#include <cstdio>
#include <cstdlib>
#include <cassert>
#include <cstring>
#include <iostream>
#include <cmath>
#include <deque>
#include <queue>
#include <stack>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <complex>
#define mp(a, b) make_pair((a), (b))
#define pb(a) push_back((a))
#define pf(a) push_font((a))
#define rb() pop_back()
#define rf() pop_front()
#define sz(a) ((int)a.size())
using namespace std;
typedef long long lld;
typedef pair<int, int> pii;
typedef pair<lld, lld> pll;
typedef pair<lld, int> pli;
typedef pair<int, lld> pil;
typedef vector<vector<int>> Matrix;
typedef vector<vector<int>> Adj;
typedef vector<int> Row;
typedef complex<double> Complex;
typedef vector<Complex> Vcomplex;
const int MOD = 1e9 + 7;
const int INF = 1e9;
const lld LINF = 1e18;
const double FINF = 1e15;
const double EPS = 1e-9;
const double PI = 2.0 * acos(0.0);
lld D[200005][2][2];
int pl[200005][2][2];
int pr[200005][2][2];
int n;
int a[200005][3];
int vis[200005];
vector<int> adj[200005];
vector<int> ord;
inline void asmax(lld& x, lld y) {
if (x < y) x = y;
}
inline void asmax(int i1, int a1, int b1, int i2, int a2, int b2) {
if (D[i1][a1][b1] < D[i2][a2][b2] + a[i1][a1 + b1]) {
D[i1][a1][b1] = D[i2][a2][b2] + a[i1][a1 + b1];
pl[i1][a1][b1] = a2;
pr[i1][a1][b1] = b2;
}
}
void dfs(int cur) {
vis[cur] = true;
for (int nxt : adj[cur]) {
if (!vis[nxt]) dfs(nxt);
}
ord.pb(cur);
}
int main() {
scanf("%d", &n);
for (int i = 1; i <= n; ++i) {
for (int j = 0; j < 3; ++j) {
scanf("%d", &a[i][j]);
}
}
for (int i = 0; i <= n; ++i) {
for (int j = 0; j < 2; ++j) {
for (int k = 0; k < 2; ++k) {
D[i][j][k] = -LINF;
}
}
}
D[0][0][1] = 0;
for (int i = 0; i < n; ++i) {
asmax(i+1, 1, 0, i, 1, 0);
asmax(i+1, 1, 1, i, 1, 0);
asmax(i+1, 1, 0, i, 0, 0);
asmax(i+1, 1, 1, i, 0, 0);
asmax(i+1, 0, 0, i, 0, 1);
asmax(i+1, 0, 1, i, 0, 1);
asmax(i+1, 0, 0, i, 1, 1);
asmax(i+1, 0, 1, i, 1, 1);
/*
asmax(D[i+1][1][0], D[i][1][0] + b[i+1]); //i -> i+1
asmax(D[i+1][1][1], D[i][1][0] + c[i+1]);
asmax(D[i+1][1][0], D[i][0][0] + b[i+1]);
asmax(D[i+1][1][1], D[i][0][0] + c[i+1]);
asmax(D[i+1][0][0], D[i][0][1] + a[i+1]); //i+1 -> i
asmax(D[i+1][0][1], D[i][0][1] + b[i+1]);
asmax(D[i+1][0][0], D[i][1][1] + a[i+1]);
asmax(D[i+1][0][1], D[i][1][1] + b[i+1]);
*/
}
lld ans = max(D[n][1][0], D[n][0][0]);
int cur = n;
int l = (ans == D[n][1][0]), r = 0;
while (cur > 1) {
if (l == 1) {
adj[cur-1].pb(cur);
} else {
adj[cur].pb(cur-1);
}
int nl = pl[cur][l][r];
int nr = pr[cur][l][r];
l = nl;
r = nr;
--cur;
}
for (int i = 1; i <= n; ++i) if (!vis[i]) dfs(i);
printf("%lld\n", ans);
for (int i = n-1; i >= 0; --i) {
printf("%d ", ord[i]);
}
}
Compilation message
space.cpp: In function 'int main()':
space.cpp:72:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &n);
^
space.cpp:75:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &a[i][j]);
^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
