oj.uz

답안 #819397

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
819397 2023-08-10T10:17:18 Z AdamGS Cake 3 (JOI19_cake3) C++17
100 / 100
 2971 ms 22952 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const ll INF=1e18+7;
const int LIM=2e5+7;
pair<ll,ll>T[LIM], dp[LIM];
multiset<ll>S;
vector<pair<ll,ll>>rollback;
ll akt, n, m;
void upd(int x) {
	S.insert(T[x].nd);
	akt+=T[x].nd;
	if(S.size()>m-2) {
		rollback.pb({T[x].nd, *S.begin()});
		akt-=*S.begin();
		S.erase(S.begin());
	} else rollback.pb({T[x].nd, -1});
}
void undo() {
	if(rollback.back().nd!=-1) {
		akt+=rollback.back().nd;
		S.insert(rollback.back().nd);
	}
	akt-=rollback.back().st;
	S.erase(S.find(rollback.back().st));
	rollback.pop_back();
}
void solve(int l, int r, int a, int b) {
	if(l>r) return;
	int mid=(l+r)/2;
	for(int i=mid+1; i<=min(r, a-1); ++i) upd(i);
	for(int i=max(mid+1, a); i<=b; ++i) {
		if(S.size()==m-2) dp[mid]=max(dp[mid], {akt+T[i].nd+T[mid].nd-2*T[i].st+2*T[mid].st, i});
		upd(i);
	}
	for(int i=b; i>=max(mid+1, a); --i) undo();
	if(mid<a) upd(mid);
	solve(l, mid-1, a, dp[mid].nd);
	if(mid<a) undo();
	for(int i=min(r, a-1); i>=mid+1; --i) undo();
	for(int i=max(r+1, a); i<dp[mid].nd; ++i) upd(i);
	solve(mid+1, r, dp[mid].nd, b);
	for(int i=dp[mid].nd-1; i>=max(r+1, a); --i) undo();
}
int main() {
	ios_base::sync_with_stdio(0); cin.tie(0);
	cin >> n >> m;
	rep(i, n) dp[i]={-INF, -1};
	rep(i, n) cin >> T[i].nd >> T[i].st;
	sort(T, T+n);
	solve(0, n-m, 0, n-1);
	ll ans=-INF;
	rep(i, n-m+1) ans=max(ans, dp[i].st);
	cout << ans << '\n';
}

Compilation message

cake3.cpp: In function 'void upd(int)':
cake3.cpp:18:13: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   18 |  if(S.size()>m-2) {
      |     ~~~~~~~~^~~~
cake3.cpp: In function 'void solve(int, int, int, int)':
cake3.cpp:38:14: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   38 |   if(S.size()==m-2) dp[mid]=max(dp[mid], {akt+T[i].nd+T[mid].nd-2*T[i].st+2*T[mid].st, i});
      |      ~~~~~~~~^~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 0 ms 340 KB Output is correct

Subtask #2
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 7 ms 476 KB Output is correct
39 Correct 8 ms 468 KB Output is correct
40 Correct 7 ms 468 KB Output is correct
41 Correct 7 ms 468 KB Output is correct
42 Correct 7 ms 468 KB Output is correct
43 Correct 7 ms 492 KB Output is correct
44 Correct 6 ms 464 KB Output is correct
45 Correct 7 ms 468 KB Output is correct
46 Correct 7 ms 468 KB Output is correct
47 Correct 7 ms 468 KB Output is correct
48 Correct 6 ms 468 KB Output is correct
49 Correct 7 ms 468 KB Output is correct
50 Correct 7 ms 480 KB Output is correct
51 Correct 8 ms 488 KB Output is correct
52 Correct 6 ms 468 KB Output is correct
53 Correct 6 ms 468 KB Output is correct
54 Correct 6 ms 468 KB Output is correct
55 Correct 6 ms 468 KB Output is correct
56 Correct 5 ms 496 KB Output is correct
57 Correct 6 ms 468 KB Output is correct
58 Correct 6 ms 492 KB Output is correct
59 Correct 5 ms 468 KB Output is correct
60 Correct 5 ms 472 KB Output is correct
61 Correct 5 ms 468 KB Output is correct
62 Correct 4 ms 468 KB Output is correct
63 Correct 6 ms 508 KB Output is correct
64 Correct 5 ms 468 KB Output is correct
65 Correct 8 ms 472 KB Output is correct
66 Correct 7 ms 468 KB Output is correct
67 Correct 8 ms 468 KB Output is correct
68 Correct 7 ms 468 KB Output is correct
69 Correct 6 ms 484 KB Output is correct
70 Correct 8 ms 468 KB Output is correct
71 Correct 6 ms 468 KB Output is correct
72 Correct 6 ms 468 KB Output is correct
73 Correct 5 ms 480 KB Output is correct
74 Correct 1 ms 468 KB Output is correct

