oj.uz

Submission #795645

# Submission time Handle Problem Language Result Execution time Memory
795645 2023-07-27T12:07:56 Z SlavicG Minerals (JOI19_minerals) C++17
75 / 100
 876 ms 2392 KB 
#include <bits/stdc++.h>
#include "minerals.h"
using namespace std;
 
mt19937 rng(69);
void Solve(int n) {
    vector<int> p1, p2;
    int ans = 0, prevans = -1;
    vector<int> bulanea(2 * n);
    iota(bulanea.begin(), bulanea.end(), 1);
    shuffle(bulanea.begin(), bulanea.end(), rng);
    for(int i: bulanea) {
        ans = Query(i);
        if(ans == prevans) {
            p2.push_back(i);
        } else {
            p1.push_back(i);
        }
        prevans = ans;
    }
    assert(p1.size() == n && p2.size() == n);
    vector<int> pr(n, 0);
    vector<bool> bagat(n, 1);
    vector<int> bit_order;
    vector<int> best_order; int mn = INT_MAX;
    for(int bit = 0; (1 << bit) < n; ++bit) {
        bit_order.push_back(bit);
    }
    int f = 0;
    while(f++ < 550) {
        vector<bool> bruh(n, true);
        int cost = 0;
        for(int b: bit_order) {
            for(int i = 0; i < n; ++i) {
                if(i >> b & 1) {
                    if(!bruh[i]) ++cost;
                    bruh[i] = 1;
                } else {
                    if(bruh[i]) ++cost;
                    bruh[i] = 0;
                }
            }
        }
        if(cost < mn) {
            mn = cost;
            best_order = bit_order;
        }
        shuffle(bit_order.begin(), bit_order.end(), rng);
    }
    iota(best_order.begin(), best_order.end(), 0);
    for(int bit: best_order) {
        int cntt = 0;
        for(int i = 0; i < n; ++i) {
            if(i >> bit & 1) {
                ++cntt;
                if(!bagat[i]) prevans = Query(p1[i]);
                bagat[i] = 1;
            } else {
                if(bagat[i]) prevans = Query(p1[i]);
                bagat[i] = 0;
            }
        }
        for(int i = 0; i < n && cntt; ++i) {
            if(pr[i] + (1 << bit) >= n) continue;
            int ans = Query(p2[i]);
            if(ans == prevans) {
                pr[i] += (1 << bit);
                --cntt;
            }
            prevans = ans;
        }
    }
    for(int i = 0; i < n; ++i) {
        Answer(p2[i], p1[pr[i]]);
    }
}
/*
4
1 5
2 6
3 4
7 8
*/

Compilation message

In file included from /usr/include/c++/10/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from minerals.cpp:1:
minerals.cpp: In function 'void Solve(int)':
minerals.cpp:21:22: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   21 |     assert(p1.size() == n && p2.size() == n);
      |            ~~~~~~~~~~^~~~
minerals.cpp:21:40: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   21 |     assert(p1.size() == n && p2.size() == n);
      |                              ~~~~~~~~~~^~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 336 KB Output is correct
2 Correct 32 ms 380 KB Output is correct
3 Correct 68 ms 480 KB Output is correct
4 Correct 142 ms 644 KB Output is correct
5 Correct 279 ms 900 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 14 ms 336 KB Output is correct
6 Correct 32 ms 380 KB Output is correct
7 Correct 68 ms 480 KB Output is correct
8 Correct 142 ms 644 KB Output is correct
9 Correct 279 ms 900 KB Output is correct
10 Correct 14 ms 336 KB Output is correct
11 Correct 188 ms 768 KB Output is correct
12 Correct 286 ms 956 KB Output is correct
13 Correct 286 ms 956 KB Output is correct
14 Correct 284 ms 900 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 14 ms 336 KB Output is correct
6 Correct 32 ms 380 KB Output is correct
7 Correct 68 ms 480 KB Output is correct
8 Correct 142 ms 644 KB Output is correct
9 Correct 279 ms 900 KB Output is correct
10 Correct 14 ms 336 KB Output is correct
11 Correct 188 ms 768 KB Output is correct
12 Correct 286 ms 956 KB Output is correct
13 Correct 286 ms 956 KB Output is correct
14 Correct 284 ms 900 KB Output is correct
15 Correct 830 ms 2340 KB Output is correct
16 Correct 822 ms 2340 KB Output is correct
17 Correct 826 ms 2344 KB Output is correct
18 Correct 819 ms 2188 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 14 ms 336 KB Output is correct
6 Correct 32 ms 380 KB Output is correct
7 Correct 68 ms 480 KB Output is correct
8 Correct 142 ms 644 KB Output is correct
9 Correct 279 ms 900 KB Output is correct
10 Correct 14 ms 336 KB Output is correct
11 Correct 188 ms 768 KB Output is correct
12 Correct 286 ms 956 KB Output is correct
13 Correct 286 ms 956 KB Output is correct
14 Correct 284 ms 900 KB Output is correct
15 Correct 830 ms 2340 KB Output is correct
16 Correct 822 ms 2340 KB Output is correct
17 Correct 826 ms 2344 KB Output is correct
18 Correct 819 ms 2188 KB Output is correct
19 Correct 846 ms 2384 KB Output is correct
20 Correct 835 ms 2392 KB Output is correct
21 Correct 854 ms 2384 KB Output is correct
22 Correct 830 ms 2232 KB Output is correct