22332 KB |
Output is correct |
2 |
Correct |
0 ms |
22332 KB |
Output is correct |
3 |
Correct |
0 ms |
22332 KB |
Output is correct |
4 |
Correct |
0 ms |
22332 KB |
Output is correct |
5 |
Correct |
3 ms |
22332 KB |
Output is correct |
6 |
Correct |
0 ms |
22332 KB |
Output is correct |
7 |
Correct |
3 ms |
22332 KB |
Output is correct |
8 |
Correct |
0 ms |
22332 KB |
Output is correct |
9 |
Correct |
0 ms |
22332 KB |
Output is correct |
10 |
Correct |
0 ms |
22332 KB |
Output is correct |
11 |
Correct |
3 ms |
22332 KB |
Output is correct |
12 |
Correct |
0 ms |
22332 KB |
Output is correct |
13 |
Correct |
0 ms |
22332 KB |
Output is correct |
14 |
Correct |
0 ms |
22332 KB |
Output is correct |
15 |
Correct |
0 ms |
22332 KB |
Output is correct |
16 |
Correct |
3 ms |
22332 KB |
Output is correct |
17 |
Correct |
3 ms |
22332 KB |
Output is correct |
18 |
Correct |
0 ms |
22332 KB |
Output is correct |
19 |
Correct |
3 ms |
22332 KB |
Output is correct |
20 |
Correct |
0 ms |
22332 KB |
Output is correct |
21 |
Correct |
0 ms |
22332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
22332 KB |
Output is correct |
2 |
Correct |
0 ms |
22332 KB |
Output is correct |
3 |
Correct |
0 ms |
22332 KB |
Output is correct |
4 |
Correct |
0 ms |
22332 KB |
Output is correct |
5 |
Correct |
3 ms |
22332 KB |
Output is correct |
6 |
Correct |
0 ms |
22332 KB |
Output is correct |
7 |
Correct |
3 ms |
22332 KB |
Output is correct |
8 |
Correct |
0 ms |
22332 KB |
Output is correct |
9 |
Correct |
0 ms |
22332 KB |
Output is correct |
10 |
Correct |
0 ms |
22332 KB |
Output is correct |
11 |
Correct |
3 ms |
22332 KB |
Output is correct |
12 |
Correct |
0 ms |
22332 KB |
Output is correct |
13 |
Correct |
0 ms |
22332 KB |
Output is correct |
14 |
Correct |
0 ms |
22332 KB |
Output is correct |
15 |
Correct |
0 ms |
22332 KB |
Output is correct |
16 |
Correct |
3 ms |
22332 KB |
Output is correct |
17 |
Correct |
3 ms |
22332 KB |
Output is correct |
18 |
Correct |
0 ms |
22332 KB |
Output is correct |
19 |
Correct |
3 ms |
22332 KB |
Output is correct |
20 |
Correct |
0 ms |
22332 KB |
Output is correct |
21 |
Correct |
0 ms |
22332 KB |
Output is correct |
22 |
Correct |
0 ms |
22332 KB |
Output is correct |
23 |
Correct |
3 ms |
22332 KB |
Output is correct |
24 |
Correct |
0 ms |
22332 KB |
Output is correct |
25 |
Correct |
0 ms |
22332 KB |
Output is correct |
26 |
Correct |
3 ms |
22332 KB |
Output is correct |
27 |
Correct |
0 ms |
22332 KB |
Output is correct |
28 |
Correct |
0 ms |
22332 KB |
Output is correct |
29 |
Correct |
0 ms |
22332 KB |
Output is correct |
30 |
Correct |
0 ms |
22332 KB |
Output is correct |
31 |
Correct |
3 ms |
22332 KB |
Output is correct |
32 |
Correct |
3 ms |
22332 KB |
Output is correct |
33 |
Correct |
0 ms |
22332 KB |
Output is correct |
34 |
Correct |
0 ms |
22332 KB |
