# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
446260 |
2021-07-21T11:34:38 Z |
zxcvbnm |
Vudu (COCI15_vudu) |
C++14 |
|
627 ms |
65540 KB |
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define int ll
struct Ft {
vector<ll> bit;
int n;
void build(vector<ll> a) {
n = a.size();
bit.assign(n+2, 0);
}
void update(int idx, int x) {
while(idx <= n) {
bit[idx] += x;
idx += idx & -idx;
}
}
ll sum(int idx) {
ll sum = 0;
while(idx > 0) {
sum += bit[idx];
idx -= idx & -idx;
}
return sum;
}
};
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int n;
cin >> n;
vector<int> a(n);
for(int& i : a) {
cin >> i;
}
int p;
cin >> p;
vector<ll> sum = {0};
for(int i : a) {
sum.push_back(sum.back()+(i-p));
}
vector<ll> cnt(n+3, 0);
vector<ll> sums = sum;
sort(sums.begin(), sums.end());
map<ll, int> mp;
int idx = 1;
for(int i = 0; i < (int) sums.size(); i++) {
if (i != 0 && sums[i-1] == sums[i]) continue;
mp[sums[i]] = idx++;
}
Ft ft;
ft.build(sums);
ll ans = 0;
for(ll i : sum) {
ans += ft.sum(mp[i]);
ft.update(mp[i], +1);
}
cout << ans << "\n";
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
1100 KB |
Output is correct |
2 |
Correct |
4 ms |
844 KB |
Output is correct |
3 |
Correct |
3 ms |
844 KB |
Output is correct |
4 |
Runtime error |
385 ms |
65540 KB |
Execution killed with signal 9 |
5 |
Correct |
627 ms |
60172 KB |
Output is correct |
6 |
Runtime error |
372 ms |
65540 KB |
Execution killed with signal 9 |
7 |
Runtime error |
368 ms |
65540 KB |
Execution killed with signal 9 |
8 |
Runtime error |
360 ms |
65540 KB |
Execution killed with signal 9 |
9 |
Runtime error |
382 ms |
65540 KB |
Execution killed with signal 9 |
10 |
Runtime error |
398 ms |
65540 KB |
Execution killed with signal 9 |