Subtask #3
76.0 / 76.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 7 ms 476 KB Output is correct
39 Correct 8 ms 468 KB Output is correct
40 Correct 7 ms 468 KB Output is correct
41 Correct 7 ms 468 KB Output is correct
42 Correct 7 ms 468 KB Output is correct
43 Correct 7 ms 492 KB Output is correct
44 Correct 6 ms 464 KB Output is correct
45 Correct 7 ms 468 KB Output is correct
46 Correct 7 ms 468 KB Output is correct
47 Correct 7 ms 468 KB Output is correct
48 Correct 6 ms 468 KB Output is correct
49 Correct 7 ms 468 KB Output is correct
50 Correct 7 ms 480 KB Output is correct
51 Correct 8 ms 488 KB Output is correct
52 Correct 6 ms 468 KB Output is correct
53 Correct 6 ms 468 KB Output is correct
54 Correct 6 ms 468 KB Output is correct
55 Correct 6 ms 468 KB Output is correct
56 Correct 5 ms 496 KB Output is correct
57 Correct 6 ms 468 KB Output is correct
58 Correct 6 ms 492 KB Output is correct
59 Correct 5 ms 468 KB Output is correct
60 Correct 5 ms 472 KB Output is correct
61 Correct 5 ms 468 KB Output is correct
62 Correct 4 ms 468 KB Output is correct
63 Correct 6 ms 508 KB Output is correct
64 Correct 5 ms 468 KB Output is correct
65 Correct 8 ms 472 KB Output is correct
66 Correct 7 ms 468 KB Output is correct
67 Correct 8 ms 468 KB Output is correct
68 Correct 7 ms 468 KB Output is correct
69 Correct 6 ms 484 KB Output is correct
70 Correct 8 ms 468 KB Output is correct
71 Correct 6 ms 468 KB Output is correct
72 Correct 6 ms 468 KB Output is correct
73 Correct 5 ms 480 KB Output is correct
74 Correct 1 ms 468 KB Output is correct
75 Correct 2260 ms 13176 KB Output is correct
76 Correct 1942 ms 15416 KB Output is correct
77 Correct 2455 ms 17852 KB Output is correct
78 Correct 2463 ms 17708 KB Output is correct
79 Correct 1235 ms 21860 KB Output is correct
80 Correct 1994 ms 20644 KB Output is correct
81 Correct 2622 ms 14532 KB Output is correct
82 Correct 2314 ms 13184 KB Output is correct
83 Correct 2774 ms 14428 KB Output is correct
84 Correct 2591 ms 14192 KB Output is correct
85 Correct 2647 ms 14464 KB Output is correct
86 Correct 2621 ms 17828 KB Output is correct
87 Correct 2562 ms 17468 KB Output is correct
88 Correct 2447 ms 14140 KB Output is correct
89 Correct 2695 ms 17500 KB Output is correct
90 Correct 2924 ms 19056 KB Output is correct
91 Correct 2508 ms 19012 KB Output is correct
92 Correct 2600 ms 18856 KB Output is correct
93 Correct 2713 ms 18972 KB Output is correct
94 Correct 2971 ms 19676 KB Output is correct
95 Correct 2940 ms 19272 KB Output is correct
96 Correct 1107 ms 14124 KB Output is correct
97 Correct 1156 ms 16956 KB Output is correct
98 Correct 1214 ms 14404 KB Output is correct
99 Correct 1143 ms 17292 KB Output is correct
100 Correct 1044 ms 17340 KB Output is correct
101 Correct 1129 ms 17084 KB Output is correct
102 Correct 1853 ms 13080 KB Output is correct
103 Correct 1741 ms 13428 KB Output is correct
104 Correct 1663 ms 13040 KB Output is correct
105 Correct 2119 ms 17216 KB Output is correct
106 Correct 2036 ms 17724 KB Output is correct
107 Correct 1931 ms 17752 KB Output is correct
108 Correct 2436 ms 17992 KB Output is correct
109 Correct 2731 ms 20292 KB Output is correct
110 Correct 1804 ms 16956 KB Output is correct
111 Correct 1816 ms 12864 KB Output is correct
112 Correct 1427 ms 15132 KB Output is correct
113 Correct 209 ms 22952 KB Output is correct