Output is correct |
35 |
Correct |
0 ms |
22332 KB |
Output is correct |
36 |
Correct |
3 ms |
22332 KB |
Output is correct |
37 |
Correct |
0 ms |
22332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
22332 KB |
Output is correct |
2 |
Correct |
0 ms |
22332 KB |
Output is correct |
3 |
Correct |
0 ms |
22332 KB |
Output is correct |
4 |
Correct |
0 ms |
22332 KB |
Output is correct |
5 |
Correct |
3 ms |
22332 KB |
Output is correct |
6 |
Correct |
0 ms |
22332 KB |
Output is correct |
7 |
Correct |
3 ms |
22332 KB |
Output is correct |
8 |
Correct |
0 ms |
22332 KB |
Output is correct |
9 |
Correct |
0 ms |
22332 KB |
Output is correct |
10 |
Correct |
0 ms |
22332 KB |
Output is correct |
11 |
Correct |
3 ms |
22332 KB |
Output is correct |
12 |
Correct |
0 ms |
22332 KB |
Output is correct |
13 |
Correct |
0 ms |
22332 KB |
Output is correct |
14 |
Correct |
0 ms |
22332 KB |
Output is correct |
15 |
Correct |
0 ms |
22332 KB |
Output is correct |
16 |
Correct |
3 ms |
22332 KB |
Output is correct |
17 |
Correct |
3 ms |
22332 KB |
Output is correct |
18 |
Correct |
0 ms |
22332 KB |
Output is correct |
19 |
Correct |
3 ms |
22332 KB |
Output is correct |
20 |
Correct |
0 ms |
22332 KB |
Output is correct |
21 |
Correct |
0 ms |
22332 KB |
Output is correct |
22 |
Correct |
0 ms |
22332 KB |
Output is correct |
23 |
Correct |
3 ms |
22332 KB |
Output is correct |
24 |
Correct |
0 ms |
22332 KB |
Output is correct |
25 |
Correct |
0 ms |
22332 KB |
Output is correct |
26 |
Correct |
3 ms |
22332 KB |
Output is correct |
27 |
Correct |
0 ms |
22332 KB |
Output is correct |
28 |
Correct |
0 ms |
22332 KB |
Output is correct |
29 |
Correct |
0 ms |
22332 KB |
Output is correct |
30 |
Correct |
0 ms |
22332 KB |
Output is correct |
31 |
Correct |
3 ms |
22332 KB |
Output is correct |
32 |
Correct |
3 ms |
22332 KB |
Output is correct |
33 |
Correct |
0 ms |
22332 KB |
Output is correct |
34 |
Correct |
0 ms |
22332 KB |
Output is correct |
35 |
Correct |
0 ms |
22332 KB |
Output is correct |
36 |
Correct |
3 ms |
22332 KB |
Output is correct |
37 |
Correct |
0 ms |
22332 KB |
Output is correct |
38 |
Correct |
0 ms |
22332 KB |
Output is correct |
39 |
Correct |
3 ms |
22332 KB |
Output is correct |
40 |
Correct |
0 ms |
22332 KB |
Output is correct |
41 |
Correct |
0 ms |
22332 KB |
Output is correct |
42 |
Correct |
3 ms |
22332 KB |
Output is correct |
43 |
Correct |
0 ms |
22332 KB |
Output is correct |
44 |
Correct |
0 ms |
22332 KB |
Output is correct |
45 |
Correct |
0 ms |
22332 KB |
Output is correct |
46 |
Correct |
3 ms |
22332 KB |
Output is correct |
47 |
Correct |
0 ms |
22332 KB |
Output is correct |
48 |
Correct |
0 ms |
22332 KB |
Output is correct |
49 |
Correct |
3 ms |
22332 KB |
Output is correct |
50 |
Correct |
3 ms |
22332 KB |
Output is correct |
51 |
Correct |
0 ms |
22332 KB |
Output is correct |
52 |
Correct |
