oj.uz

Submission #484684

# Submission time Handle Problem Language Result Execution time Memory
484684 2021-11-05T03:51:23 Z DeMen100ns Candies (JOI18_candies) C++17
100 / 100
 440 ms 22668 KB 
/*
Author : DeMen100ns (a.k.a Vo Khac Trieu self-destruct)
School : VNU-HCM High school for the Gifted
*/

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace __gnu_pbds;

using namespace std;

/*Pragma*/
#pragma GCC optimize("Ofast")
//#pragma GCC optimize("O3")
//#pragma GCC target("avx,avx2,fma")
//#pragma GCC optimization ("unroll-loops")
//#pragma GCC optimize("Os")
#pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")

/*Normal define*/
#define int long long
#define ll long long
//#define endl '\n'
#define gcd __gcd
#define ordered_set tree<ii, null_type,less<ii>, rb_tree_tag,tree_order_statistics_node_update>
//#define p prev
#define FastIO ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define count1 __builtin_popcountll

/*For define*/
#define For(i,a,b) for(ll i=a;i<=b;i++)
#define foR(i,a,b) for(ll i=a;i>=b;i--)
#define FOR(i,a,b) for(ll i=a;i<b;i++)
#define forN(i,a,b,c) for(ll i=a;i<=b;i+=c)
#define foRN(i,a,b,c) for(ll i=a;i>=b;i-=c)
#define fora(i, a) for (auto i : a)

/*push-pop-pair define*/
#define pb push_back
#define pob pop_back
#define pf push_front
#define pof pop_front
#define x first
#define y second

/*Print define*/
#define write(a, l, r) for (ll ik = l; ik <= r; ik++) cout << a[ik] << ' '; cout << endl
#define writeln(a, l, r) for (ll ik = l; ik <= r; ik++) cout << a[ik] << endl

/*Type-def*/
typedef unsigned long long  ull;
typedef vector<ll>      vi;
typedef pair<ll, ll>        ii;
typedef long double         ld;

/* Calculation with MODULO*/

const int MOD = 1e9 + 7;

ll dec(ll x, ll y, int mod = MOD) {return (x-y+mod)%mod;}
ll add(ll x, ll y, int mod = MOD) {return (x + y) % mod;}
ll mul(ll x, ll y, int mod = MOD) {return ((x%mod) * (y%mod)) % mod;}
ll bpow(ll x, ll y, int mod = MOD) {ll res = 1; while (y) {if (y & 1) res = mul(res, x, mod); x = mul(x, x, mod); y >>= 1;} return res;}
ll ModInverse(ll x, int mod = MOD) {return bpow(x, mod - 2, mod);}
ll Div(ll x, ll y, int mod = MOD) {return mul(x, ModInverse(y, mod), mod);}
bool GetBit(int val, int num) {return ((val>>num) & 1);}

/*Some simple checking and calculation function*/
string yn(bool k){if (k) return "Yes"; else return "No";}
__int128 binpower(__int128 base, __int128 e, __int128 mod) {__int128 result = 1;base %= mod;while (e){if (e & 1)result = (__int128)result * base % mod;base = (__int128)base * base % mod;e >>= 1;    }return result;}
bool check_composite(__int128 n, __int128 a, __int128 d, int s) {__int128 x = binpower(a, d, n); if (x == 1 or x == n - 1)return false;for (int r = 1; r < s; r++) {x = (__int128)x * x % n;if (x == n - 1)return false;}return true;};
bool checkprime(__int128 n) {if (n < 2)return false;int r = 0;__int128 d = n - 1;while ((d & 1) == 0) {d >>= 1;r++;}for (int a : {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37}) {if (n == a)return true;if (check_composite(n, a, d, r))return false;}return true;}
bool checksqr(ll k){return (trunc(sqrt(k))*trunc(sqrt(k))==k);}
ll lcm(ll a, ll b){return (a*b)/gcd(a,b);}
ll sum(ll n) {return n*(n+1)/2;}

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const int N = 1e6 + 5;
const int INF = 1e18 + 7;
const int B = sqrt(1e9 + 7) + 100;

int a[N], l[N], r[N], f[N];

set <ii, greater<ii>> s;

void solve(){
    int n;
    cin >> n;
    For(i,1,n) cin >> a[i], s.insert({a[i], i}), l[i] = i - 1, r[i] = i + 1;
    int ans = 0;
    s.insert({-INF, 0}); a[0] = -INF; r[0] = 1;
    s.insert({-INF, n + 1}); l[n + 1] = n; a[n + 1] = -INF;
    For(i,1,(n + 1)/2){
        auto it = s.begin();
        ii state = *it;
        int v = state.x, pos = state.y;
        s.erase(it);
        if (f[pos]){
            i--; continue;
        }
        ans += v;
        a[pos] = a[l[pos]] + a[r[pos]] - v;
        f[l[pos]] = f[r[pos]] = true;
        l[pos] = l[l[pos]]; r[pos] = r[r[pos]];
        r[l[pos]] = pos; l[r[pos]] = pos;
        s.insert({a[pos], pos});
        cout << ans << endl;
        //write(l,1,n);
        //write(r,1,n);
    }
}

signed main(){
    FastIO
    int t = 1; //cin >> t;
    while(t--){
        solve();
    }
}
/*
//Delete define endl when interactive prolem

