# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
176226 |
2020-01-08T03:54:02 Z |
balbit |
Candies (JOI18_candies) |
C++14 |
|
5000 ms |
504 KB |
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int, int>
#define ull unsigned ll
#define f first
#define s second
#define FOR(i,a,b) for (int i=(a); i<(b); ++i)
#define REP(i,n) FOR(i,0,n)
#define RREP(i,n) for (int i=(n-1); i>=0; --i)
#define REP1(i,n) FOR(i,1,n+1)
#define ALL(x) x.begin(),x.end()
#define SZ(x) (int)x.size()
#define SQ(x) (x)*(x)
#define MN(a,b) a = min(a,(__typeof__(a))(b))
#define MX(a,b) a = max(a,(__typeof__(a))(b))
#define pb push_back
#define SORT_UNIQUE(c) (sort(c.begin(),c.end()), c.resize(distance(c.begin(),unique(c.begin(),c.end()))))
#ifdef BALBIT
#define IOS()
#define bug(...) fprintf(stderr,"#%d (%s) = ",__LINE__,#__VA_ARGS__),_do(__VA_ARGS__);
template<typename T> void _do(T &&x){cerr<<x<<endl;}
template<typename T, typename ...S> void _do(T &&x, S &&...y){cerr<<x<<", ";_do(y...);}
#else
#define IOS() ios_base::sync_with_stdio(0);cin.tie(0);
#define endl '\n'
#define bug(...)
#endif
const int iinf = 1<<29;
const ll inf = 1ll<<60;
const ll mod = 1e9+7;
void GG(){cout<<"-1\n"; exit(0);}
ll mpow(ll a, ll n, ll mo = mod){ // a^n % mod
ll re=1;
while (n>0){
if (n&1) re = re*a %mo;
a = a*a %mo;
n>>=1;
}
return re;
}
ll inv (ll b, ll mo = mod){
if (b==1) return b;
return (mo-mo/b) * inv(mo%b) % mo;
}
const int maxn = 1e5+5;
ll val[maxn];
signed main(){
IOS();
int n; cin>>n;
set<int> alive;
priority_queue<pii> pq;
REP(i,n) {
cin>>val[i];
alive.insert(i);
pq.push({val[i],i});
}
ll re = 0;
REP(cnt, (n+1)/2) {
while (val[pq.top().s] != pq.top().f) {
pq.pop();
}
int at = pq.top().s; pq.pop();
if (at == *alive.begin() or at == *alive.rbegin()) {
int x;
if (at!=*alive.begin()) x=*prev(alive.lower_bound(at));
else x = *alive.upper_bound(at);
re += val[at]; val[at]=val[x]=-inf;
alive.erase(at); alive.erase(x);
}else{
int x = *prev(alive.lower_bound(at));
int y = *alive.upper_bound(at);
alive.erase(x); alive.erase(y);
re += val[at]; val[at] = -val[at] + val[x] + val[y];
val[x] = val[y] = -inf;
pq.push({val[at],at});
}
cout<<re<<endl;
}
}
/*
5
3
5
1
7
6
*/
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
5033 ms |
504 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
5033 ms |
504 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |