답안 #44042 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
44042	2018-03-29T12:45:23 Z	wxh010910	Construction of Highway (JOI18_construction)	C++17	100 / 100	294 ms	81272 KB

construction

#include <bits/stdc++.h>

using namespace std;

#define X first
#define Y second
#define mp make_pair
#define pb push_back
#define Debug(...) fprintf(stderr, __VA_ARGS__)

typedef long long LL;
typedef long double LD;
typedef unsigned int uint;
typedef pair <int, int> pii;
typedef unsigned long long uLL;

template <typename T> inline void Read(T &x) {
  char c = getchar();
  bool f = false;
  for (x = 0; !isdigit(c); c = getchar()) {
    if (c == '-') {
      f = true;
    }
  }
  for (; isdigit(c); c = getchar()) {
    x = x * 10 + c - '0';
  }
  if (f) {
    x = -x;
  }
}

template <typename T> inline bool CheckMax(T &a, const T &b) {
  return a < b ? a = b, true : false;
}

template <typename T> inline bool CheckMin(T &a, const T &b) {
  return a > b ? a = b, true : false;
}

const int N = 100005;

int n, top, c[N], d[N], f[N], siz[N], sta[N], val[N], chd[N][2];
vector <pii> seq;
LL ans, b[N];

inline bool IsRoot(int x) {
  return chd[f[x]][0] != x && chd[f[x]][1] != x;
}

inline void AddTag(int x, int y) {
  val[x] = c[x] = y;
}

inline void PushUp(int x) {
  siz[x] = siz[chd[x][0]] + siz[chd[x][1]] + 1;
}

inline void PushDown(int x) {
  if (val[x]) {
    AddTag(chd[x][0], val[x]), AddTag(chd[x][1], val[x]), val[x] = 0;
  }
}

inline void Rotate(int x) {
  int y = f[x], z = f[y], k = chd[y][1] == x;
  if (!IsRoot(y)) {
    chd[z][chd[z][1] == y] = x;
  }
  f[chd[y][k] = chd[x][!k]] = y;
  f[f[chd[x][!k] = y] = x] = z;
  PushUp(y), PushUp(x);
}

inline void Splay(int x) {
  sta[top = 1] = x;
  for (int i = x; !IsRoot(i); sta[++top] = i = f[i]);
  for (; top; PushDown(sta[top--]));
  for (int y = f[x], z = f[y]; !IsRoot(x); Rotate(x), y = f[x], z = f[y]) {
    if (!IsRoot(y)) {
      Rotate((chd[y][1] == x) == (chd[z][1] == y) ? y : x);
    }
  }
}

inline void Access(int x) {
  for (int t = 0; x; x = f[x]) {
    Splay(x), chd[x][1] = t, t = x, PushUp(x), seq.pb(mp(c[x], siz[x]));
  }
}

inline void Modify(int x, int y) {
  for (; x <= n; x += x & -x) {
    b[x] += y;
  }
}

inline LL Query(int x) {
  LL r = 0;
  for (; x; x -= x & -x) {
    r += b[x];
  }
  return r;
}

inline void Solve() {
  ans = 0;
  for (int i = seq.size() - 1; i; --i) {
    seq[i].Y -= seq[i - 1].Y;
  }
  for (int i = 0; i < seq.size(); ++i) {
    ans += 1LL * seq[i].Y * Query(seq[i].X - 1);
    Modify(seq[i].X, seq[i].Y);
  }
  printf("%lld\n", ans);
  for (int i = 0; i < seq.size(); ++i) {
    Modify(seq[i].X, -seq[i].Y);
  }
  seq.clear();
}

int main() {
#ifdef wxh010910
  freopen("d.in", "r", stdin);
#endif
  Read(n);
  for (int i = 1; i <= n; ++i) {
    Read(c[i]), d[i] = c[i], siz[i] = 1;
  }
  sort(d + 1, d + n + 1);
  for (int i = 1; i <= n; ++i) {
    c[i] = lower_bound(d + 1, d + n + 1, c[i]) - d;
  }
  for (int i = 1, x, y; i < n; ++i) {
    Read(x), Read(y);
    Access(x), Splay(x);
    AddTag(x, c[y]), f[y] = x, Solve();
  }
#ifdef wxh010910
  Debug("My Time: %.3lfms\n", (double)clock() / CLOCKS_PER_SEC);
#endif
  return 0;
}

