oj.uz

Submission #771967

# Submission time Handle Problem Language Result Execution time Memory
771967 2023-07-03T12:57:40 Z doowey Minerals (JOI19_minerals) C++14
80 / 100
 324 ms 7804 KB 
#include <bits/stdc++.h>
#include "minerals.h"

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

#define fi first
#define se second
#define mp make_pair

mt19937 rng(323);

int gen(int m){
    return ((int)rng() % m + m) % m;
}

int las;
vector<pii> ans;
set<int> E;
int ask(int id){
    if(E.count(id)) E.erase(id);
    else E.insert(id);
    int res = Query(id);
    return res;
}

void shuffle(vector<int> &ord){
    for(int i = 0 ; i < ord.size(); i ++ ){
        swap(ord[i], ord[gen(i + 1)]);
    }
}


void pair_up(vector<int> A, vector<int> B, bool in_a, bool in_b){
    if(A.empty()) return;
    if(A.size() == 1){
        ans.push_back(mp(A[0], B[0]));
        return;
    }
    shuffle(A);
    shuffle(B);
    int mid = (int)A.size() / 2;
    vector<int> a0, a1;
    bool ia0 = in_a, ia1 = in_a;
    bool ib0 = in_b, ib1 = in_b;
    vector<int> b0, b1;
    for(int i = 0 ; i < mid; i ++ ){
        int cur = ask(A[i]);
        las=cur;
        a0.push_back(A[i]);
    }
    ia0 ^= 1;
    for(int i = mid ; i < A.size(); i ++ ){
        a1.push_back(A[i]);
    }
    ib0 ^= 1;
    for(auto x : B){
        int cur = ask(x);
        if(cur == las){
            if(ia0) b0.push_back(x);
            else b1.push_back(x);
        }
        else{
            if(ia0) b1.push_back(x);
            else b0.push_back(x);
        }
        las = cur;
    }
    pair_up(a0, b0, ia0, ib0);
    pair_up(a1, b1, ia1, ib1);
}


void Solve(int n) {
    las = 0;
    ans.clear();
    vector<int> ord;
    for(int i = 1; i <= 2 * n; i ++ ){
        ord.push_back(i);
    }
    shuffle(ord);
    vector<int> aa, bb;
    for(auto x : ord){
        int cur = ask(x);
        if(cur != las){
            aa.push_back(x);
        }
        else{
            bb.push_back(x);
        }
        las = cur;
    }
    pair_up(aa, bb, true, true);
    for (auto x : ans)
        Answer(x.fi, x.se);
}

Compilation message

minerals.cpp: In function 'void shuffle(std::vector<int>&)':
minerals.cpp:30:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |     for(int i = 0 ; i < ord.size(); i ++ ){
      |                     ~~^~~~~~~~~~~~
minerals.cpp: In function 'void pair_up(std::vector<int>, std::vector<int>, bool, bool)':
minerals.cpp:55:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |     for(int i = mid ; i < A.size(); i ++ ){
      |                       ~~^~~~~~~~~~

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 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 464 KB Output is correct
2 Correct 8 ms 592 KB Output is correct
3 Correct 19 ms 976 KB Output is correct
4 Correct 42 ms 1628 KB Output is correct
5 Correct 94 ms 3016 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 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 4 ms 464 KB Output is correct
6 Correct 8 ms 592 KB Output is correct
7 Correct 19 ms 976 KB Output is correct
8 Correct 42 ms 1628 KB Output is correct
9 Correct 94 ms 3016 KB Output is correct
10 Correct 4 ms 464 KB Output is correct
11 Correct 66 ms 2164 KB Output is correct
12 Correct 95 ms 3088 KB Output is correct
13 Correct 91 ms 2996 KB Output is correct
14 Correct 93 ms 2924 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 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 4 ms 464 KB Output is correct
6 Correct 8 ms 592 KB Output is correct
7 Correct 19 ms 976 KB Output is correct
8 Correct 42 ms 1628 KB Output is correct
9 Correct 94 ms 3016 KB Output is correct
10 Correct 4 ms 464 KB Output is correct
11 Correct 66 ms 2164 KB Output is correct
12 Correct 95 ms 3088 KB Output is correct
13 Correct 91 ms 2996 KB Output is correct
14 Correct 93 ms 2924 KB Output is correct
15 Correct 305 ms 7308 KB Output is correct
16 Correct 293 ms 7340 KB Output is correct
17 Correct 282 ms 7304 KB Output is correct
18 Correct 296 ms 7248 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 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 4 ms 464 KB Output is correct
6 Correct 8 ms 592 KB Output is correct
7 Correct 19 ms 976 KB Output is correct
8 Correct 42 ms 1628 KB Output is correct
9 Correct 94 ms 3016 KB Output is correct
10 Correct 4 ms 464 KB Output is correct
11 Correct 66 ms 2164 KB Output is correct
12 Correct 95 ms 3088 KB Output is correct
13 Correct 91 ms 2996 KB Output is correct
14 Correct 93 ms 2924 KB Output is correct
15 Correct 305 ms 7308 KB Output is correct
16 Correct 293 ms 7340 KB Output is correct
17 Correct 282 ms 7304 KB Output is correct
18 Correct 296 ms 7248 KB Output is correct
19 Correct 307 ms 7476 KB Output is correct
20 Correct 312 ms 7500 KB Output is correct
21 Correct 294 ms 7512 KB Output is correct
22 Correct 301 ms 7348 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 0 ms 208 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 4 ms 464 KB Output is correct
6 Correct 8 ms 592 KB Output is correct
7 Correct 19 ms 976 KB Output is correct
8 Correct 42 ms 1628 KB Output is correct
9 Correct 94 ms 3016 KB Output is correct
10 Correct 4 ms 464 KB Output is correct
11 Correct 66 ms 2164 KB Output is correct
12 Correct 95 ms 3088 KB Output is correct
13 Correct 91 ms 2996 KB Output is correct
14 Correct 93 ms 2924 KB Output is correct
15 Correct 305 ms 7308 KB Output is correct
16 Correct 293 ms 7340 KB Output is correct
17 Correct 282 ms 7304 KB Output is correct
18 Correct 296 ms 7248 KB Output is correct
19 Correct 307 ms 7476 KB Output is correct
20 Correct 312 ms 7500 KB Output is correct
21 Correct 294 ms 7512 KB Output is correct
22 Correct 301 ms 7348 KB Output is correct
23 Correct 308 ms 7644 KB Output is correct
24 Correct 315 ms 7728 KB Output is correct
25 Correct 323 ms 7696 KB Output is correct
26 Correct 310 ms 7488 KB Output is correct

