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Submission #901566

# Submission time Handle Problem Language Result Execution time Memory
901566 2024-01-09T15:00:35 Z duckindog Magneti (COCI21_magneti) C++14
0 / 110
 1000 ms 604 KB 
// from duckindog wth depression
#include<bits/stdc++.h>

using namespace std;

const int N = 50 + 10,
          L = 1e4 + 10,
          M = 19 + 7;
int n, l;
int r[N];
void sub1() {
  vector<vector<long long>> f(2, vector<long long> (l + 1));
  const int x = r[1];
  for (int i = 1; i <= l; ++i) f[1][i] = n;

  for (int i = 2; i <= n; ++i) {
    int it = i & 1;
    for (int j = 0; j <= l; ++j) f[it][j] = 0;
    for (int j = x; j <= l; ++j) {
      auto &ret = f[it][j];
      for (int t = 0; t <= j - x; ++t) ret = (ret + f[it ^ 1][t]) % M;
      ret = (ret * (n - i + 1)) % M;
    }
  }
  long long answer = 0;
  for (int i = 0; i <= l; ++i) answer = (answer + f[n & 1][i]) % M;
  cout << answer;
}

int32_t main() {
  cin.tie(0)->sync_with_stdio(0);

  if (fopen("duck.inp", "r")) {
    freopen("duck.inp", "r", stdin);
    freopen("duck.out", "w", stdout);
  }
  cin >> n >> l;
  for(int i = 1; i <= n; ++i) cin >> r[i];
  sort(r + 1, r + n + 1);
  int sub = r[1] == r[n] ? 1 : n <= 10 ? 2 : (n <= 30 && l <= 300) ? 3 : 4;

  if (sub == 1) {
    sub1();
    return 0;
  }


}

Compilation message

Main.cpp: In function 'int32_t main()':
Main.cpp:34:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |     freopen("duck.inp", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:35:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 |     freopen("duck.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1072 ms 604 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 50.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1072 ms 604 KB Time limit exceeded
2 Halted 0 ms 0 KB -