oj.uz

Submission #834008

# Submission time Handle Problem Language Result Execution time Memory
834008 2023-08-22T10:08:01 Z finn__ Comparing Plants (IOI20_plants) C++17
5 / 100
 4000 ms 4984 KB 
#include <bits/stdc++.h>

#include "plants.h"

using namespace std;

constexpr size_t N = 200000;

size_t n;
int subtask, s[N], h[N];

void init(int k, std::vector<int> r)
{
    n = r.size();
    if (k == 2)
        subtask = 1;
    else
        subtask = 2;

    if (subtask == 1)
    {
        partial_sum(r.begin(), r.end(), s);
    }
    else
    {
        for (size_t i = 0; i < n - 1; ++i)
        {
            int conseq_nonzero = 0, next_max = 0;
            for (size_t j = 0; j < 2 * n;)
            {
                while (j < 2 * n && (!r[j % n] || r[j % n] < 0))
                    ++j;
                size_t k = j;
                while (k < 2 * n && r[k % n])
                    ++k;
                if (k - j > conseq_nonzero)
                    conseq_nonzero = k - j, next_max = k % n;
                j = k;
            }

            h[next_max] = n - i;
            r[next_max] = -1;

            for (int j = next_max - k + 1; j < next_max; ++j)
                r[(j + (int)n) % n]--;
        }
    }
}

int compare_plants(int x, int y)
{
    if (subtask == 1)
    {
        int z = s[y - 1] - (x ? s[x - 1] : 0);
        return !z ? 1 : (z == y - x ? -1 : (!(s[n - 1] - z) ? -1 : ((s[n - 1] - z == n - (y - x) ? 1 : 0))));
    }
    else
    {
        return h[x] > h[y] ? 1 : -1;
    }
}

Compilation message

plants.cpp: In function 'void init(int, std::vector<int>)':
plants.cpp:36:27: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |                 if (k - j > conseq_nonzero)
      |                     ~~~~~~^~~~~~~~~~~~~~~~
plants.cpp: In function 'int compare_plants(int, int)':
plants.cpp:55:83: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         return !z ? 1 : (z == y - x ? -1 : (!(s[n - 1] - z) ? -1 : ((s[n - 1] - z == n - (y - x) ? 1 : 0))));
      |                                                                      ~~~~~~~~~~~~~^~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 45 ms 3156 KB Output is correct
7 Correct 44 ms 3352 KB Output is correct
8 Correct 57 ms 4940 KB Output is correct
9 Correct 59 ms 4940 KB Output is correct
10 Correct 56 ms 4940 KB Output is correct
11 Correct 56 ms 4984 KB Output is correct
12 Correct 56 ms 4980 KB Output is correct
13 Correct 60 ms 4976 KB Output is correct
14 Correct 56 ms 4940 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Incorrect 0 ms 212 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Incorrect 0 ms 212 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 84 ms 3140 KB Output is correct
4 Execution timed out 4058 ms 4232 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Incorrect 1 ms 212 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Incorrect 0 ms 212 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 45 ms 3156 KB Output is correct
7 Correct 44 ms 3352 KB Output is correct
8 Correct 57 ms 4940 KB Output is correct
9 Correct 59 ms 4940 KB Output is correct
10 Correct 56 ms 4940 KB Output is correct
11 Correct 56 ms 4984 KB Output is correct
12 Correct 56 ms 4980 KB Output is correct
13 Correct 60 ms 4976 KB Output is correct
14 Correct 56 ms 4940 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Incorrect 0 ms 212 KB Output isn't correct
19 Halted 0 ms 0 KB -