oj.uz

Submission #625092

# Submission time Handle Problem Language Result Execution time Memory
625092 2022-08-09T10:40:11 Z Do_you_copy Minerals (JOI19_minerals) C++17
90 / 100
 57 ms 2516 KB 
#include <bits/stdc++.h>
#include "minerals.h"
#define taskname "test"
#define fi first
#define se second
#define pb push_back
#define faster ios_base::sync_with_stdio(0); cin.tie(0);
using namespace std;
using ll = long long;
using ull = unsigned ll;
using ld = long double;
using pii = pair <int, int>;
using pil = pair <int, ll>;
using pli = pair <ll, int>;
using pll = pair <ll, ll>;
mt19937 Rand(chrono::steady_clock::now().time_since_epoch().count());

ll min(const ll &a, const ll &b){
    return (a < b) ? a : b;
}

ll max(const ll &a, const ll &b){
    return (a > b) ? a : b;
}

//const ll Mod = 1000000007;
//const ll Mod2 = 999999999989;
//only use when required
const int maxN = 1e5 + 1;

int n;

vector <int> a, b;
int cur = 0;
bool open[maxN];
ll cntt =0;
void parallel_bs(vector <int> &w, int l = 1, int r = n){
    if (l == r){
        Answer(w.back(), a[l]);
        w.clear();
        return;
    }
    int mid = (l + r) / 2;
    int last = 0;
    int cntl1, cntl2, cntr1, cntr2;
    cntl1 = cntl2 = cntr1 = cntr2 = 0;
    for (int i = l; i <= mid; ++i){
        if (open[a[i]]){
            ++cntl1;
        }
    }
    for (int i = mid + 1; i <= r; ++i){
        if (!open[a[i]]){
            ++cntr1;
        }
    }
    cntl2 = mid - l + 1 - cntl1;
    cntr2 = r - mid - cntr1;
    bool flag = 0;
    int tem1[] = {mid - l + 1, r - mid};
    if (cntl1 + cntr1 > cntl2 + cntr2) flag = 1;
    for (int i = l; i <= mid; ++i){
        if (open[a[i]] ^ flag){
            open[a[i]] = 1 ^ open[a[i]];
            ++cntt;
            last = Query(a[i]);
        }
    }
    for (int i = mid + 1; i <= r; ++i){
        if (!open[a[i]] ^ flag){
            open[a[i]] = 1 ^ open[a[i]];
            ++cntt;
            last = Query(a[i]);
        }
    }
    vector <int> left, right;
    int _ = 0;
    random_shuffle(w.begin(), w.end());
    if (l == 1 && r == 2) cerr << w[0] << " ";
    for (_ = 0; _ < w.size(); ++_){
        int i = w[_];
        int tem = Query(i);
        open[i] ^= 1;
        if (last == tem) left.pb(i);
        else right.pb(i);
        if (left.size() == tem1[1 ^ flag] || right.size() == tem1[0 ^ flag]) break;
        last = tem;
    }
    ++_;
    if (left.size() == tem1[1 ^ flag]){
        for (; _ < w.size(); ++_){
            int i = w[_];
            right.pb(i);
        }
    }
    else if (right.size() == tem1[0 ^ flag]){
        for (; _ < w.size(); ++_){
            int i = w[_];
            left.pb(i);
        }
    }
    if (!flag) swap(left, right);
    //cerr << l << " " << r << " " << mid << " " << left.size() << " " << right.size() << "\n";
    //assert(right.size() == tem1[1 ^ flag]);
    w.clear();
    parallel_bs(left, l, mid);
    parallel_bs(right, mid + 1, r);
}

void Solve(int N){
    n = N;
    int last = 0;
    a.pb(0);
    for (int i = 1; i <= 2 * n; ++i){
        int tem = Query(i);
        if (tem > last) a.pb(i);
        else b.pb(i);
        last = tem;
    }
    fill (open, open + 2 * n + 1, 1);
    parallel_bs(b, 1, n);
    cerr << cntt << " ";
}