Compilation message

construction.cpp: In function 'void Solve()':
construction.cpp:111:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; i < seq.size(); ++i) {
                   ~~^~~~~~~~~~~~
construction.cpp:116:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; i < seq.size(); ++i) {
                   ~~^~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	492 KB	Output is correct
3	Correct	2 ms	492 KB	Output is correct
4	Correct	2 ms	492 KB	Output is correct
5	Correct	2 ms	520 KB	Output is correct
6	Correct	2 ms	732 KB	Output is correct
7	Correct	2 ms	732 KB	Output is correct
8	Correct	2 ms	732 KB	Output is correct
9	Correct	3 ms	732 KB	Output is correct
10	Correct	2 ms	732 KB	Output is correct
11	Correct	2 ms	732 KB	Output is correct
12	Correct	2 ms	732 KB	Output is correct
13	Correct	2 ms	732 KB	Output is correct
14	Correct	2 ms	732 KB	Output is correct
15	Correct	2 ms	760 KB	Output is correct
16	Correct	2 ms	764 KB	Output is correct
17	Correct	2 ms	776 KB	Output is correct
18	Correct	2 ms	788 KB	Output is correct
19	Correct	3 ms	788 KB	Output is correct
20	Correct	3 ms	832 KB	Output is correct
21	Correct	2 ms	832 KB	Output is correct
22	Correct	2 ms	836 KB	Output is correct
23	Correct	2 ms	844 KB	Output is correct
24	Correct	2 ms	928 KB	Output is correct
25	Correct	2 ms	928 KB	Output is correct
26	Correct	2 ms	928 KB	Output is correct
27	Correct	2 ms	928 KB	Output is correct
28	Correct	2 ms	964 KB	Output is correct
29	Correct	2 ms	964 KB	Output is correct
30	Correct	2 ms	964 KB	Output is correct
31	Correct	2 ms	964 KB	Output is correct
32	Correct	2 ms	964 KB	Output is correct
33	Correct	2 ms	996 KB	Output is correct
34	Correct	2 ms	1004 KB	Output is correct
35	Correct	2 ms	1012 KB	Output is correct
36	Correct	2 ms	1020 KB	Output is correct
37	Correct	2 ms	1036 KB	Output is correct
38	Correct	2 ms	1044 KB	Output is correct
39	Correct	2 ms	1056 KB	Output is correct
40	Correct	2 ms	1060 KB	Output is correct
41	Correct	3 ms	1196 KB	Output is correct
42	Correct	2 ms	1196 KB	Output is correct
43	Correct	2 ms	1196 KB	Output is correct
44	Correct	2 ms	1196 KB	Output is correct

