Submission #564851

# Submission time Handle Problem Language Result Execution time Memory
564851 2022-05-19T19:36:32 Z cheissmart Sightseeing in Kyoto (JOI22_kyoto) C++14
100 / 100
29 ms 3628 KB
#include <bits/stdc++.h>
#define IO_OP ios::sync_with_stdio(0), cin.tie(0)
#define F first
#define S second
#define V vector
#define PB push_back
#define EB emplace_back
#define MP make_pair
#define SZ(v) int((v).size())
#define ALL(v) (v).begin(), (v).end()

using namespace std;

typedef long long ll;
typedef pair<int, int> pi;
typedef V<int> vi;

const int INF = 1e9 + 7;

bool check(int a, int b, int c, int d) { // a / b >= c / d ?
	assert(b > 0 && d > 0);
	return 1LL * a * d >= 1LL * b * c;
}

vi go(vi a) {
	vi h;
	int n = SZ(a);
	for(int i = 0; i < n; i++) {
		while(SZ(h) >= 2 && check(a[h[SZ(h) - 1]] - a[h[SZ(h) - 2]], h[SZ(h) - 1] - h[SZ(h) - 2], a[i] - a[h[SZ(h) - 1]], i - h[SZ(h) - 1]))
			h.pop_back();
		h.PB(i);
	}
	return h;
}

signed main()
{
	IO_OP;

	int n, m;
	cin >> n >> m;
	assert(n >= 2 && m >= 2);

	vi a(n), b(m);
	for(int i = 0; i < n; i++)
		cin >> a[i];
	for(int i = 0; i < m; i++)
		cin >> b[i];

	vi ha = go(a), hb = go(b);

	ll ans = 0;

	while(SZ(ha) >= 2 || SZ(hb) >= 2) {
		if(SZ(hb) == 1 || (SZ(ha) >= 2 && check(a[ha[SZ(ha) - 1]] - a[ha[SZ(ha) - 2]], ha[SZ(ha) - 1] - ha[SZ(ha) - 2], b[hb[SZ(hb) - 1]] - b[hb[SZ(hb) - 2]], hb[SZ(hb) - 1] - hb[SZ(hb) - 2]))) {
			ans += 1LL * (ha[SZ(ha) - 1] - ha[SZ(ha) - 2]) * b[hb.back()];
			ha.pop_back();
		} else {
			ans += 1LL * (hb[SZ(hb) - 1] - hb[SZ(hb) - 2]) * a[ha.back()];
			hb.pop_back();
		}
	}

	cout << ans << '\n';


}
# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 316 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 7 ms 1236 KB Output is correct
5 Correct 9 ms 1108 KB Output is correct
6 Correct 3 ms 720 KB Output is correct
7 Correct 17 ms 2128 KB Output is correct
8 Correct 16 ms 2224 KB Output is correct
9 Correct 17 ms 2232 KB Output is correct
10 Correct 18 ms 2144 KB Output is correct
11 Correct 17 ms 2132 KB Output is correct
12 Correct 15 ms 2236 KB Output is correct
13 Correct 16 ms 2228 KB Output is correct
14 Correct 15 ms 2216 KB Output is correct
15 Correct 15 ms 2332 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 316 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 316 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 7 ms 1236 KB Output is correct
33 Correct 9 ms 1108 KB Output is correct
34 Correct 3 ms 720 KB Output is correct
35 Correct 17 ms 2128 KB Output is correct
36 Correct 16 ms 2224 KB Output is correct
37 Correct 17 ms 2232 KB Output is correct
38 Correct 18 ms 2144 KB Output is correct
39 Correct 17 ms 2132 KB Output is correct
40 Correct 15 ms 2236 KB Output is correct
41 Correct 16 ms 2228 KB Output is correct
42 Correct 15 ms 2216 KB Output is correct
43 Correct 15 ms 2332 KB Output is correct
44 Correct 0 ms 212 KB Output is correct
45 Correct 0 ms 316 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 1 ms 212 KB Output is correct
55 Correct 11 ms 1748 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 2 ms 468 KB Output is correct
58 Correct 3 ms 724 KB Output is correct
59 Correct 23 ms 3352 KB Output is correct
60 Correct 23 ms 3240 KB Output is correct
61 Correct 23 ms 2956 KB Output is correct
62 Correct 29 ms 3180 KB Output is correct
63 Correct 23 ms 3628 KB Output is correct
64 Correct 27 ms 3184 KB Output is correct
65 Correct 24 ms 3336 KB Output is correct
66 Correct 21 ms 3372 KB Output is correct
67 Correct 26 ms 2660 KB Output is correct