Submission #684800

#	Time	Username	Problem	Language	Result	Execution time	Memory
684800		US3RN4M3	Vudu (COCI15_vudu)	C++17	126 / 140	891 ms	65536 KiB

vudu

#include<ext/pb_ds/assoc_container.hpp>
#include<bits/stdc++.h>
using namespace std;
using namespace __gnu_pbds;
using ll = long long;
typedef tree<pair<ll, int>, null_type, less<pair<ll, int>>, rb_tree_tag, tree_order_statistics_node_update> ost;

main() {
	int n; cin >> n;
	vector<int> nums(n);
	for(int & i : nums) cin >> i;
	ll p; cin >> p;
	ost t;
	ll sum = 0;
	ll ans = 0;
	t.insert({0, -1});
	for(int i = 0; i < n; i++) {
		sum += nums[i];
		ll goal = p * (i + 1);
		ans += i + 1 - t.order_of_key({goal - sum, -1});
		t.insert({goal - sum, i});
	}
	cout << ans << endl;
}

Compilation message (stderr)

vudu.cpp:8:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    8 | main() {
      | ^~~~

• Subtask 1: 126 / 140