Compilation message

minerals.cpp: In function 'void parallel_bs(std::vector<int>&, int, int)':
minerals.cpp:80:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   80 |     for (_ = 0; _ < w.size(); ++_){
      |                 ~~^~~~~~~~~~
minerals.cpp:86:25: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   86 |         if (left.size() == tem1[1 ^ flag] || right.size() == tem1[0 ^ flag]) break;
      |             ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
minerals.cpp:86:59: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   86 |         if (left.size() == tem1[1 ^ flag] || right.size() == tem1[0 ^ flag]) break;
      |                                              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
minerals.cpp:90:21: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   90 |     if (left.size() == tem1[1 ^ flag]){
      |         ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
minerals.cpp:91:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   91 |         for (; _ < w.size(); ++_){
      |                ~~^~~~~~~~~~
minerals.cpp:96:27: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   96 |     else if (right.size() == tem1[0 ^ flag]){
      |              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
minerals.cpp:97:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   97 |         for (; _ < w.size(); ++_){
      |                ~~^~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 3 ms 328 KB Output is correct
3 Correct 5 ms 464 KB Output is correct
4 Correct 8 ms 628 KB Output is correct
5 Correct 16 ms 1016 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 1 ms 208 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 3 ms 328 KB Output is correct
7 Correct 5 ms 464 KB Output is correct
8 Correct 8 ms 628 KB Output is correct
9 Correct 16 ms 1016 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 12 ms 848 KB Output is correct
12 Correct 15 ms 992 KB Output is correct
13 Correct 14 ms 976 KB Output is correct
14 Correct 16 ms 948 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 1 ms 208 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 3 ms 328 KB Output is correct
7 Correct 5 ms 464 KB Output is correct
8 Correct 8 ms 628 KB Output is correct
9 Correct 16 ms 1016 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 12 ms 848 KB Output is correct
12 Correct 15 ms 992 KB Output is correct
13 Correct 14 ms 976 KB Output is correct
14 Correct 16 ms 948 KB Output is correct
15 Correct 46 ms 2396 KB Output is correct
16 Correct 45 ms 2324 KB Output is correct
17 Correct 44 ms 2288 KB Output is correct
18 Correct 39 ms 2048 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 1 ms 208 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 3 ms 328 KB Output is correct
7 Correct 5 ms 464 KB Output is correct
8 Correct 8 ms 628 KB Output is correct
9 Correct 16 ms 1016 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 12 ms 848 KB Output is correct
12 Correct 15 ms 992 KB Output is correct
13 Correct 14 ms 976 KB Output is correct
14 Correct 16 ms 948 KB Output is correct
15 Correct 46 ms 2396 KB Output is correct
16 Correct 45 ms 2324 KB Output is correct
17 Correct 44 ms 2288 KB Output is correct
18 Correct 39 ms 2048 KB Output is correct
19 Correct 43 ms 2268 KB Output is correct
20 Correct 48 ms 2348 KB Output is correct
21 Correct 43 ms 2224 KB Output is correct
22 Correct 44 ms 2080 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 3 ms 328 KB Output is correct
7 Correct 5 ms 464 KB Output is correct
8 Correct 8 ms 628 KB Output is correct
9 Correct 16 ms 1016 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 12 ms 848 KB Output is correct
12 Correct 15 ms 992 KB Output is correct
13 Correct 14 ms 976 KB Output is correct
14 Correct 16 ms 948 KB Output is correct
15 Correct 46 ms 2396 KB Output is correct
16 Correct 45 ms 2324 KB Output is correct
17 Correct 44 ms 2288 KB Output is correct
18 Correct 39 ms 2048 KB Output is correct
19 Correct 43 ms 2268 KB Output is correct
20 Correct 48 ms 2348 KB Output is correct
21 Correct 43 ms 2224 KB Output is correct
22 Correct 44 ms 2080 KB Output is correct
23 Correct 46 ms 2400 KB Output is correct
24 Correct 49 ms 2372 KB Output is correct
25 Correct 43 ms 2352 KB Output is correct
26 Correct 42 ms 2156 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 3 ms 328 KB Output is correct
7 Correct 5 ms 464 KB Output is correct
8 Correct 8 ms 628 KB Output is correct
9 Correct 16 ms 1016 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 12 ms 848 KB Output is correct
12 Correct 15 ms 992 KB Output is correct
13 Correct 14 ms 976 KB Output is correct
14 Correct 16 ms 948 KB Output is correct
15 Correct 46 ms 2396 KB Output is correct
16 Correct 45 ms 2324 KB Output is correct
17 Correct 44 ms 2288 KB Output is correct
18 Correct 39 ms 2048 KB Output is correct
19 Correct 43 ms 2268 KB Output is correct
20 Correct 48 ms 2348 KB Output is correct
21 Correct 43 ms 2224 KB Output is correct
22 Correct 44 ms 2080 KB Output is correct
23 Correct 46 ms 2400 KB Output is correct
24 Correct 49 ms 2372 KB Output is correct
25 Correct 43 ms 2352 KB Output is correct
26 Correct 42 ms 2156 KB Output is correct
27 Correct 57 ms 2448 KB Output is correct
28 Correct 54 ms 2444 KB Output is correct
29 Correct 44 ms 2376 KB Output is correct
30 Correct 42 ms 2168 KB Output is correct