Subtask #2
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	492 KB	Output is correct
3	Correct	2 ms	492 KB	Output is correct
4	Correct	2 ms	492 KB	Output is correct
5	Correct	2 ms	520 KB	Output is correct
6	Correct	2 ms	732 KB	Output is correct
7	Correct	2 ms	732 KB	Output is correct
8	Correct	2 ms	732 KB	Output is correct
9	Correct	3 ms	732 KB	Output is correct
10	Correct	2 ms	732 KB	Output is correct
11	Correct	2 ms	732 KB	Output is correct
12	Correct	2 ms	732 KB	Output is correct
13	Correct	2 ms	732 KB	Output is correct
14	Correct	2 ms	732 KB	Output is correct
15	Correct	2 ms	760 KB	Output is correct
16	Correct	2 ms	764 KB	Output is correct
17	Correct	2 ms	776 KB	Output is correct
18	Correct	2 ms	788 KB	Output is correct
19	Correct	3 ms	788 KB	Output is correct
20	Correct	3 ms	832 KB	Output is correct
21	Correct	2 ms	832 KB	Output is correct
22	Correct	2 ms	836 KB	Output is correct
23	Correct	2 ms	844 KB	Output is correct
24	Correct	2 ms	928 KB	Output is correct
25	Correct	2 ms	928 KB	Output is correct
26	Correct	2 ms	928 KB	Output is correct
27	Correct	2 ms	928 KB	Output is correct
28	Correct	2 ms	964 KB	Output is correct
29	Correct	2 ms	964 KB	Output is correct
30	Correct	2 ms	964 KB	Output is correct
31	Correct	2 ms	964 KB	Output is correct
32	Correct	2 ms	964 KB	Output is correct
33	Correct	2 ms	996 KB	Output is correct
34	Correct	2 ms	1004 KB	Output is correct
35	Correct	2 ms	1012 KB	Output is correct
36	Correct	2 ms	1020 KB	Output is correct
37	Correct	2 ms	1036 KB	Output is correct
38	Correct	2 ms	1044 KB	Output is correct
39	Correct	2 ms	1056 KB	Output is correct
40	Correct	2 ms	1060 KB	Output is correct
41	Correct	3 ms	1196 KB	Output is correct
42	Correct	2 ms	1196 KB	Output is correct
43	Correct	2 ms	1196 KB	Output is correct
44	Correct	2 ms	1196 KB	Output is correct
45	Correct	4 ms	1196 KB	Output is correct
46	Correct	6 ms	1388 KB	Output is correct
47	Correct	6 ms	1388 KB	Output is correct
48	Correct	8 ms	1548 KB	Output is correct
49	Correct	5 ms	1548 KB	Output is correct
50	Correct	4 ms	1592 KB	Output is correct
51	Correct	4 ms	1668 KB	Output is correct
52	Correct	6 ms	1872 KB	Output is correct
53	Correct	5 ms	1932 KB	Output is correct
54	Correct	6 ms	2008 KB	Output is correct
55	Correct	5 ms	2084 KB	Output is correct
56	Correct	6 ms	2128 KB	Output is correct
57	Correct	10 ms	2204 KB	Output is correct
58	Correct	8 ms	2284 KB	Output is correct
59	Correct	7 ms	2364 KB	Output is correct
60	Correct	7 ms	2444 KB	Output is correct
61	Correct	5 ms	2520 KB	Output is correct
62	Correct	6 ms	2520 KB	Output is correct
63	Correct	5 ms	2560 KB	Output is correct
64	Correct	7 ms	2636 KB	Output is correct
65	Correct	5 ms	2736 KB	Output is correct
66	Correct	6 ms	2736 KB	Output is correct
67	Correct	6 ms	2788 KB	Output is correct
68	Correct	4 ms	2840 KB	Output is correct
69	Correct	5 ms	3020 KB	Output is correct
70	Correct	4 ms	3068 KB	Output is correct
71	Correct	4 ms	3068 KB	Output is correct
72	Correct	7 ms	3068 KB	Output is correct
73	Correct	7 ms	3100 KB	Output is correct
74	Correct	5 ms	3180 KB	Output is correct
75	Correct	4 ms	3196 KB	Output is correct
76	Correct	4 ms	3268 KB	Output is correct
77	Correct	4 ms	3324 KB	Output is correct
78	Correct	4 ms	3388 KB	Output is correct
79	Correct	5 ms	3436 KB	Output is correct
80	Correct	4 ms	3516 KB	Output is correct
81	Correct	5 ms	3600 KB	Output is correct
82	Correct	5 ms	3676 KB	Output is correct
83	Correct	5 ms	3880 KB	Output is correct
84	Correct	5 ms	3880 KB	Output is correct
85	Correct	5 ms	3880 KB	Output is correct
86	Correct	5 ms	3880 KB	Output is correct

