Submission #1084146

#	Time	Username	Problem	Language	Result	Execution time	Memory
1084146		TraianDanciu	A Huge Tower (CEOI10_tower)	C++17	100 / 100	92 ms	8724 KiB

tower

#include <stdio.h>
#include <algorithm>

#define MOD 1000000009
#define MAXN 1000000

int v[MAXN];

int main() {
  int n, i, j, rez, d;

  scanf("%d%d", &n, &d);
  for(i = 0; i < n; i++) {
    scanf("%d", &v[i]);
  }

  rez = 1;
  std::sort(v, v + n);
  j = 0;
  for(i = 0; i < n; i++) {
    while(j < n && v[i] + d >= v[j]) {
      j++;
    }
    rez = 1LL * rez * (j - i) % MOD;
  }

  printf("%d\n", rez);
  return 0;
}

Compilation message (stderr)

tower.cpp: In function 'int main()':
tower.cpp:12:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |   scanf("%d%d", &n, &d);
      |   ~~~~~^~~~~~~~~~~~~~~~
tower.cpp:14:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |     scanf("%d", &v[i]);
      |     ~~~~~^~~~~~~~~~~~~

• Subtask 1: 5 / 5
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