oj.uz

Submission #120715

# Submission time Handle Problem Language Result Execution time Memory
120715 2019-06-25T10:10:26 Z onjo0127 Minerals (JOI19_minerals) C++14
70 / 100
 45 ms 2944 KB 
#include "minerals.h"
#include <bits/stdc++.h>
using namespace std;
using vi = vector<int>;

bool chk[100009];

int query(int x) {
    chk[x] = !chk[x];
    //printf("query x: %d\n", x);
    return Query(x);
}

void answer(int a, int b) {
    //printf("answer: (%d, %d)\n", a, b);
    Answer(a, b);
}

pair<vi, vi> split(int N) {
    vector<int> A, B;
    int pr = 0, i = 0;
    for(i=1; i<=2*N; i++) {
        int Q = query(i);
        if(pr != Q) A.push_back(i);
        else B.push_back(i);
        pr = Q;
    }
    return {A, B};
}

void go(vector<int> &A, vector<int> &B, bool AC) {
    //puts("AB");
    //for(auto& it: A) printf("%d ",it); puts("");
    //for(auto& it: B) printf("%d ",it); puts("");
    int N = A.size();
    if(N == 1) {
        answer(A[0], B[0]);
        return;
    }
    vector<int> LA, RA, LB, RB;
    int m = N/2, pr;
    if(!AC) {
        if(N >= 10) m = (int)(1.0*N/1.618);
        for(int i=0; i<m; i++) {
            pr = query(A[i]);
            LA.push_back(A[i]);
        }
        for(int i=m; i<N; i++) RA.push_back(A[i]);
    }
    if(AC) {
        if(N >= 10) m = N - (int)(1.0*N/1.618);
        for(int i=N-1; i>=m; i--) {
            pr = query(A[i]);
            RA.push_back(A[i]);
        }
        for(int i=0; i<m; i++) LA.push_back(A[i]);
    }
    int i;
    for(i=0; i<N; i++) {
        int Q = query(B[i]);
        if(pr != Q) RB.push_back(B[i]);
        else LB.push_back(B[i]);
        if(RB.size() == RA.size()) break;
        if(LB.size() == LA.size()) break;
        pr = Q;
    }
    if(RB.size() == RA.size()) for(++i; i<N; i++) LB.push_back(B[i]);
    else for(++i; i<N; i++) RB.push_back(B[i]);
    go(LA, LB, 1);
    go(RA, RB, 0);
}

void Solve(int N) {
    vi A, B; tie(A, B) = split(N);
    go(A, B, 1);
}

Compilation message

minerals.cpp: In function 'void go(std::vector<int>&, std::vector<int>&, bool)':
minerals.cpp:61:9: warning: 'pr' may be used uninitialized in this function [-Wmaybe-uninitialized]
         if(pr != Q) RB.push_back(B[i]);
         ^~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 6 ms 640 KB Output is correct
4 Correct 9 ms 768 KB Output is correct
5 Correct 17 ms 1280 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 6 ms 640 KB Output is correct
8 Correct 9 ms 768 KB Output is correct
9 Correct 17 ms 1280 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 11 ms 924 KB Output is correct
12 Correct 17 ms 1280 KB Output is correct
13 Correct 14 ms 1280 KB Output is correct
14 Correct 15 ms 1360 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 6 ms 640 KB Output is correct
8 Correct 9 ms 768 KB Output is correct
9 Correct 17 ms 1280 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 11 ms 924 KB Output is correct
12 Correct 17 ms 1280 KB Output is correct
13 Correct 14 ms 1280 KB Output is correct
14 Correct 15 ms 1360 KB Output is correct
15 Correct 43 ms 2880 KB Output is correct
16 Correct 42 ms 2872 KB Output is correct
17 Correct 31 ms 2820 KB Output is correct
18 Correct 32 ms 2676 KB Output is correct

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 6 ms 640 KB Output is correct
8 Correct 9 ms 768 KB Output is correct
9 Correct 17 ms 1280 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 11 ms 924 KB Output is correct
12 Correct 17 ms 1280 KB Output is correct
13 Correct 14 ms 1280 KB Output is correct
14 Correct 15 ms 1360 KB Output is correct
15 Correct 43 ms 2880 KB Output is correct
16 Correct 42 ms 2872 KB Output is correct
17 Correct 31 ms 2820 KB Output is correct
18 Correct 32 ms 2676 KB Output is correct
19 Incorrect 45 ms 2944 KB Wrong Answer [2]
20 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 6 ms 640 KB Output is correct
8 Correct 9 ms 768 KB Output is correct
9 Correct 17 ms 1280 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 11 ms 924 KB Output is correct
12 Correct 17 ms 1280 KB Output is correct
13 Correct 14 ms 1280 KB Output is correct
14 Correct 15 ms 1360 KB Output is correct
15 Correct 43 ms 2880 KB Output is correct
16 Correct 42 ms 2872 KB Output is correct
17 Correct 31 ms 2820 KB Output is correct
18 Correct 32 ms 2676 KB Output is correct
19 Incorrect 45 ms 2944 KB Wrong Answer [2]
20 Halted 0 ms 0 KB -

Subtask #7
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 6 ms 640 KB Output is correct
8 Correct 9 ms 768 KB Output is correct
9 Correct 17 ms 1280 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 11 ms 924 KB Output is correct
12 Correct 17 ms 1280 KB Output is correct
13 Correct 14 ms 1280 KB Output is correct
14 Correct 15 ms 1360 KB Output is correct
15 Correct 43 ms 2880 KB Output is correct
16 Correct 42 ms 2872 KB Output is correct
17 Correct 31 ms 2820 KB Output is correct
18 Correct 32 ms 2676 KB Output is correct
19 Incorrect 45 ms 2944 KB Wrong Answer [2]
20 Halted 0 ms 0 KB -

Subtask #8
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 6 ms 640 KB Output is correct
8 Correct 9 ms 768 KB Output is correct
9 Correct 17 ms 1280 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 11 ms 924 KB Output is correct
12 Correct 17 ms 1280 KB Output is correct
13 Correct 14 ms 1280 KB Output is correct
14 Correct 15 ms 1360 KB Output is correct
15 Correct 43 ms 2880 KB Output is correct
16 Correct 42 ms 2872 KB Output is correct
17 Correct 31 ms 2820 KB Output is correct
18 Correct 32 ms 2676 KB Output is correct
19 Incorrect 45 ms 2944 KB Wrong Answer [2]
20 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 6 ms 640 KB Output is correct
8 Correct 9 ms 768 KB Output is correct
9 Correct 17 ms 1280 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 11 ms 924 KB Output is correct
12 Correct 17 ms 1280 KB Output is correct
13 Correct 14 ms 1280 KB Output is correct
14 Correct 15 ms 1360 KB Output is correct
15 Correct 43 ms 2880 KB Output is correct
16 Correct 42 ms 2872 KB Output is correct
17 Correct 31 ms 2820 KB Output is correct
18 Correct 32 ms 2676 KB Output is correct
19 Incorrect 45 ms 2944 KB Wrong Answer [2]
20 Halted 0 ms 0 KB -