oj.uz

Submission #613788

# Submission time Handle Problem Language Result Execution time Memory
613788 2022-07-30T11:04:01 Z drdilyor Ancient Books (IOI17_books) C++17
50 / 100
 182 ms 44180 KB 
#include <bits/stdc++.h>
#include "books.h"
#ifdef ONPC
    #include "t_debug.cpp"
#else
    #define debug(...) 42
#endif
#define sz(a) ((int)(a).size())
using namespace std;
using ll = long long;
const int INF = 1e9;
const ll INFL = 1e18;
const int RANDOM = chrono::high_resolution_clock::now().time_since_epoch().count();
mt19937 rng(RANDOM);
template<typename T, typename U> istream& operator>>(istream& is, pair<T, U>& p) { return is >> p.first >> p.second; }
const int N = 2e5, LOGN = 17, MOD = 1e9+7;

long long minimum_walk(std::vector<int> p, int s) {
    int n = sz(p);
    while (!p.empty() && p.back() == n-1) {
        p.pop_back();
        n--;
    }
    if (!n) return 0;

    vector<vector<int>> cycles;
    vector<pair<int,int>> range;
    vector<int> done(n);
    ll distance = 0;
    for (int i = 0; i < n; i++) {
        distance += abs(p[i] - i);
        if (done[i]) continue;
        if (p[i] == i) continue;
        done[i] = true;
        cycles.push_back({i});
        for (int cur = p[i]; !done[cur]; cur = p[cur]) {
            cycles.back().push_back(cur);
            done[cur] = true;
        }
    }

    int k = sz(cycles);

    for (int i = 0; i < k; i++) {
        int l = INF, r = 0;
        for (int i : cycles[i]) {
            l = min(l, i);
            r = max(r, i);
        }
        range.emplace_back(l, r);
    }

    vector<int> enter(n), leave(n);
    for (int i = 0; i < k; i++) {
        enter[range[i].first]++;
        leave[range[i].second]++;
    }

    ll waste = 0, cur = 0;
    for (int i = 0; i < n-1; i++) {
        cur += enter[i];
        cur -= leave[i];

        if (!cur) waste += 2;
    }


    debug(cycles, range);
    debug(waste);

    return distance + waste;
}

Compilation message

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:6:24: warning: statement has no effect [-Wunused-value]
    6 |     #define debug(...) 42
      |                        ^~
books.cpp:68:5: note: in expansion of macro 'debug'
   68 |     debug(cycles, range);
      |     ^~~~~
books.cpp:6:24: warning: statement has no effect [-Wunused-value]
    6 |     #define debug(...) 42
      |                        ^~
books.cpp:69:5: note: in expansion of macro 'debug'
   69 |     debug(waste);
      |     ^~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 340 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 150 ms 24728 KB Output is correct
31 Correct 182 ms 31792 KB Output is correct
32 Correct 92 ms 14816 KB Output is correct
33 Correct 129 ms 40840 KB Output is correct
34 Correct 128 ms 40892 KB Output is correct
35 Correct 130 ms 42764 KB Output is correct
36 Correct 143 ms 40972 KB Output is correct
37 Correct 112 ms 33676 KB Output is correct
38 Correct 107 ms 32484 KB Output is correct
39 Correct 110 ms 32316 KB Output is correct
40 Correct 114 ms 31328 KB Output is correct
41 Correct 126 ms 31056 KB Output is correct
42 Correct 120 ms 31056 KB Output is correct
43 Correct 126 ms 44180 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 150 ms 24728 KB Output is correct
31 Correct 182 ms 31792 KB Output is correct
32 Correct 92 ms 14816 KB Output is correct
33 Correct 129 ms 40840 KB Output is correct
34 Correct 128 ms 40892 KB Output is correct
35 Correct 130 ms 42764 KB Output is correct
36 Correct 143 ms 40972 KB Output is correct
37 Correct 112 ms 33676 KB Output is correct
38 Correct 107 ms 32484 KB Output is correct
39 Correct 110 ms 32316 KB Output is correct
40 Correct 114 ms 31328 KB Output is correct
41 Correct 126 ms 31056 KB Output is correct
42 Correct 120 ms 31056 KB Output is correct
43 Correct 126 ms 44180 KB Output is correct
44 Incorrect 1 ms 212 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45 Halted 0 ms 0 KB -