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답안 #1041181

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1041181 2024-08-01T17:07:54 Z aymanrs Escape Route 2 (JOI24_escape2) C++17
54 / 100
 3000 ms 216132 KB 
#include<bits/stdc++.h>
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:33:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |         for(int j = 0;j < pp[i].size();j++){
      |                       ~~^~~~~~~~~~~~~~
Main.cpp:43:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |             for(int j = 0;j < pp[i].size();j++){
      |                           ~~^~~~~~~~~~~~~~
Main.cpp:44:36: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   44 |                 int na = pp[i+(1<<l-1)][nxt[i+(1<<l-1)-1][blt[l-1][i][j]]].first;
      |                                   ~^~
Main.cpp:44:52: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   44 |                 int na = pp[i+(1<<l-1)][nxt[i+(1<<l-1)-1][blt[l-1][i][j]]].first;
      |                                                   ~^~
Main.cpp:45:36: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   45 |                 int nb = pp[i+(1<<l-1)-1][blt[l-1][i][j]].second;
      |                                   ~^~
Main.cpp:47:76: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   47 |                     bl[l][i][j] = bl[l-1][i][j] + t+na-nb + bl[l-1][i+(1<<l-1)][0];
      |                                                                           ~^~
Main.cpp:48:52: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   48 |                     blt[l][i][j] = blt[l-1][i+(1<<l-1)][0];
      |                                                   ~^~
Main.cpp:50:74: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   50 |                     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:50:90: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   50 |                     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:51:52: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   51 |                     blt[l][i][j] = blt[l-1][i+(1<<l-1)][nxt[i+(1<<l-1)-1][blt[l-1][i][j]]];
      |                                                   ~^~
Main.cpp:51:68: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   51 |                     blt[l][i][j] = blt[l-1][i+(1<<l-1)][nxt[i+(1<<l-1)-1][blt[l-1][i][j]]];
      |                                                                   ~^~
Main.cpp:61:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |         for(int j = 0;j < pp[ol].size();j++){
      |                       ~~^~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 32 ms 4436 KB Output is correct
3 Correct 64 ms 7912 KB Output is correct
4 Correct 73 ms 10704 KB Output is correct
5 Correct 57 ms 9556 KB Output is correct
6 Correct 75 ms 10708 KB Output is correct
7 Correct 74 ms 10836 KB Output is correct
8 Correct 64 ms 7988 KB Output is correct
9 Correct 82 ms 10576 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 32 ms 4436 KB Output is correct
3 Correct 64 ms 7912 KB Output is correct
4 Correct 73 ms 10704 KB Output is correct
5 Correct 57 ms 9556 KB Output is correct
6 Correct 75 ms 10708 KB Output is correct
7 Correct 74 ms 10836 KB Output is correct
8 Correct 64 ms 7988 KB Output is correct
9 Correct 82 ms 10576 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 87 ms 7088 KB Output is correct
12 Correct 94 ms 7108 KB Output is correct
13 Correct 88 ms 7168 KB Output is correct
14 Correct 87 ms 6992 KB Output is correct
15 Correct 87 ms 8272 KB Output is correct
16 Correct 35 ms 4456 KB Output is correct
17 Correct 94 ms 9556 KB Output is correct
18 Correct 93 ms 8044 KB Output is correct
19 Correct 84 ms 9556 KB Output is correct
20 Correct 87 ms 7796 KB Output is correct

Subtask #3
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 32 ms 4436 KB Output is correct
3 Correct 64 ms 7912 KB Output is correct
4 Correct 73 ms 10704 KB Output is correct
5 Correct 57 ms 9556 KB Output is correct
6 Correct 75 ms 10708 KB Output is correct
7 Correct 74 ms 10836 KB Output is correct
8 Correct 64 ms 7988 KB Output is correct
9 Correct 82 ms 10576 KB Output is correct
10 Correct 328 ms 169748 KB Output is correct
11 Correct 475 ms 215944 KB Output is correct
12 Correct 462 ms 216076 KB Output is correct
13 Correct 366 ms 214096 KB Output is correct
14 Correct 467 ms 215888 KB Output is correct
15 Correct 421 ms 216132 KB Output is correct
16 Correct 290 ms 169812 KB Output is correct
17 Correct 440 ms 215892 KB Output is correct
18 Correct 251 ms 190292 KB Output is correct
19 Correct 234 ms 189828 KB Output is correct
20 Correct 245 ms 190164 KB Output is correct
21 Correct 240 ms 190292 KB Output is correct

