Submission #614458

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
614458	2022-07-31 03:09:11	lunchbox	Skyscraper (JOI16_skyscraper)	C++17	100 / 100	84 ms	2900 KiB

skyscraper

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#include <bits/stdc++.h>
using namespace std;
const int N = 100 + 5, L = 1000 + 5, MD = 1000000007;
int main() {
  int n, l;
  scanf("%d%d", &n, &l);
  if (n == 1) {
    printf("1\n");
    return 0;
  }
  static int ar[N];
  for (int i = 1; i <= n; i++)
    scanf("%d", &ar[i]);
  sort(ar + 1, ar + n + 1);
  ar[n + 1] = L * 2;
  static int dp[N][L][3];
  dp[0][0][0] = 1;
  for (int i = 1; i <= n; i++) {
    static int dq[N][L][3];
    memset(dq, 0, sizeof dq);
    for (int j = 1; j <= i; j++)
      for (int k = 0; k <= l; k++)
        for (int m = 0; m < 3; m++) {
          int d = (2 * j - m) * (ar[i + 1] - ar[i]);
          if (d > k || i + j + 1 - m > n)
            continue;
          long long s = 0;
          s += dp[j - 1][k - d][m];
 
 
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Compilation message (stderr)

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:8:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |   scanf("%d%d", &n, &l);
      |   ~~~~~^~~~~~~~~~~~~~~~
skyscraper.cpp:15:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     scanf("%d", &ar[i]);
      |     ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 80 / 80