Subtask #3
84.0 / 84.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	492 KB	Output is correct
3	Correct	2 ms	492 KB	Output is correct
4	Correct	2 ms	492 KB	Output is correct
5	Correct	2 ms	520 KB	Output is correct
6	Correct	2 ms	732 KB	Output is correct
7	Correct	2 ms	732 KB	Output is correct
8	Correct	2 ms	732 KB	Output is correct
9	Correct	3 ms	732 KB	Output is correct
10	Correct	2 ms	732 KB	Output is correct
11	Correct	2 ms	732 KB	Output is correct
12	Correct	2 ms	732 KB	Output is correct
13	Correct	2 ms	732 KB	Output is correct
14	Correct	2 ms	732 KB	Output is correct
15	Correct	2 ms	760 KB	Output is correct
16	Correct	2 ms	764 KB	Output is correct
17	Correct	2 ms	776 KB	Output is correct
18	Correct	2 ms	788 KB	Output is correct
19	Correct	3 ms	788 KB	Output is correct
20	Correct	3 ms	832 KB	Output is correct
21	Correct	2 ms	832 KB	Output is correct
22	Correct	2 ms	836 KB	Output is correct
23	Correct	2 ms	844 KB	Output is correct
24	Correct	2 ms	928 KB	Output is correct
25	Correct	2 ms	928 KB	Output is correct
26	Correct	2 ms	928 KB	Output is correct
27	Correct	2 ms	928 KB	Output is correct
28	Correct	2 ms	964 KB	Output is correct
29	Correct	2 ms	964 KB	Output is correct
30	Correct	2 ms	964 KB	Output is correct
31	Correct	2 ms	964 KB	Output is correct
32	Correct	2 ms	964 KB	Output is correct
33	Correct	2 ms	996 KB	Output is correct
34	Correct	2 ms	1004 KB	Output is correct
35	Correct	2 ms	1012 KB	Output is correct
36	Correct	2 ms	1020 KB	Output is correct
37	Correct	2 ms	1036 KB	Output is correct
38	Correct	2 ms	1044 KB	Output is correct
39	Correct	2 ms	1056 KB	Output is correct
40	Correct	2 ms	1060 KB	Output is correct
41	Correct	3 ms	1196 KB	Output is correct
42	Correct	2 ms	1196 KB	Output is correct
43	Correct	2 ms	1196 KB	Output is correct
44	Correct	2 ms	1196 KB	Output is correct
45	Correct	4 ms	1196 KB	Output is correct
46	Correct	6 ms	1388 KB	Output is correct
47	Correct	6 ms	1388 KB	Output is correct
48	Correct	8 ms	1548 KB	Output is correct
49	Correct	5 ms	1548 KB	Output is correct
50	Correct	4 ms	1592 KB	Output is correct
51	Correct	4 ms	1668 KB	Output is correct
52	Correct	6 ms	1872 KB	Output is correct
53	Correct	5 ms	1932 KB	Output is correct
54	Correct	6 ms	2008 KB	Output is correct
55	Correct	5 ms	2084 KB	Output is correct
56	Correct	6 ms	2128 KB	Output is correct
57	Correct	10 ms	2204 KB	Output is correct
58	Correct	8 ms	2284 KB	Output is correct
59	Correct	7 ms	2364 KB	Output is correct
60	Correct	7 ms	2444 KB	Output is correct
61	Correct	5 ms	2520 KB	Output is correct
62	Correct	6 ms	2520 KB	Output is correct
63	Correct	5 ms	2560 KB	Output is correct
64	Correct	7 ms	2636 KB	Output is correct
65	Correct	5 ms	2736 KB	Output is correct
66	Correct	6 ms	2736 KB	Output is correct
67	Correct	6 ms	2788 KB	Output is correct
68	Correct	4 ms	2840 KB	Output is correct
69	Correct	5 ms	3020 KB	Output is correct
70	Correct	4 ms	3068 KB	Output is correct
71	Correct	4 ms	3068 KB	Output is correct
72	Correct	7 ms	3068 KB	Output is correct
73	Correct	7 ms	3100 KB	Output is correct
74	Correct	5 ms	3180 KB	Output is correct
75	Correct	4 ms	3196 KB	Output is correct
76	Correct	4 ms	3268 KB	Output is correct
77	Correct	4 ms	3324 KB	Output is correct
78	Correct	4 ms	3388 KB	Output is correct
79	Correct	5 ms	3436 KB	Output is correct
80	Correct	4 ms	3516 KB	Output is correct
81	Correct	5 ms	3600 KB	Output is correct
82	Correct	5 ms	3676 KB	Output is correct
83	Correct	5 ms	3880 KB	Output is correct
84	Correct	5 ms	3880 KB	Output is correct
85	Correct	5 ms	3880 KB	Output is correct
86	Correct	5 ms	3880 KB	Output is correct
87	Correct	14 ms	4252 KB	Output is correct
88	Correct	46 ms	5596 KB	Output is correct
89	Correct	189 ms	10568 KB	Output is correct
90	Correct	200 ms	12560 KB	Output is correct
91	Correct	194 ms	14788 KB	Output is correct
92	Correct	108 ms	16664 KB	Output is correct
93	Correct	77 ms	18840 KB	Output is correct
94	Correct	86 ms	21028 KB	Output is correct
95	Correct	94 ms	23372 KB	Output is correct
96	Correct	87 ms	25524 KB	Output is correct
97	Correct	98 ms	27632 KB	Output is correct
98	Correct	94 ms	29680 KB	Output is correct
99	Correct	90 ms	31496 KB	Output is correct
100	Correct	249 ms	33044 KB	Output is correct
101	Correct	286 ms	35080 KB	Output is correct
102	Correct	282 ms	37128 KB	Output is correct
103	Correct	294 ms	39448 KB	Output is correct
104	Correct	158 ms	41560 KB	Output is correct
105	Correct	156 ms	43740 KB	Output is correct
106	Correct	165 ms	45708 KB	Output is correct
107	Correct	151 ms	46376 KB	Output is correct
108	Correct	156 ms	48216 KB	Output is correct
109	Correct	177 ms	50136 KB	Output is correct
110	Correct	71 ms	51584 KB	Output is correct
111	Correct	108 ms	53960 KB	Output is correct
112	Correct	77 ms	55532 KB	Output is correct
113	Correct	77 ms	56756 KB	Output is correct
114	Correct	257 ms	58172 KB	Output is correct
115	Correct	277 ms	59772 KB	Output is correct
116	Correct	145 ms	61396 KB	Output is correct
117	Correct	83 ms	63044 KB	Output is correct
118	Correct	91 ms	64816 KB	Output is correct
119	Correct	119 ms	66820 KB	Output is correct
120	Correct	78 ms	68148 KB	Output is correct
121	Correct	83 ms	69800 KB	Output is correct
122	Correct	96 ms	71180 KB	Output is correct
123	Correct	169 ms	73200 KB	Output is correct
124	Correct	166 ms	75068 KB	Output is correct
125	Correct	172 ms	76820 KB	Output is correct
126	Correct	198 ms	78340 KB	Output is correct
127	Correct	165 ms	79848 KB	Output is correct
128	Correct	149 ms	81272 KB	Output is correct

답안 #44042

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 9.0 / 9.0

Subtask #3 84.0 / 84.0

Subtask #1
7.0 / 7.0

Subtask #2
9.0 / 9.0

Subtask #3
84.0 / 84.0