Subtask #8
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 3 ms 328 KB Output is correct
7 Correct 5 ms 464 KB Output is correct
8 Correct 8 ms 628 KB Output is correct
9 Correct 16 ms 1016 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 12 ms 848 KB Output is correct
12 Correct 15 ms 992 KB Output is correct
13 Correct 14 ms 976 KB Output is correct
14 Correct 16 ms 948 KB Output is correct
15 Correct 46 ms 2396 KB Output is correct
16 Correct 45 ms 2324 KB Output is correct
17 Correct 44 ms 2288 KB Output is correct
18 Correct 39 ms 2048 KB Output is correct
19 Correct 43 ms 2268 KB Output is correct
20 Correct 48 ms 2348 KB Output is correct
21 Correct 43 ms 2224 KB Output is correct
22 Correct 44 ms 2080 KB Output is correct
23 Correct 46 ms 2400 KB Output is correct
24 Correct 49 ms 2372 KB Output is correct
25 Correct 43 ms 2352 KB Output is correct
26 Correct 42 ms 2156 KB Output is correct
27 Correct 57 ms 2448 KB Output is correct
28 Correct 54 ms 2444 KB Output is correct
29 Correct 44 ms 2376 KB Output is correct
30 Correct 42 ms 2168 KB Output is correct
31 Correct 49 ms 2480 KB Output is correct
32 Correct 57 ms 2436 KB Output is correct
33 Correct 45 ms 2360 KB Output is correct
34 Correct 45 ms 2320 KB Output is correct

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 3 ms 328 KB Output is correct
7 Correct 5 ms 464 KB Output is correct
8 Correct 8 ms 628 KB Output is correct
9 Correct 16 ms 1016 KB Output is correct
10 Correct 2 ms 336 KB Output is correct
11 Correct 12 ms 848 KB Output is correct
12 Correct 15 ms 992 KB Output is correct
13 Correct 14 ms 976 KB Output is correct
14 Correct 16 ms 948 KB Output is correct
15 Correct 46 ms 2396 KB Output is correct
16 Correct 45 ms 2324 KB Output is correct
17 Correct 44 ms 2288 KB Output is correct
18 Correct 39 ms 2048 KB Output is correct
19 Correct 43 ms 2268 KB Output is correct
20 Correct 48 ms 2348 KB Output is correct
21 Correct 43 ms 2224 KB Output is correct
22 Correct 44 ms 2080 KB Output is correct
23 Correct 46 ms 2400 KB Output is correct
24 Correct 49 ms 2372 KB Output is correct
25 Correct 43 ms 2352 KB Output is correct
26 Correct 42 ms 2156 KB Output is correct
27 Correct 57 ms 2448 KB Output is correct
28 Correct 54 ms 2444 KB Output is correct
29 Correct 44 ms 2376 KB Output is correct
30 Correct 42 ms 2168 KB Output is correct
31 Correct 49 ms 2480 KB Output is correct
32 Correct 57 ms 2436 KB Output is correct
33 Correct 45 ms 2360 KB Output is correct
34 Correct 45 ms 2320 KB Output is correct
35 Incorrect 50 ms 2516 KB Wrong Answer [2]
36 Halted 0 ms 0 KB -