oj.uz

Submission #44438

# Submission time Handle Problem Language Result Execution time Memory
44438 2018-04-02T07:22:08 Z ssnsarang2023 Candies (JOI18_candies) C++17
100 / 100
 169 ms 10316 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<ll, int> pli;

const int N = (int)2e5+5;
const ll oo = (ll)1e16;
int n, nxt[N], pre[N];
ll a[N];
priority_queue<pli> pq;

int main() {
	scanf("%d", &n);
	for (int i = 1; i <= n; ++i) {
		scanf("%lld", &a[i]);
		nxt[i] = i + 1, pre[i] = i - 1;
		pq.push(pli(a[i], i));
	}
	nxt[n] = 0;
	ll ans = 0;
	for (int i = 1; i <= ((n + 1) >> 1); ++i) {
		for (; pq.top().first != a[pq.top().second]; pq.pop());
		int x = pq.top().second, l = pre[x], r = nxt[x];
		printf("%lld\n", ans += a[x]);
		pq.pop();
		pre[nxt[x] = nxt[r]] = x;
		nxt[pre[x] = pre[l]] = x;
		a[x] = l && r ? max(-oo, a[l] + a[r] - a[x]) : -oo;
		a[l] = a[r] = -oo;
		pq.push(pli(a[x], x));
	}
	return 0;
}

Compilation message

candies.cpp: In function 'int main()':
candies.cpp:14:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
candies.cpp:16:8: 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 340 KB Output is correct
2 Correct 3 ms 484 KB Output is correct
3 Correct 3 ms 580 KB Output is correct
4 Correct 4 ms 580 KB Output is correct
5 Correct 3 ms 732 KB Output is correct
6 Correct 4 ms 732 KB Output is correct
7 Correct 3 ms 732 KB Output is correct
8 Correct 3 ms 732 KB Output is correct
9 Correct 3 ms 764 KB Output is correct
10 Correct 3 ms 764 KB Output is correct
11 Correct 3 ms 764 KB Output is correct
12 Correct 3 ms 764 KB Output is correct
13 Correct 4 ms 764 KB Output is correct
14 Correct 3 ms 764 KB Output is correct
15 Correct 3 ms 764 KB Output is correct
16 Correct 3 ms 764 KB Output is correct
17 Correct 3 ms 824 KB Output is correct
18 Correct 3 ms 876 KB Output is correct
19 Correct 3 ms 900 KB Output is correct
20 Correct 3 ms 900 KB Output is correct

Subtask #2
92.0 / 92.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 340 KB Output is correct
2 Correct 3 ms 484 KB Output is correct
3 Correct 3 ms 580 KB Output is correct
4 Correct 4 ms 580 KB Output is correct
5 Correct 3 ms 732 KB Output is correct
6 Correct 4 ms 732 KB Output is correct
7 Correct 3 ms 732 KB Output is correct
8 Correct 3 ms 732 KB Output is correct
9 Correct 3 ms 764 KB Output is correct
10 Correct 3 ms 764 KB Output is correct
11 Correct 3 ms 764 KB Output is correct
12 Correct 3 ms 764 KB Output is correct
13 Correct 4 ms 764 KB Output is correct
14 Correct 3 ms 764 KB Output is correct
15 Correct 3 ms 764 KB Output is correct
16 Correct 3 ms 764 KB Output is correct
17 Correct 3 ms 824 KB Output is correct
18 Correct 3 ms 876 KB Output is correct
19 Correct 3 ms 900 KB Output is correct
20 Correct 3 ms 900 KB Output is correct
21 Correct 164 ms 9972 KB Output is correct
22 Correct 154 ms 9972 KB Output is correct
23 Correct 169 ms 9976 KB Output is correct
24 Correct 112 ms 10028 KB Output is correct
25 Correct 110 ms 10028 KB Output is correct
26 Correct 116 ms 10184 KB Output is correct
27 Correct 131 ms 10184 KB Output is correct
28 Correct 132 ms 10240 KB Output is correct
29 Correct 128 ms 10240 KB Output is correct
30 Correct 128 ms 10240 KB Output is correct
31 Correct 130 ms 10312 KB Output is correct
32 Correct 128 ms 10312 KB Output is correct
33 Correct 143 ms 10312 KB Output is correct
34 Correct 167 ms 10312 KB Output is correct
35 Correct 143 ms 10316 KB Output is correct
36 Correct 152 ms 10316 KB Output is correct
37 Correct 163 ms 10316 KB Output is correct
38 Correct 161 ms 10316 KB Output is correct
39 Correct 141 ms 10316 KB Output is correct
40 Correct 110 ms 10316 KB Output is correct
41 Correct 113 ms 10316 KB Output is correct
42 Correct 136 ms 10316 KB Output is correct
43 Correct 131 ms 10316 KB Output is correct
44 Correct 128 ms 10316 KB Output is correct
45 Correct 136 ms 10316 KB Output is correct
46 Correct 128 ms 10316 KB Output is correct
47 Correct 137 ms 10316 KB Output is correct
48 Correct 139 ms 10316 KB Output is correct
49 Correct 140 ms 10316 KB Output is correct
50 Correct 141 ms 10316 KB Output is correct