Subtask #6
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 14 ms 336 KB Output is correct
6 Correct 32 ms 380 KB Output is correct
7 Correct 68 ms 480 KB Output is correct
8 Correct 142 ms 644 KB Output is correct
9 Correct 279 ms 900 KB Output is correct
10 Correct 14 ms 336 KB Output is correct
11 Correct 188 ms 768 KB Output is correct
12 Correct 286 ms 956 KB Output is correct
13 Correct 286 ms 956 KB Output is correct
14 Correct 284 ms 900 KB Output is correct
15 Correct 830 ms 2340 KB Output is correct
16 Correct 822 ms 2340 KB Output is correct
17 Correct 826 ms 2344 KB Output is correct
18 Correct 819 ms 2188 KB Output is correct
19 Correct 846 ms 2384 KB Output is correct
20 Correct 835 ms 2392 KB Output is correct
21 Correct 854 ms 2384 KB Output is correct
22 Correct 830 ms 2232 KB Output is correct
23 Incorrect 876 ms 2172 KB Wrong Answer [2]
24 Halted 0 ms 0 KB -

Subtask #7
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 14 ms 336 KB Output is correct
6 Correct 32 ms 380 KB Output is correct
7 Correct 68 ms 480 KB Output is correct
8 Correct 142 ms 644 KB Output is correct
9 Correct 279 ms 900 KB Output is correct
10 Correct 14 ms 336 KB Output is correct
11 Correct 188 ms 768 KB Output is correct
12 Correct 286 ms 956 KB Output is correct
13 Correct 286 ms 956 KB Output is correct
14 Correct 284 ms 900 KB Output is correct
15 Correct 830 ms 2340 KB Output is correct
16 Correct 822 ms 2340 KB Output is correct
17 Correct 826 ms 2344 KB Output is correct
18 Correct 819 ms 2188 KB Output is correct
19 Correct 846 ms 2384 KB Output is correct
20 Correct 835 ms 2392 KB Output is correct
21 Correct 854 ms 2384 KB Output is correct
22 Correct 830 ms 2232 KB Output is correct
23 Incorrect 876 ms 2172 KB Wrong Answer [2]
24 Halted 0 ms 0 KB -

Subtask #8
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 14 ms 336 KB Output is correct
6 Correct 32 ms 380 KB Output is correct
7 Correct 68 ms 480 KB Output is correct
8 Correct 142 ms 644 KB Output is correct
9 Correct 279 ms 900 KB Output is correct
10 Correct 14 ms 336 KB Output is correct
11 Correct 188 ms 768 KB Output is correct
12 Correct 286 ms 956 KB Output is correct
13 Correct 286 ms 956 KB Output is correct
14 Correct 284 ms 900 KB Output is correct
15 Correct 830 ms 2340 KB Output is correct
16 Correct 822 ms 2340 KB Output is correct
17 Correct 826 ms 2344 KB Output is correct
18 Correct 819 ms 2188 KB Output is correct
19 Correct 846 ms 2384 KB Output is correct
20 Correct 835 ms 2392 KB Output is correct
21 Correct 854 ms 2384 KB Output is correct
22 Correct 830 ms 2232 KB Output is correct
23 Incorrect 876 ms 2172 KB Wrong Answer [2]
24 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 14 ms 336 KB Output is correct
6 Correct 32 ms 380 KB Output is correct
7 Correct 68 ms 480 KB Output is correct
8 Correct 142 ms 644 KB Output is correct
9 Correct 279 ms 900 KB Output is correct
10 Correct 14 ms 336 KB Output is correct
11 Correct 188 ms 768 KB Output is correct
12 Correct 286 ms 956 KB Output is correct
13 Correct 286 ms 956 KB Output is correct
14 Correct 284 ms 900 KB Output is correct
15 Correct 830 ms 2340 KB Output is correct
16 Correct 822 ms 2340 KB Output is correct
17 Correct 826 ms 2344 KB Output is correct
18 Correct 819 ms 2188 KB Output is correct
19 Correct 846 ms 2384 KB Output is correct
20 Correct 835 ms 2392 KB Output is correct
21 Correct 854 ms 2384 KB Output is correct
22 Correct 830 ms 2232 KB Output is correct
23 Incorrect 876 ms 2172 KB Wrong Answer [2]
24 Halted 0 ms 0 KB -