3 ms |
22332 KB |
Output is correct |
53 |
Correct |
3 ms |
22332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
22332 KB |
Output is correct |
2 |
Correct |
0 ms |
22332 KB |
Output is correct |
3 |
Correct |
0 ms |
22332 KB |
Output is correct |
4 |
Correct |
0 ms |
22332 KB |
Output is correct |
5 |
Correct |
3 ms |
22332 KB |
Output is correct |
6 |
Correct |
0 ms |
22332 KB |
Output is correct |
7 |
Correct |
3 ms |
22332 KB |
Output is correct |
8 |
Correct |
0 ms |
22332 KB |
Output is correct |
9 |
Correct |
0 ms |
22332 KB |
Output is correct |
10 |
Correct |
0 ms |
22332 KB |
Output is correct |
11 |
Correct |
3 ms |
22332 KB |
Output is correct |
12 |
Correct |
0 ms |
22332 KB |
Output is correct |
13 |
Correct |
0 ms |
22332 KB |
Output is correct |
14 |
Correct |
0 ms |
22332 KB |
Output is correct |
15 |
Correct |
0 ms |
22332 KB |
Output is correct |
16 |
Correct |
3 ms |
22332 KB |
Output is correct |
17 |
Correct |
3 ms |
22332 KB |
Output is correct |
18 |
Correct |
0 ms |
22332 KB |
Output is correct |
19 |
Correct |
3 ms |
22332 KB |
Output is correct |
20 |
Correct |
0 ms |
22332 KB |
Output is correct |
21 |
Correct |
0 ms |
22332 KB |
Output is correct |
22 |
Correct |
0 ms |
22332 KB |
Output is correct |
23 |
Correct |
3 ms |
22332 KB |
Output is correct |
24 |
Correct |
0 ms |
22332 KB |
Output is correct |
25 |
Correct |
0 ms |
22332 KB |
Output is correct |
26 |
Correct |
3 ms |
22332 KB |
Output is correct |
27 |
Correct |
0 ms |
22332 KB |
Output is correct |
28 |
Correct |
0 ms |
22332 KB |
Output is correct |
29 |
Correct |
0 ms |
22332 KB |
Output is correct |
30 |
Correct |
0 ms |
22332 KB |
Output is correct |
31 |
Correct |
3 ms |
22332 KB |
Output is correct |
32 |
Correct |
3 ms |
22332 KB |
Output is correct |
33 |
Correct |
0 ms |
22332 KB |
Output is correct |
34 |
Correct |
0 ms |
22332 KB |
Output is correct |
35 |
Correct |
0 ms |
22332 KB |
Output is correct |
36 |
Correct |
3 ms |
22332 KB |
Output is correct |
37 |
Correct |
0 ms |
22332 KB |
Output is correct |
38 |
Correct |
0 ms |
22332 KB |
Output is correct |
39 |
Correct |
3 ms |
22332 KB |
Output is correct |
40 |
Correct |
0 ms |
22332 KB |
Output is correct |
41 |
Correct |
0 ms |
22332 KB |
Output is correct |
42 |
Correct |
3 ms |
22332 KB |
Output is correct |
43 |
Correct |
0 ms |
22332 KB |
Output is correct |
44 |
Correct |
0 ms |
22332 KB |
Output is correct |
45 |
Correct |
0 ms |
22332 KB |
Output is correct |
46 |
Correct |
3 ms |
22332 KB |
Output is correct |
47 |
Correct |
0 ms |
22332 KB |
Output is correct |
48 |
Correct |
0 ms |
22332 KB |
Output is correct |
49 |
Correct |
3 ms |
22332 KB |
Output is correct |
50 |
Correct |
3 ms |
22332 KB |
Output is correct |
51 |
Correct |
0 ms |
22332 KB |
Output is correct |
52 |
Correct |
3 ms |
22332 KB |
Output is correct |
53 |
Correct |
3 ms |
22332 KB |
