QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#65215 | #4428. Fence | Sa3tElSefr | TL | 0ms | 0kb | C++20 | 1.4kb | 2022-11-28 05:45:02 | 2022-11-28 05:45:05 |
Judging History
answer
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include <bits/stdc++.h>
typedef long long ll;
typedef long double ld;
using namespace std;
const int N = 1e6 + 5;
int t, n, a[N];
int pref[N];
vector<int> g[N];
int main() {
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
cin >> t;
while(t--) {
cin >> n;
int mx = 0;
for(int i = 1;i <= n;i++) {
cin >> a[i];
mx = max(mx, a[i]);
}
pref[n + 1] = pref[n + 2] = 0;
for(int i = n;i >= 1;i--)
pref[i] = pref[i + 2] + a[i];
set<int> st;
g[a[n + 1]].clear();
g[0].clear();
for(int i = 0;i <= n + 1;i++) {
st.insert(i);
g[a[i]].push_back(i);
}
a[n + 1] = 0;
for(int b = 1;b <= mx;b++) {
int p = 0;
int ans = 0;
for(auto it = st.begin();*it <= n;it++) {
int nxt = *next(it);
if(*it + 1 != nxt) {
bool flip = ((*it % 2) == (nxt % 2));
if(!p)
ans += pref[*it + 1] - pref[nxt + flip];
else
ans += pref[*it + 2] - pref[nxt + !flip];
p ^= flip;
}
int cnt = a[nxt] / b, rem = a[nxt] % b;
ans += ((cnt + !p) / 2) * b;
p ^= (cnt & 1);
if(rem) {
ans += !p * rem;
p ^= 1;
}
}
for(auto i : g[b])
st.erase(i);
cout << ans << '\n';
}
for(int i = 1;i <= n + 1;i++)
g[a[i]].clear();
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 0
Time Limit Exceeded
input:
5 333834 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...
output:
500000 500000 499995 499987 500000 500032 499996 499987 500032 500000 499994 499998 499981 499996 500080 500090 500077 500032 499980 499915 500035 499941 500055 499923 500000 499980 499935 500042 500174 499905 500002 499998 500218 499899 499965 500010 500144 500242 499839 499915 499987 500010 500122...