Subtask #4
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 32 ms 4436 KB Output is correct
3 Correct 64 ms 7912 KB Output is correct
4 Correct 73 ms 10704 KB Output is correct
5 Correct 57 ms 9556 KB Output is correct
6 Correct 75 ms 10708 KB Output is correct
7 Correct 74 ms 10836 KB Output is correct
8 Correct 64 ms 7988 KB Output is correct
9 Correct 82 ms 10576 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 87 ms 7088 KB Output is correct
12 Correct 94 ms 7108 KB Output is correct
13 Correct 88 ms 7168 KB Output is correct
14 Correct 87 ms 6992 KB Output is correct
15 Correct 87 ms 8272 KB Output is correct
16 Correct 35 ms 4456 KB Output is correct
17 Correct 94 ms 9556 KB Output is correct
18 Correct 93 ms 8044 KB Output is correct
19 Correct 84 ms 9556 KB Output is correct
20 Correct 87 ms 7796 KB Output is correct
21 Correct 328 ms 169748 KB Output is correct
22 Correct 475 ms 215944 KB Output is correct
23 Correct 462 ms 216076 KB Output is correct
24 Correct 366 ms 214096 KB Output is correct
25 Correct 467 ms 215888 KB Output is correct
26 Correct 421 ms 216132 KB Output is correct
27 Correct 290 ms 169812 KB Output is correct
28 Correct 440 ms 215892 KB Output is correct
29 Correct 251 ms 190292 KB Output is correct
30 Correct 234 ms 189828 KB Output is correct
31 Correct 245 ms 190164 KB Output is correct
32 Correct 240 ms 190292 KB Output is correct
33 Correct 382 ms 61264 KB Output is correct
34 Correct 404 ms 61168 KB Output is correct
35 Correct 377 ms 60088 KB Output is correct
36 Correct 337 ms 60096 KB Output is correct
37 Correct 295 ms 79572 KB Output is correct
38 Correct 312 ms 117056 KB Output is correct
39 Correct 374 ms 149652 KB Output is correct
40 Correct 324 ms 60244 KB Output is correct
41 Correct 296 ms 111476 KB Output is correct
42 Correct 384 ms 148648 KB Output is correct
43 Correct 270 ms 78932 KB Output is correct
44 Correct 285 ms 81488 KB Output is correct
45 Correct 213 ms 130124 KB Output is correct
46 Correct 165 ms 72944 KB Output is correct

Subtask #5
0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 550 ms 28068 KB Output is correct
4 Correct 552 ms 27988 KB Output is correct
5 Correct 539 ms 27852 KB Output is correct
6 Correct 545 ms 27984 KB Output is correct
7 Correct 550 ms 28284 KB Output is correct
8 Correct 297 ms 15952 KB Output is correct
9 Correct 506 ms 28548 KB Output is correct
10 Execution timed out 3037 ms 13620 KB Time limit exceeded
11 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 32 ms 4436 KB Output is correct
3 Correct 64 ms 7912 KB Output is correct
4 Correct 73 ms 10704 KB Output is correct
5 Correct 57 ms 9556 KB Output is correct
6 Correct 75 ms 10708 KB Output is correct
7 Correct 74 ms 10836 KB Output is correct
8 Correct 64 ms 7988 KB Output is correct
9 Correct 82 ms 10576 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 87 ms 7088 KB Output is correct
12 Correct 94 ms 7108 KB Output is correct
13 Correct 88 ms 7168 KB Output is correct
14 Correct 87 ms 6992 KB Output is correct
15 Correct 87 ms 8272 KB Output is correct
16 Correct 35 ms 4456 KB Output is correct
17 Correct 94 ms 9556 KB Output is correct
18 Correct 93 ms 8044 KB Output is correct
19 Correct 84 ms 9556 KB Output is correct
20 Correct 87 ms 7796 KB Output is correct
21 Correct 328 ms 169748 KB Output is correct
22 Correct 475 ms 215944 KB Output is correct
23 Correct 462 ms 216076 KB Output is correct
24 Correct 366 ms 214096 KB Output is correct
25 Correct 467 ms 215888 KB Output is correct
26 Correct 421 ms 216132 KB Output is correct
27 Correct 290 ms 169812 KB Output is correct
28 Correct 440 ms 215892 KB Output is correct
29 Correct 251 ms 190292 KB Output is correct
30 Correct 234 ms 189828 KB Output is correct
31 Correct 245 ms 190164 KB Output is correct
32 Correct 240 ms 190292 KB Output is correct
33 Correct 382 ms 61264 KB Output is correct
34 Correct 404 ms 61168 KB Output is correct
35 Correct 377 ms 60088 KB Output is correct
36 Correct 337 ms 60096 KB Output is correct
37 Correct 295 ms 79572 KB Output is correct
38 Correct 312 ms 117056 KB Output is correct
39 Correct 374 ms 149652 KB Output is correct
40 Correct 324 ms 60244 KB Output is correct
41 Correct 296 ms 111476 KB Output is correct
42 Correct 384 ms 148648 KB Output is correct
43 Correct 270 ms 78932 KB Output is correct
44 Correct 285 ms 81488 KB Output is correct
45 Correct 213 ms 130124 KB Output is correct
46 Correct 165 ms 72944 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 550 ms 28068 KB Output is correct
50 Correct 552 ms 27988 KB Output is correct
51 Correct 539 ms 27852 KB Output is correct
52 Correct 545 ms 27984 KB Output is correct
53 Correct 550 ms 28284 KB Output is correct
54 Correct 297 ms 15952 KB Output is correct
55 Correct 506 ms 28548 KB Output is correct
56 Execution timed out 3037 ms 13620 KB Time limit exceeded
57 Halted 0 ms 0 KB -