INPUT :
4 10
0 1 6 5 
1 1 3 4
2 2 2 1
3 4 4
2 1 2 4
2 2 4 1
2 1 4 7
2 2 4 2
3 1 4
1 1 2 1
2 3 3 4

OUTPUT :
5
7

If it WA, check :
- Special case (Usually, n=1)
- WRONG FORMAT OUTPUT
- Check reading
- Change (ll) to (ull)
- lleger Overflow (The number that bigger than 2^63-1)
*/

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 460 KB Output is correct
2 Correct 3 ms 464 KB Output is correct
3 Correct 2 ms 460 KB Output is correct
4 Correct 3 ms 460 KB Output is correct
5 Correct 4 ms 464 KB Output is correct
6 Correct 3 ms 460 KB Output is correct
7 Correct 4 ms 460 KB Output is correct
8 Correct 3 ms 460 KB Output is correct
9 Correct 3 ms 460 KB Output is correct
10 Correct 2 ms 460 KB Output is correct
11 Correct 2 ms 460 KB Output is correct
12 Correct 3 ms 460 KB Output is correct
13 Correct 2 ms 460 KB Output is correct
14 Correct 3 ms 460 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 2 ms 472 KB Output is correct
17 Correct 4 ms 460 KB Output is correct
18 Correct 2 ms 464 KB Output is correct
19 Correct 3 ms 460 KB Output is correct
20 Correct 3 ms 460 KB Output is correct

Subtask #2
92.0 / 92.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 460 KB Output is correct
2 Correct 3 ms 464 KB Output is correct
3 Correct 2 ms 460 KB Output is correct
4 Correct 3 ms 460 KB Output is correct
5 Correct 4 ms 464 KB Output is correct
6 Correct 3 ms 460 KB Output is correct
7 Correct 4 ms 460 KB Output is correct
8 Correct 3 ms 460 KB Output is correct
9 Correct 3 ms 460 KB Output is correct
10 Correct 2 ms 460 KB Output is correct
11 Correct 2 ms 460 KB Output is correct
12 Correct 3 ms 460 KB Output is correct
13 Correct 2 ms 460 KB Output is correct
14 Correct 3 ms 460 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 2 ms 472 KB Output is correct
17 Correct 4 ms 460 KB Output is correct
18 Correct 2 ms 464 KB Output is correct
19 Correct 3 ms 460 KB Output is correct
20 Correct 3 ms 460 KB Output is correct
21 Correct 348 ms 22560 KB Output is correct
22 Correct 422 ms 22668 KB Output is correct
23 Correct 357 ms 22560 KB Output is correct
24 Correct 246 ms 22352 KB Output is correct
25 Correct 230 ms 22328 KB Output is correct
26 Correct 248 ms 22400 KB Output is correct
27 Correct 235 ms 22476 KB Output is correct
28 Correct 306 ms 22628 KB Output is correct
29 Correct 231 ms 22568 KB Output is correct
30 Correct 250 ms 22628 KB Output is correct
31 Correct 242 ms 22464 KB Output is correct
32 Correct 242 ms 22524 KB Output is correct
33 Correct 283 ms 22260 KB Output is correct
34 Correct 295 ms 22348 KB Output is correct
35 Correct 279 ms 22320 KB Output is correct
36 Correct 440 ms 22480 KB Output is correct
37 Correct 345 ms 22544 KB Output is correct
38 Correct 351 ms 22508 KB Output is correct
39 Correct 243 ms 22420 KB Output is correct
40 Correct 296 ms 22380 KB Output is correct
41 Correct 225 ms 22388 KB Output is correct
42 Correct 262 ms 22476 KB Output is correct
43 Correct 236 ms 22536 KB Output is correct
44 Correct 244 ms 22592 KB Output is correct
45 Correct 253 ms 22604 KB Output is correct
46 Correct 242 ms 22544 KB Output is correct
47 Correct 257 ms 22468 KB Output is correct
48 Correct 281 ms 22316 KB Output is correct
49 Correct 280 ms 22340 KB Output is correct
50 Correct 284 ms 22380 KB Output is correct