oj.uz

Submission #47913

# Submission time Handle Problem Language Result Execution time Memory
47913 2018-05-08T14:59:15 Z Just_Solve_The_Problem Candies (JOI18_candies) C++11
100 / 100
 141 ms 65096 KB 
#include <bits/stdc++.h>

using namespace std;

#define pii pair < ll, ll >
#define fr first
#define sc second
#define mk make_pair
#define ll long long

const ll inf = (ll)1e15 + 7;
const int N = (int)2e5 + 7;

int n;
priority_queue < pii > q;
ll a[N];
int prv[N], nxt[N];

main() {
  scanf("%d", &n);
  for (int i = 1; i <= n; i++) {
    scanf("%lld", &a[i]);
    q.emplace(mk(a[i], i));
    if (i > 1)
      prv[i] = i - 1;
    if (i < n)
      nxt[i] = i + 1;
  }
  ll ans = 0;
  for (int j = 1; j <= (n + 1) / 2; j++) {
    while (q.top().fr != a[q.top().sc]) q.pop();
    int i = q.top().sc;
    ans += q.top().fr;
    printf("%lld\n", ans);
    int l = prv[i];
    int r = nxt[i];
    nxt[i] = nxt[r];
    prv[i] = prv[l];
    nxt[prv[l]] = i;
    prv[nxt[r]] = i;
    if (l && r) {
      a[i] = max(a[l] + a[r] - a[i], -inf);
    } else {
      a[i] = -inf;
    }
    a[l] = a[r] = -inf;
    q.emplace(mk(a[i], i));
  }
}

Compilation message

candies.cpp:19:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^
candies.cpp: In function 'int main()':
candies.cpp:20:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
   ~~~~~^~~~~~~~~~
candies.cpp:22:10: 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 3 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 3 ms 592 KB Output is correct
4 Correct 3 ms 736 KB Output is correct
5 Correct 3 ms 736 KB Output is correct
6 Correct 3 ms 776 KB Output is correct
7 Correct 3 ms 820 KB Output is correct
8 Correct 3 ms 856 KB Output is correct
9 Correct 3 ms 876 KB Output is correct
10 Correct 3 ms 896 KB Output is correct
11 Correct 3 ms 916 KB Output is correct
12 Correct 3 ms 936 KB Output is correct
13 Correct 3 ms 952 KB Output is correct
14 Correct 3 ms 968 KB Output is correct
15 Correct 3 ms 988 KB Output is correct
16 Correct 3 ms 988 KB Output is correct
17 Correct 3 ms 1036 KB Output is correct
18 Correct 3 ms 1176 KB Output is correct
19 Correct 3 ms 1176 KB Output is correct
20 Correct 3 ms 1300 KB Output is correct

Subtask #2
92.0 / 92.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 3 ms 592 KB Output is correct
4 Correct 3 ms 736 KB Output is correct
5 Correct 3 ms 736 KB Output is correct
6 Correct 3 ms 776 KB Output is correct
7 Correct 3 ms 820 KB Output is correct
8 Correct 3 ms 856 KB Output is correct
9 Correct 3 ms 876 KB Output is correct
10 Correct 3 ms 896 KB Output is correct
11 Correct 3 ms 916 KB Output is correct
12 Correct 3 ms 936 KB Output is correct
13 Correct 3 ms 952 KB Output is correct
14 Correct 3 ms 968 KB Output is correct
15 Correct 3 ms 988 KB Output is correct
16 Correct 3 ms 988 KB Output is correct
17 Correct 3 ms 1036 KB Output is correct
18 Correct 3 ms 1176 KB Output is correct
19 Correct 3 ms 1176 KB Output is correct
20 Correct 3 ms 1300 KB Output is correct
21 Correct 133 ms 10780 KB Output is correct
22 Correct 140 ms 12876 KB Output is correct
23 Correct 138 ms 14628 KB Output is correct
24 Correct 103 ms 16464 KB Output is correct
25 Correct 107 ms 18240 KB Output is correct
26 Correct 102 ms 19984 KB Output is correct
27 Correct 115 ms 21944 KB Output is correct
28 Correct 116 ms 23900 KB Output is correct
29 Correct 119 ms 25856 KB Output is correct
30 Correct 126 ms 27956 KB Output is correct
31 Correct 119 ms 29912 KB Output is correct
32 Correct 120 ms 31744 KB Output is correct
33 Correct 128 ms 33476 KB Output is correct
34 Correct 125 ms 35344 KB Output is correct
35 Correct 119 ms 37024 KB Output is correct
36 Correct 135 ms 38984 KB Output is correct
37 Correct 141 ms 40872 KB Output is correct
38 Correct 138 ms 42940 KB Output is correct
39 Correct 111 ms 44748 KB Output is correct
40 Correct 105 ms 46400 KB Output is correct
41 Correct 111 ms 48200 KB Output is correct
42 Correct 131 ms 50104 KB Output is correct
43 Correct 124 ms 52096 KB Output is correct
44 Correct 119 ms 54016 KB Output is correct
45 Correct 116 ms 55992 KB Output is correct
46 Correct 136 ms 57948 KB Output is correct
47 Correct 117 ms 59904 KB Output is correct
48 Correct 121 ms 61732 KB Output is correct
49 Correct 120 ms 63468 KB Output is correct
50 Correct 122 ms 65096 KB Output is correct