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 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 4 ms 464 KB Output is correct
6 Correct 8 ms 592 KB Output is correct
7 Correct 19 ms 976 KB Output is correct
8 Correct 42 ms 1628 KB Output is correct
9 Correct 94 ms 3016 KB Output is correct
10 Correct 4 ms 464 KB Output is correct
11 Correct 66 ms 2164 KB Output is correct
12 Correct 95 ms 3088 KB Output is correct
13 Correct 91 ms 2996 KB Output is correct
14 Correct 93 ms 2924 KB Output is correct
15 Correct 305 ms 7308 KB Output is correct
16 Correct 293 ms 7340 KB Output is correct
17 Correct 282 ms 7304 KB Output is correct
18 Correct 296 ms 7248 KB Output is correct
19 Correct 307 ms 7476 KB Output is correct
20 Correct 312 ms 7500 KB Output is correct
21 Correct 294 ms 7512 KB Output is correct
22 Correct 301 ms 7348 KB Output is correct
23 Correct 308 ms 7644 KB Output is correct
24 Correct 315 ms 7728 KB Output is correct
25 Correct 323 ms 7696 KB Output is correct
26 Correct 310 ms 7488 KB Output is correct
27 Incorrect 324 ms 7804 KB Wrong Answer [2]
28 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 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 4 ms 464 KB Output is correct
6 Correct 8 ms 592 KB Output is correct
7 Correct 19 ms 976 KB Output is correct
8 Correct 42 ms 1628 KB Output is correct
9 Correct 94 ms 3016 KB Output is correct
10 Correct 4 ms 464 KB Output is correct
11 Correct 66 ms 2164 KB Output is correct
12 Correct 95 ms 3088 KB Output is correct
13 Correct 91 ms 2996 KB Output is correct
14 Correct 93 ms 2924 KB Output is correct
15 Correct 305 ms 7308 KB Output is correct
16 Correct 293 ms 7340 KB Output is correct
17 Correct 282 ms 7304 KB Output is correct
18 Correct 296 ms 7248 KB Output is correct
19 Correct 307 ms 7476 KB Output is correct
20 Correct 312 ms 7500 KB Output is correct
21 Correct 294 ms 7512 KB Output is correct
22 Correct 301 ms 7348 KB Output is correct
23 Correct 308 ms 7644 KB Output is correct
24 Correct 315 ms 7728 KB Output is correct
25 Correct 323 ms 7696 KB Output is correct
26 Correct 310 ms 7488 KB Output is correct
27 Incorrect 324 ms 7804 KB Wrong Answer [2]
28 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 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 4 ms 464 KB Output is correct
6 Correct 8 ms 592 KB Output is correct
7 Correct 19 ms 976 KB Output is correct
8 Correct 42 ms 1628 KB Output is correct
9 Correct 94 ms 3016 KB Output is correct
10 Correct 4 ms 464 KB Output is correct
11 Correct 66 ms 2164 KB Output is correct
12 Correct 95 ms 3088 KB Output is correct
13 Correct 91 ms 2996 KB Output is correct
14 Correct 93 ms 2924 KB Output is correct
15 Correct 305 ms 7308 KB Output is correct
16 Correct 293 ms 7340 KB Output is correct
17 Correct 282 ms 7304 KB Output is correct
18 Correct 296 ms 7248 KB Output is correct
19 Correct 307 ms 7476 KB Output is correct
20 Correct 312 ms 7500 KB Output is correct
21 Correct 294 ms 7512 KB Output is correct
22 Correct 301 ms 7348 KB Output is correct
23 Correct 308 ms 7644 KB Output is correct
24 Correct 315 ms 7728 KB Output is correct
25 Correct 323 ms 7696 KB Output is correct
26 Correct 310 ms 7488 KB Output is correct
27 Incorrect 324 ms 7804 KB Wrong Answer [2]
28 Halted 0 ms 0 KB -