Output is correct |
54 |
Correct |
0 ms |
22332 KB |
Output is correct |
55 |
Correct |
6 ms |
22760 KB |
Output is correct |
56 |
Correct |
9 ms |
23072 KB |
Output is correct |
57 |
Correct |
6 ms |
22760 KB |
Output is correct |
58 |
Correct |
6 ms |
22760 KB |
Output is correct |
59 |
Correct |
6 ms |
22760 KB |
Output is correct |
60 |
Correct |
13 ms |
22760 KB |
Output is correct |
61 |
Correct |
6 ms |
23072 KB |
Output is correct |
62 |
Correct |
6 ms |
22600 KB |
Output is correct |
63 |
Correct |
0 ms |
22468 KB |
Output is correct |
64 |
Correct |
6 ms |
22760 KB |
Output is correct |
65 |
Correct |
9 ms |
22728 KB |
Output is correct |
66 |
Correct |
9 ms |
22760 KB |
Output is correct |
67 |
Correct |
3 ms |
22464 KB |
Output is correct |
68 |
Correct |
0 ms |
22464 KB |
Output is correct |
69 |
Correct |
6 ms |
22596 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
22332 KB |
Output is correct |
2 |
Correct |
0 ms |
22332 KB |
Output is correct |
3 |
Correct |
0 ms |
22332 KB |
Output is correct |
4 |
Correct |
0 ms |
22332 KB |
Output is correct |
5 |
Correct |
3 ms |
22332 KB |
Output is correct |
6 |
Correct |
0 ms |
22332 KB |
Output is correct |
7 |
Correct |
3 ms |
22332 KB |
Output is correct |
8 |
Correct |
0 ms |
22332 KB |
Output is correct |
9 |
Correct |
0 ms |
22332 KB |
Output is correct |
10 |
Correct |
0 ms |
22332 KB |
Output is correct |
11 |
Correct |
3 ms |
22332 KB |
Output is correct |
12 |
Correct |
0 ms |
22332 KB |
Output is correct |
13 |
Correct |
0 ms |
22332 KB |
Output is correct |
14 |
Correct |
0 ms |
22332 KB |
Output is correct |
15 |
Correct |
0 ms |
22332 KB |
Output is correct |
16 |
Correct |
3 ms |
22332 KB |
Output is correct |
17 |
Correct |
3 ms |
22332 KB |
Output is correct |
18 |
Correct |
0 ms |
22332 KB |
Output is correct |
19 |
Correct |
3 ms |
22332 KB |
Output is correct |
20 |
Correct |
0 ms |
22332 KB |
Output is correct |
21 |
Correct |
0 ms |
22332 KB |
Output is correct |
22 |
Correct |
0 ms |
22332 KB |
Output is correct |
23 |
Correct |
3 ms |
22332 KB |
Output is correct |
24 |
Correct |
0 ms |
22332 KB |
Output is correct |
25 |
Correct |
0 ms |
22332 KB |
Output is correct |
26 |
Correct |
3 ms |
22332 KB |
Output is correct |
27 |
Correct |
0 ms |
22332 KB |
Output is correct |
28 |
Correct |
0 ms |
22332 KB |
Output is correct |
29 |
Correct |
0 ms |
22332 KB |
Output is correct |
30 |
Correct |
0 ms |
22332 KB |
Output is correct |
31 |
Correct |
3 ms |
22332 KB |
Output is correct |
32 |
Correct |
3 ms |
22332 KB |
Output is correct |
33 |
Correct |
0 ms |
22332 KB |
Output is correct |
34 |
Correct |
0 ms |
22332 KB |
Output is correct |
35 |
Correct |
0 ms |
22332 KB |
Output is correct |
36 |
Correct |
3 ms |
22332 KB |
Output is correct |
37 |
Correct |
0 ms |
22332 KB |
Output is correct |
38 |
Correct |
0 ms |
22332 KB |
Output is correct |
39 |
Correct |
