Submission #60053

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
60053	2018-07-23T14:11:25 Z	Adhyyan1252	Vudu (COCI15_vudu)	C++11	112 / 140	1000 ms	40400 KB

vudu

#include<bits/stdc++.h>

// 6 47
typedef long long ll;
#define NMAX 1000005
#define SMAX 2300000


using namespace std;

int tree[SMAX];

void upd(int i, int s, int e, int indx){
	if(s == e){
		tree[i] = 1;
		return;
	}
	int m = (s + e)>>1;
	if(indx <= m) upd(i*2, s, m, indx);
	else upd(i*2+1, m+1, e, indx);
	tree[i] = tree[i*2] + tree[i*2+1];
}

ll query(int i, int s, int e, int l, int r){
	if(s >= l && e <= r) return tree[i];
	else if(s > r || e < l) return 0;
	int m = (s + e)>>1;
	return query(i*2, s, m, l, r) + query(i*2+1, m+1, e, l, r);
}

int main(){
	ios::sync_with_stdio(false); cin.tie(0);
	int n; cin>>n;
	ll a[n];
	for(int i = 0; i < n; i++){
		cin>>a[i];
	}	
	ll p; cin>>p;
	vector<pair<ll, int> > vi;
	ll zero = 0;
	for(int i = n-1; i >= 0; i--){
		a[i] -= p;
		zero -= a[i];
		ll cur = zero + a[i];
		//cout<<i<<" PUSH: "<<cur<<endl;
		vi.push_back({cur, i});
	}
	sort(vi.begin(), vi.end());
	vector<int> indx(n);
	for(int i = 0; i < n; i++){
		indx[vi[i].second] = i;
	}
	ll ans = 0; zero = 0;
	for(int i = n-1; i >= 0; i--){
		upd(1, 0, n-1, indx[i]);
		zero -= a[i];
		pair<ll, int>  temp = {zero, 0};
		int index = lower_bound(vi.begin(), vi.end(), temp ) - vi.begin();
		ans += query(1, 0, n-1, index, n-1);
	}
	cout<<ans<<endl;
}

Subtask #1

112.0 / 140.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	692 KB	Output is correct
2	Correct	8 ms	772 KB	Output is correct
3	Correct	8 ms	872 KB	Output is correct
4	Execution timed out	1049 ms	39488 KB	Time limit exceeded
5	Correct	588 ms	39488 KB	Output is correct
6	Correct	818 ms	39488 KB	Output is correct
7	Correct	931 ms	39488 KB	Output is correct
8	Correct	756 ms	39488 KB	Output is correct
9	Execution timed out	1046 ms	40400 KB	Time limit exceeded
10	Correct	862 ms	40400 KB	Output is correct