oj.uz

Submission #1046336

# Submission time Handle Problem Language Result Execution time Memory
1046336 2024-08-06T13:06:04 Z dpsaveslives Xylophone (JOI18_xylophone) C++17
100 / 100
 63 ms 848 KB 
#include <bits/stdc++.h>
using namespace std;
int query(int, int); 
void answer(int, int);
void solve(int N){
    vector<int> diffs(N+1,0);
    for(int i = 1;i<=N-1;++i){
        diffs[i] = query(i,i+1); 
    }
    vector<int> nums(N+1,0);
    int dir = 1; nums[2] = diffs[1];
    for(int i = 1;i<=N-2;++i){
        int val = query(i,i+2);
        if(val == diffs[i]+diffs[i+1]){ //same direction
            nums[i+2] = nums[i+1]+dir*diffs[i+1];
        }
        else{
            dir = (-1)*dir;
            nums[i+2] = nums[i+1]+dir*diffs[i+1];
        }
    }
    int minn = 0, maxx = 0;
 
    for(int i = 2;i<=N;++i){
        minn = min(minn,nums[i]);
        maxx = max(maxx,nums[i]);
    }
    if(maxx+1-minn > N){
        for(int i = 2;i<=N;++i){
            nums[i] = (-1)*nums[i];
        }
        minn = 0; 
        for(int i = 2;i<=N;++i){
            minn = min(minn,nums[i]);
        }
        for(int i = 1;i<=N;++i){
            answer(i,nums[i]+1-minn);
        }
    }
    else{
        int pos1 = -1, posN = -1;
        for(int i = 1;i<=N;++i){
            if(nums[i]+1-minn == 1){
                pos1 = i;
            }
            if(nums[i]+1-minn == N){
                posN = i;
            }
        }
        if(posN < pos1){
            for(int i = 2;i<=N;++i){
                nums[i] = (-1)*nums[i];
            }
            minn = 0; 
            for(int i = 2;i<=N;++i){
                minn = min(minn,nums[i]);
            }
            for(int i = 1;i<=N;++i){
                answer(i,nums[i]+1-minn);
            }
        }
        else{
            for(int i = 1;i<=N;++i){
                nums[i] += 1-minn;
                answer(i,nums[i]);
            }
        }
    }
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct

Subtask #2
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 6 ms 344 KB Output is correct
19 Correct 9 ms 600 KB Output is correct
20 Correct 11 ms 344 KB Output is correct
21 Correct 7 ms 344 KB Output is correct
22 Correct 11 ms 440 KB Output is correct
23 Correct 9 ms 344 KB Output is correct
24 Correct 8 ms 344 KB Output is correct
25 Correct 7 ms 344 KB Output is correct
26 Correct 7 ms 448 KB Output is correct
27 Correct 8 ms 344 KB Output is correct
28 Correct 8 ms 600 KB Output is correct
29 Correct 9 ms 436 KB Output is correct
30 Correct 9 ms 700 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 6 ms 344 KB Output is correct
19 Correct 9 ms 600 KB Output is correct
20 Correct 11 ms 344 KB Output is correct
21 Correct 7 ms 344 KB Output is correct
22 Correct 11 ms 440 KB Output is correct
23 Correct 9 ms 344 KB Output is correct
24 Correct 8 ms 344 KB Output is correct
25 Correct 7 ms 344 KB Output is correct
26 Correct 7 ms 448 KB Output is correct
27 Correct 8 ms 344 KB Output is correct
28 Correct 8 ms 600 KB Output is correct
29 Correct 9 ms 436 KB Output is correct
30 Correct 9 ms 700 KB Output is correct
31 Correct 26 ms 676 KB Output is correct
32 Correct 25 ms 600 KB Output is correct
33 Correct 35 ms 460 KB Output is correct
34 Correct 38 ms 592 KB Output is correct
35 Correct 54 ms 448 KB Output is correct
36 Correct 33 ms 452 KB Output is correct
37 Correct 50 ms 688 KB Output is correct
38 Correct 47 ms 444 KB Output is correct
39 Correct 38 ms 428 KB Output is correct
40 Correct 41 ms 452 KB Output is correct
41 Correct 47 ms 452 KB Output is correct
42 Correct 34 ms 344 KB Output is correct
43 Correct 41 ms 592 KB Output is correct
44 Correct 42 ms 448 KB Output is correct
45 Correct 48 ms 344 KB Output is correct
46 Correct 34 ms 452 KB Output is correct
47 Correct 52 ms 464 KB Output is correct
48 Correct 52 ms 448 KB Output is correct
49 Correct 51 ms 592 KB Output is correct
50 Correct 43 ms 688 KB Output is correct
51 Correct 48 ms 592 KB Output is correct
52 Correct 31 ms 344 KB Output is correct
53 Correct 38 ms 456 KB Output is correct
54 Correct 63 ms 444 KB Output is correct
55 Correct 44 ms 848 KB Output is correct
56 Correct 48 ms 344 KB Output is correct
57 Correct 39 ms 344 KB Output is correct
58 Correct 42 ms 448 KB Output is correct
59 Correct 51 ms 448 KB Output is correct
60 Correct 52 ms 848 KB Output is correct