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Submission #378534

# Submission time Handle Problem Language Result Execution time Memory
378534 2021-03-17T01:33:28 Z LittleCube Chessboard (IZhO18_chessboard) C++14
0 / 100
 1 ms 512 KB 
#include <bits/stdc++.h>
using namespace std;

/*************************************
 * 
 *  Subtask 1 : 8 points
 * 
 */

signed main()
{
    int n, m, k;
    vector<int> v;
    cin >> n >> k;
    m = n;
    for (int i : {2, 3, 5, 7})
        while (m % i == 0)
            v.emplace_back(i), m /= i;
    if (m > 1)
        v.emplace_back(m);

    if (v.back() == 2)
        cout << n * n / 2 << '\n';
    else
        cout << (n * n - (n / v[0]) * (n / v[0])) / 2;
}

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Incorrect 1 ms 364 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 364 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 364 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 364 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 364 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Incorrect 1 ms 364 KB Output isn't correct
3 Halted 0 ms 0 KB -