Submission #480201

#	Time	Username	Problem	Language	Result	Execution time	Memory
480201		mohamedsobhi777	A Huge Tower (CEOI10_tower)	C++14	0 / 100	3 ms	392 KiB

tower

#include <bits/stdc++.h>

using namespace std;

const int N = 2e5 + 7;
const int mod = 1e9 + 9 ; 
int n, d ; 
int a[N] ; 

int main()
{
       ios_base::sync_with_stdio(0);
       cin.tie(0);
#ifndef ONLINE_JUDGE
       freopen("in.in", "r", stdin);
#endif
       cin >> n >> d ; 
       for(int i = 1 ;i <= n; ++ i){
              cin >> a[i] ; 
       }
       sort(a + 1, a + n + 1) ; 
       int j = 1; 
       int ans = 1 ; 
       for(int i = 1 ;i <= n;++ i){
              while(a[i]-a[j]>d) ++ j; 
              int len = i - j + 1; 
              ans = 1ll * ans * len % mod ; 
       }
       cout << ans ; 
       return 0;
}

Compilation message (stderr)

tower.cpp: In function 'int main()':
tower.cpp:15:15: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |        freopen("in.in", "r", stdin);
      |        ~~~~~~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 5
• Subtask 4: 0 / 5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 5
• Subtask 7: 0 / 5
• Subtask 8: 0 / 5
• Subtask 9: 0 / 5
• Subtask 10: 0 / 5
• Subtask 11: 0 / 5
• Subtask 12: 0 / 5
• Subtask 13: 0 / 5
• Subtask 14: 0 / 5
• Subtask 15: 0 / 5
• Subtask 16: 0 / 5
• Subtask 17: 0 / 5
• Subtask 18: 0 / 5
• Subtask 19: 0 / 5
• Subtask 20: 0 / 5