Submission #1084457

#	Time	Username	Problem	Language	Result	Execution time	Memory
1084457		7again	A Huge Tower (CEOI10_tower)	C++17	100 / 100	197 ms	10580 KiB

tower

#include <bits/stdc++.h>
using namespace std ;
#define int long long
const int N = 100 ;

main(){
    int n , k ;
    cin >> n >> k ;

    vector<int> a(n + 1) ;
    for(int i = 0 ; i < n ; i++) {
        cin >> a[i] ;
        a[i] *= -1 ;
    }
    a[n] = 1e12 ;
    sort(a.begin(), a.end() ) ;

    int ans = 1 ;
    for(int i = 0 ; i < n ; i++) {
        int r = upper_bound(a.begin(), a.end(), a[i] + k) - a.begin() ;
        ans *= r - i ;
        ans %= (1000000009) ;
    }

    cout << ans ;
}

Compilation message (stderr)

tower.cpp:6:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    6 | main(){
      | ^~~~

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