Submission #362802

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
362802	2021-02-04 11:54:42	QCFium	Skyscraper (JOI16_skyscraper)	C++14	100 / 100	321 ms	3564 KiB

skyscraper

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#include <bits/stdc++.h>
int ri() {
  int n;
  scanf("%d", &n);
  return n;
}
#define MOD 1000000007
int main() {
  int n = ri();
  
  // !!!! corner case n <= 2  !!!!
  
  int l = ri();
  int a[n];
  for (auto &i : a) i = ri();
  
  std::sort(a, a + n);
  
  int dp[l + 1][n][2][2];
  memset(dp, 0, sizeof(dp));
  
  auto add = [&] (int &a, int b) {
    a += b;
    if (a >= MOD) a -= MOD;
  };
  
  for (int i = 0; i < 2; i++) for (int j = 0; j < 2; j++) dp[0][0][i][j] = 1;
 
 
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Compilation message (stderr)

skyscraper.cpp: In function 'int ri()':
skyscraper.cpp:5:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    5 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~

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