oj.uz

Submission #187108

# Submission time Handle Problem Language Result Execution time Memory
187108 2020-01-12T12:51:36 Z Akashi Candies (JOI18_candies) C++14
100 / 100
 211 ms 10356 KB 
#include <bits/stdc++.h>
using namespace std;

const long long INF = 1e18;

int n;
long long a[200005];
int Left[200005], Right[200005];
priority_queue <pair <long long, int> > pq;

int main()
{
    scanf("%d", &n);

    for(int i = 1; i <= n ; ++i){
        scanf("%lld", &a[i]);
        Left[i] = i - 1; Right[i] = i + 1;
        pq.push({a[i], i});
    }
    Right[n] = 0;

    long long Sol = 0;
    for(int i = 1; i <= (n + 1) / 2 ; ++i){
        while(!pq.empty() && a[pq.top().second] != pq.top().first) pq.pop();
        int pos = pq.top().second;
        pq.pop();
        Sol += a[pos];
        printf("%lld\n", Sol);

        int L = Left[pos], R = Right[pos];
        Left[pos] = Left[L]; Right[pos] = Right[R];
        Right[Left[L]] = pos; Left[Right[R]] = pos;

        if(L && R) a[pos] = max(a[L] + a[R] - a[pos], -INF);
        else a[pos] = -INF;
        a[L] = a[R] = -INF;
        pq.push({a[pos], pos});
    }




    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]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
candies.cpp:16:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld", &a[i]);
         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 3 ms 504 KB Output is correct
4 Correct 4 ms 504 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 3 ms 504 KB Output is correct
7 Correct 3 ms 504 KB Output is correct
8 Correct 3 ms 504 KB Output is correct
9 Correct 3 ms 380 KB Output is correct
10 Correct 3 ms 504 KB Output is correct
11 Correct 14 ms 504 KB Output is correct
12 Correct 4 ms 504 KB Output is correct
13 Correct 3 ms 504 KB Output is correct
14 Correct 3 ms 504 KB Output is correct
15 Correct 3 ms 504 KB Output is correct
16 Correct 3 ms 504 KB Output is correct
17 Correct 1 ms 504 KB Output is correct
18 Correct 3 ms 504 KB Output is correct
19 Correct 3 ms 504 KB Output is correct
20 Correct 3 ms 504 KB Output is correct

Subtask #2
92.0 / 92.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 3 ms 504 KB Output is correct
4 Correct 4 ms 504 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 3 ms 504 KB Output is correct
7 Correct 3 ms 504 KB Output is correct
8 Correct 3 ms 504 KB Output is correct
9 Correct 3 ms 380 KB Output is correct
10 Correct 3 ms 504 KB Output is correct
11 Correct 14 ms 504 KB Output is correct
12 Correct 4 ms 504 KB Output is correct
13 Correct 3 ms 504 KB Output is correct
14 Correct 3 ms 504 KB Output is correct
15 Correct 3 ms 504 KB Output is correct
16 Correct 3 ms 504 KB Output is correct
17 Correct 1 ms 504 KB Output is correct
18 Correct 3 ms 504 KB Output is correct
19 Correct 3 ms 504 KB Output is correct
20 Correct 3 ms 504 KB Output is correct
21 Correct 155 ms 10120 KB Output is correct
22 Correct 150 ms 10076 KB Output is correct
23 Correct 157 ms 10356 KB Output is correct
24 Correct 106 ms 10080 KB Output is correct
25 Correct 107 ms 10048 KB Output is correct
26 Correct 108 ms 9936 KB Output is correct
27 Correct 124 ms 10208 KB Output is correct
28 Correct 125 ms 10228 KB Output is correct
29 Correct 132 ms 10264 KB Output is correct
30 Correct 151 ms 10332 KB Output is correct
31 Correct 166 ms 10240 KB Output is correct
32 Correct 127 ms 10080 KB Output is correct
33 Correct 211 ms 10076 KB Output is correct
34 Correct 166 ms 9948 KB Output is correct
35 Correct 138 ms 10120 KB Output is correct
36 Correct 155 ms 10216 KB Output is correct
37 Correct 154 ms 10204 KB Output is correct
38 Correct 156 ms 10240 KB Output is correct
39 Correct 111 ms 9972 KB Output is correct
40 Correct 130 ms 10140 KB Output is correct
41 Correct 125 ms 10176 KB Output is correct
42 Correct 164 ms 10204 KB Output is correct
43 Correct 143 ms 10248 KB Output is correct
44 Correct 135 ms 10260 KB Output is correct
45 Correct 128 ms 10204 KB Output is correct
46 Correct 152 ms 10296 KB Output is correct
47 Correct 149 ms 10320 KB Output is correct
48 Correct 154 ms 10076 KB Output is correct
49 Correct 138 ms 10044 KB Output is correct
50 Correct 137 ms 10048 KB Output is correct