oj.uz

Submission #388904

# Submission time Handle Problem Language Result Execution time Memory
388904 2021-04-13T09:36:11 Z denkendoemeer Candies (JOI18_candies) C++14
100 / 100
 135 ms 10180 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define inf 1e16
int nex[200005],pre[200005];
ll v[200005];
priority_queue<pair<ll,int>>pq;
int main()
{
    //freopen(".in","r",stdin);
    //freopen(".out","w",stdout);
    int n,i;
    scanf("%d",&n);
    for(i=1;i<=n;i++){
        scanf("%lld",&v[i]);
        nex[i]=i+1;
        pre[i]=i-1;
        pq.push(make_pair(v[i],i));
    }
    nex[n]=0;
    ll ans=0;
    for(i=1;i<=(n+1)/2;i++){
        while(pq.top().first!=v[pq.top().second])
            pq.pop();
        int x=pq.top().second,l=pre[x],r=nex[x];
        ans+=v[x];
        printf("%lld\n",ans);
        pq.pop();
        pre[nex[x]=nex[r]]=x;
        nex[pre[x]=pre[l]]=x;
        if (l && r)
            v[x]=max((ll)-inf,v[l]+v[r]-v[x]);
        else
            v[x]=-inf;
        v[l]=v[r]=-inf;
        pq.push(make_pair(v[x],x));
    }
return 0;
}

Compilation message

candies.cpp: In function 'int main()':
candies.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   13 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
candies.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   15 |         scanf("%lld",&v[i]);
      |         ~~~~~^~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 2 ms 332 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 2 ms 408 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 2 ms 324 KB Output is correct
14 Correct 2 ms 332 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 324 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct

Subtask #2
92.0 / 92.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 2 ms 332 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 2 ms 408 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 2 ms 324 KB Output is correct
14 Correct 2 ms 332 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 324 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 124 ms 10016 KB Output is correct
22 Correct 127 ms 10016 KB Output is correct
23 Correct 118 ms 10180 KB Output is correct
24 Correct 97 ms 9912 KB Output is correct
25 Correct 96 ms 9896 KB Output is correct
26 Correct 97 ms 9908 KB Output is correct
27 Correct 101 ms 10024 KB Output is correct
28 Correct 102 ms 10012 KB Output is correct
29 Correct 102 ms 10096 KB Output is correct
30 Correct 111 ms 10048 KB Output is correct
31 Correct 104 ms 10024 KB Output is correct
32 Correct 108 ms 10120 KB Output is correct
33 Correct 109 ms 9824 KB Output is correct
34 Correct 110 ms 9792 KB Output is correct
35 Correct 114 ms 9880 KB Output is correct
36 Correct 135 ms 10104 KB Output is correct
37 Correct 126 ms 10024 KB Output is correct
38 Correct 120 ms 10096 KB Output is correct
39 Correct 100 ms 9896 KB Output is correct
40 Correct 100 ms 9848 KB Output is correct
41 Correct 95 ms 9896 KB Output is correct
42 Correct 102 ms 10096 KB Output is correct
43 Correct 105 ms 10024 KB Output is correct
44 Correct 102 ms 10096 KB Output is correct
45 Correct 105 ms 10024 KB Output is correct
46 Correct 103 ms 10120 KB Output is correct
47 Correct 102 ms 10024 KB Output is correct
48 Correct 111 ms 9892 KB Output is correct
49 Correct 112 ms 9896 KB Output is correct
50 Correct 111 ms 9804 KB Output is correct