oj.uz

Submission #462503

# Submission time Handle Problem Language Result Execution time Memory
462503 2021-08-10T16:17:31 Z Killer2501 Candies (JOI18_candies) C++14
100 / 100
 639 ms 32016 KB 
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define task "asd"
#define pll pair<ll, ll>
#define pii pair<pll, ll>
#define fi first
#define se second

using namespace std;
const ll mod = 1e15+7;
const ll N = 2e5+5;
const int base = 313;
ll n, m, t, k, T, ans, tong, a[N], b[N], s, u, v, d[N][4], dp[N][4];
vector<pll> adj[N];
vector<ll> kq;

ll pw(ll k, ll n)
{
    ll total = 1;
    for(; n; n >>= 1)
    {
        if(n & 1)total = total * k % mod;
        k = k * k % mod;
    }
    return total;
}
void dij(ll ui, ll id)
{
    for(int i = 1; i <= n; i ++)d[i][id] = mod;
    priority_queue< pll, vector<pll>, greater<pll> > pq;
    pq.push({0, ui});
    d[ui][id] = 0;
    while(!pq.empty())
    {
        pll u = pq.top();
        pq.pop();
        if(u.fi != d[u.se][id])continue;
        for(pll v : adj[u.se])
        {
            if(d[v.se][id] > u.fi + v.fi)
            {
                d[v.se][id] = u.fi + v.fi;
                pq.push({d[v.se][id], v.se});
            }
        }
    }
}
void sol()
{
    cin >> n;
    set<pll> st;
    set<ll> id;
    for(int i = 1; i <= n; i ++)
    {
        cin >> a[i];
        st.insert({a[i], i});
        id.insert(i);
    }
    a[0] = a[n+1] = -mod;
    id.insert(0);
    id.insert(n+1);
    for(int i = 1; i <= (n+1)/2; i ++)
    {
        pll x = (*st.rbegin());
        ans += x.fi;
        st.erase(x);
        id.erase(x.se);
        auto lf = id.lower_bound(x.se);
        auto rt = id.upper_bound(x.se);
        --lf;
        ll l = *lf, r = *rt;
        id.erase(r);
        st.erase({a[l], l});
        st.erase({a[r], r});
        a[l] += a[r] - x.fi;
        st.insert({a[l], l});
        cout << ans << '\n';
    }
}
int main()
{
    if(fopen(task".INP", "r"))
    {
       freopen(task".INP", "r", stdin);
       freopen(task".OUT", "w", stdout);
    }
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int ntest = 1;
    //cin >> ntest;
    while(ntest -- > 0)
    sol();
}
/*
5 1
1 2
2 3
3 4
4 5
*/

Compilation message

candies.cpp: In function 'int main()':
candies.cpp:85:15: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   85 |        freopen(task".INP", "r", stdin);
      |        ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
candies.cpp:86:15: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   86 |        freopen(task".OUT", "w", stdout);
      |        ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 5196 KB Output is correct
2 Correct 6 ms 5288 KB Output is correct
3 Correct 5 ms 5196 KB Output is correct
4 Correct 5 ms 5288 KB Output is correct
5 Correct 5 ms 5196 KB Output is correct
6 Correct 7 ms 5196 KB Output is correct
7 Correct 5 ms 5196 KB Output is correct
8 Correct 6 ms 5196 KB Output is correct
9 Correct 5 ms 5196 KB Output is correct
10 Correct 5 ms 5292 KB Output is correct
11 Correct 5 ms 5196 KB Output is correct
12 Correct 5 ms 5288 KB Output is correct
13 Correct 5 ms 5276 KB Output is correct
14 Correct 6 ms 5196 KB Output is correct
15 Correct 5 ms 5196 KB Output is correct
16 Correct 5 ms 5196 KB Output is correct
17 Correct 7 ms 5196 KB Output is correct
18 Correct 5 ms 5292 KB Output is correct
19 Correct 5 ms 5196 KB Output is correct
20 Correct 5 ms 5288 KB Output is correct

Subtask #2
92.0 / 92.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 5196 KB Output is correct
2 Correct 6 ms 5288 KB Output is correct
3 Correct 5 ms 5196 KB Output is correct
4 Correct 5 ms 5288 KB Output is correct
5 Correct 5 ms 5196 KB Output is correct
6 Correct 7 ms 5196 KB Output is correct
7 Correct 5 ms 5196 KB Output is correct
8 Correct 6 ms 5196 KB Output is correct
9 Correct 5 ms 5196 KB Output is correct
10 Correct 5 ms 5292 KB Output is correct
11 Correct 5 ms 5196 KB Output is correct
12 Correct 5 ms 5288 KB Output is correct
13 Correct 5 ms 5276 KB Output is correct
14 Correct 6 ms 5196 KB Output is correct
15 Correct 5 ms 5196 KB Output is correct
16 Correct 5 ms 5196 KB Output is correct
17 Correct 7 ms 5196 KB Output is correct
18 Correct 5 ms 5292 KB Output is correct
19 Correct 5 ms 5196 KB Output is correct
20 Correct 5 ms 5288 KB Output is correct
21 Correct 615 ms 31828 KB Output is correct
22 Correct 628 ms 31920 KB Output is correct
23 Correct 571 ms 31864 KB Output is correct
24 Correct 269 ms 31644 KB Output is correct
25 Correct 275 ms 31696 KB Output is correct
26 Correct 282 ms 31796 KB Output is correct
27 Correct 296 ms 32016 KB Output is correct
28 Correct 299 ms 31856 KB Output is correct
29 Correct 293 ms 31864 KB Output is correct
30 Correct 307 ms 31904 KB Output is correct
31 Correct 318 ms 31996 KB Output is correct
32 Correct 310 ms 31812 KB Output is correct
33 Correct 416 ms 31656 KB Output is correct
34 Correct 421 ms 31704 KB Output is correct
35 Correct 422 ms 31732 KB Output is correct
36 Correct 615 ms 31852 KB Output is correct
37 Correct 565 ms 31812 KB Output is correct
38 Correct 639 ms 31808 KB Output is correct
39 Correct 270 ms 31744 KB Output is correct
40 Correct 273 ms 31644 KB Output is correct
41 Correct 267 ms 31712 KB Output is correct
42 Correct 297 ms 31904 KB Output is correct
43 Correct 292 ms 31852 KB Output is correct
44 Correct 295 ms 31888 KB Output is correct
45 Correct 305 ms 31812 KB Output is correct
46 Correct 311 ms 31808 KB Output is correct
47 Correct 303 ms 31864 KB Output is correct
48 Correct 429 ms 31684 KB Output is correct
49 Correct 434 ms 31824 KB Output is correct
50 Correct 411 ms 31628 KB Output is correct