Submission #135690

#	Time	Username	Problem	Language	Result	Execution time	Memory
135690		onjo0127	A Huge Tower (CEOI10_tower)	C++11	100 / 100	190 ms	8284 KiB

tower

#include <bits/stdc++.h>
using namespace std;

const long long MOD = 1e9 + 9;
int A[1000009];

int main() {
	int N, D; scanf("%d%d",&N,&D);
	for(int i=1; i<=N; i++) scanf("%d",&A[i]);
	sort(A+1, A+N+1);
	long long ans = 1;
	for(int i=1; i<=N; i++) {
		ans *= i - (lower_bound(A+1, A+i, A[i] - D) - A - 1);
		ans %= MOD;
	}
	printf("%lld", ans);
	return 0;
}

Compilation message (stderr)

tower.cpp: In function 'int main()':
tower.cpp:8:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int N, D; scanf("%d%d",&N,&D);
            ~~~~~^~~~~~~~~~~~~~
tower.cpp:9:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1; i<=N; i++) scanf("%d",&A[i]);
                          ~~~~~^~~~~~~~~~~~

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