5 Correct 55 ms 7448 KB Output is correct
6 Correct 72 ms 8444 KB Output is correct
7 Correct 65 ms 8528 KB Output is correct
8 Correct 52 ms 6228 KB Output is correct
9 Correct 78 ms 8272 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 78 ms 4832 KB Output is correct
12 Correct 81 ms 4688 KB Output is correct
13 Correct 77 ms 4688 KB Output is correct
14 Correct 75 ms 4692 KB Output is correct
15 Correct 78 ms 5564 KB Output is correct
16 Correct 36 ms 3420 KB Output is correct
17 Correct 74 ms 7072 KB Output is correct
18 Correct 92 ms 5712 KB Output is correct
19 Correct 73 ms 7000 KB Output is correct
20 Correct 79 ms 5548 KB Output is correct
21 Correct 314 ms 166444 KB Output is correct
22 Correct 464 ms 211540 KB Output is correct
23 Correct 475 ms 211580 KB Output is correct
24 Correct 372 ms 210236 KB Output is correct
25 Correct 448 ms 211284 KB Output is correct
26 Correct 423 ms 211536 KB Output is correct
27 Correct 346 ms 166584 KB Output is correct
28 Correct 399 ms 211280 KB Output is correct
29 Correct 252 ms 187748 KB Output is correct
30 Correct 238 ms 187444 KB Output is correct
31 Correct 254 ms 187728 KB Output is correct
32 Correct 227 ms 187732 KB Output is correct
33 Correct 329 ms 56152 KB Output is correct
34 Correct 361 ms 55960 KB Output is correct
35 Correct 280 ms 55124 KB Output is correct
36 Correct 266 ms 55024 KB Output is correct
37 Correct 236 ms 74324 KB Output is correct
38 Correct 294 ms 112976 KB Output is correct
39 Correct 360 ms 144212 KB Output is correct
40 Correct 254 ms 55676 KB Output is correct
41 Correct 281 ms 107000 KB Output is correct
42 Correct 374 ms 143188 KB Output is correct
43 Correct 253 ms 74320 KB Output is correct
44 Correct 291 ms 76116 KB Output is correct
45 Correct 207 ms 127228 KB Output is correct
46 Correct 168 ms 70228 KB Output is correct
47 Correct 0 ms 344 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 469 ms 25644 KB Output is correct
50 Correct 478 ms 25508 KB Output is correct
51 Correct 491 ms 25668 KB Output is correct
52 Correct 462 ms 25428 KB Output is correct
53 Correct 466 ms 25428 KB Output is correct
54 Correct 248 ms 13708 KB Output is correct
55 Correct 431 ms 25952 KB Output is correct
56 Execution timed out 3031 ms 12176 KB Time limit exceeded
57 Halted 0 ms 0 KB -