3 ms |
22332 KB |
Output is correct |
40 |
Correct |
0 ms |
22332 KB |
Output is correct |
41 |
Correct |
0 ms |
22332 KB |
Output is correct |
42 |
Correct |
3 ms |
22332 KB |
Output is correct |
43 |
Correct |
0 ms |
22332 KB |
Output is correct |
44 |
Correct |
0 ms |
22332 KB |
Output is correct |
45 |
Correct |
0 ms |
22332 KB |
Output is correct |
46 |
Correct |
3 ms |
22332 KB |
Output is correct |
47 |
Correct |
0 ms |
22332 KB |
Output is correct |
48 |
Correct |
0 ms |
22332 KB |
Output is correct |
49 |
Correct |
3 ms |
22332 KB |
Output is correct |
50 |
Correct |
3 ms |
22332 KB |
Output is correct |
51 |
Correct |
0 ms |
22332 KB |
Output is correct |
52 |
Correct |
3 ms |
22332 KB |
Output is correct |
53 |
Correct |
3 ms |
22332 KB |
Output is correct |
54 |
Correct |
0 ms |
22332 KB |
Output is correct |
55 |
Correct |
6 ms |
22760 KB |
Output is correct |
56 |
Correct |
9 ms |
23072 KB |
Output is correct |
57 |
Correct |
6 ms |
22760 KB |
Output is correct |
58 |
Correct |
6 ms |
22760 KB |
Output is correct |
59 |
Correct |
6 ms |
22760 KB |
Output is correct |
60 |
Correct |
13 ms |
22760 KB |
Output is correct |
61 |
Correct |
6 ms |
23072 KB |
Output is correct |
62 |
Correct |
6 ms |
22600 KB |
Output is correct |
63 |
Correct |
0 ms |
22468 KB |
Output is correct |
64 |
Correct |
6 ms |
22760 KB |
Output is correct |
65 |
Correct |
9 ms |
22728 KB |
Output is correct |
66 |
Correct |
9 ms |
22760 KB |
Output is correct |
67 |
Correct |
3 ms |
22464 KB |
Output is correct |
68 |
Correct |
0 ms |
22464 KB |
Output is correct |
69 |
Correct |
6 ms |
22596 KB |
Output is correct |
70 |
Correct |
6 ms |
22760 KB |
Output is correct |
71 |
Correct |
146 ms |
28440 KB |
Output is correct |
72 |
Correct |
116 ms |
39452 KB |
Output is correct |
73 |
Correct |
136 ms |
28444 KB |
Output is correct |
74 |
Correct |
99 ms |
30204 KB |
Output is correct |
75 |
Correct |
146 ms |
28444 KB |
Output is correct |
76 |
Correct |
163 ms |
28444 KB |
Output is correct |
77 |
Correct |
59 ms |
25024 KB |
Output is correct |
78 |
Correct |
159 ms |
28436 KB |
Output is correct |
79 |
Correct |
146 ms |
28444 KB |
Output is correct |
80 |
Correct |
149 ms |
39456 KB |
Output is correct |
81 |
Correct |
26 ms |
23696 KB |
Output is correct |
82 |
Correct |
96 ms |
26976 KB |
Output is correct |
83 |
Correct |
143 ms |
28448 KB |
Output is correct |
84 |
Correct |
146 ms |
28440 KB |
Output is correct |
85 |
Correct |
143 ms |
28444 KB |
Output is correct |
86 |
Correct |
136 ms |
28444 KB |
Output is correct |
87 |
Correct |
143 ms |
27076 KB |
Output is correct |
88 |
Correct |
23 ms |
23256 KB |
Output is correct |
89 |
Correct |
83 ms |
25724 KB |
Output is correct |
90 |
Correct |
46 ms |
26308 KB |
Output is correct |
91 |
Correct |
6 ms |
22728 KB |
Output is correct |
92 |
Correct |
63 ms |
26308 KB |
Output is correct |