답안 #85966 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
85966	2018-11-23T13:05:50 Z	bash	Construction of Highway (JOI18_construction)	C++17	100 / 100	576 ms	111228 KB

construction

/**
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*/
#include <cstring>
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <queue>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <cassert>

#define F first
#define S second
#define endl '\n'
#define deb(x) cout<<#x<<' '<<x<<endl;
#define pb push_back

/*
#ifdef IZI_KATKA
#define int __int64_t
#else
#define int __int64
#endif
*/

const long long MOD = 1e9 + 7;
const long long MAXN = 1e5 + 1;
using namespace std;

typedef long long ll;

long long readInt() {
    bool minus1 = false;
    long long result = 0;
    char ch;
    ch = getchar();
    while (true) {
        if (ch == '-') break;
        if (ch >= '0' && ch <= '9') break;
        ch = getchar();
    }
    if (ch == '-') minus1 = true; else result = ch-'0';
    while (true) {
        ch = getchar();
        if (ch < '0' || ch > '9') break;
        result = result*10 + (ch - '0');
    }
    if (minus1)
        return -result;
    else
        return result;
}

deque <pair <int, int> > chain[MAXN];
vector <int> g[MAXN];
int par[MAXN];
int deg[MAXN];
int nxt[MAXN];
int in[MAXN];
int out[MAXN];
int a[MAXN];
int sz[MAXN];


void dfs_sz(int v = 1) {
	sz[v] = 1;
	for (int &i : g[v]) {
		par[i] = v;
		deg[i] = deg[v] + 1;
		dfs_sz(i);
		sz[v] += sz[i];
		if (sz[i] > sz[g[v][0]]) {
			swap(i, g[v][0]);
		}
	}
}

void dfs_hld(int v = 1) {
	for (int i : g[v]) {
		nxt[i] = (i == g[v][0] ? nxt[v] : i);
		dfs_hld(i);
	}
}


int fen[MAXN];
int N;

void init(int n)
{
	N = n;
	for(int i = 0; i <= N; i++) fen[i] = 0;
}

void update(int pos, int v)
{
	pos++;
	for(;pos <= N;pos += (pos&(-pos)))
	{
		fen[pos] += v;
	}
}


int query(int pos)
{
	pos++;
	int sum = 0;
	for(;pos; pos -= (pos&(-pos)))
	{
		sum += fen[pos];
	}
	return sum;
}


ll calc_path(int u) {
	vector <pair <int, int> > V;
	vector <int> coord;
	while(u != -1) {
		int next_u = nxt[u];
		int Sz = deg[u] - deg[next_u] + 1;
		vector <pair <int, int> > tmp;
		for (int i = 0; i < chain[next_u].size(); i++) {
			int cnt = chain[next_u][i].first;
			int v = chain[next_u][i].second;
			if (cnt <= Sz) {
				tmp.pb({cnt, v});
				Sz -= cnt;
			} else {
				tmp.pb({Sz, v});
				break;
			}
		}
		for(int i = int(tmp.size()) - 1; i >= 0; i--) {
			V.pb(tmp[i]);
			coord.pb(tmp[i].second);
		}
		u = par[next_u];
	}
	reverse(V.begin(), V.end());
	sort(coord.begin(), coord.end());
	coord.erase(unique(coord.begin(), coord.end()), coord.end());
	init(int(coord.size()));
	ll res = 0, tot = 0;
	for (pair <int, int> i : V) {
		i.second = lower_bound(coord.begin(), coord.end(), i.second) - coord.begin();
		res += i.first * (tot - query(i.second));
		tot += i.first;
		update(i.second, i.first);
	}
	return res;
}


void addedge(int u, int v)
{
	while(u != -1) {
		int next_u = nxt[u];
		int Sz = deg[u] - deg[next_u] + 1;
		while(chain[next_u].size() > 0) {
			int cnt = chain[next_u][0].first;
			if (cnt <= Sz) {
			    chain[next_u].pop_front();
			    Sz -= cnt;
			} else {
				chain[next_u].front().first -= Sz;
				break;
			}
		}
		chain[next_u].push_front({deg[u] - deg[next_u] + 1, v});
		u = par[next_u];
	}
}


int main() {
	#ifdef IZI_KATKA
	assert(freopen("input", "r", stdin));
    assert(freopen("output", "w", stdout));
    #endif
    int n = readInt();
    for (int i = 1; i <= n; i++) {
    	a[i] = readInt();
    }
    nxt[1] = 1;
    chain[1].pb({1, a[1]});
    par[1] = -1;
    vector <pair <int, int> > Q;
    for (int i = 1; i < n; i++) {
    	int u = readInt(), v = readInt();
    	g[u].pb(v);
    	Q.pb({u, v});
    }
    dfs_sz();
    dfs_hld();
    for (int i = 0; i < n - 1; i++) {
    	cout << calc_path(Q[i].first) << endl;
    	addedge(Q[i].second, a[Q[i].second]);
    }
    return 0;
}

Compilation message

construction.cpp: In function 'll calc_path(int)':
construction.cpp:138:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; i < chain[next_u].size(); i++) {
                   ~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	74 ms	70008 KB	Output is correct
2	Correct	84 ms	70132 KB	Output is correct
3	Correct	83 ms	70240 KB	Output is correct
4	Correct	79 ms	70332 KB	Output is correct
5	Correct	79 ms	70444 KB	Output is correct
6	Correct	86 ms	70488 KB	Output is correct
7	Correct	77 ms	70488 KB	Output is correct
8	Correct	76 ms	70488 KB	Output is correct
9	Correct	71 ms	70488 KB	Output is correct
10	Correct	71 ms	70488 KB	Output is correct
11	Correct	80 ms	70488 KB	Output is correct
12	Correct	79 ms	70488 KB	Output is correct
13	Correct	80 ms	70560 KB	Output is correct
14	Correct	81 ms	70560 KB	Output is correct
15	Correct	81 ms	70560 KB	Output is correct
16	Correct	83 ms	70560 KB	Output is correct
17	Correct	82 ms	70740 KB	Output is correct
18	Correct	80 ms	70740 KB	Output is correct
19	Correct	79 ms	70740 KB	Output is correct
20	Correct	82 ms	70740 KB	Output is correct
21	Correct	79 ms	70740 KB	Output is correct
22	Correct	80 ms	70740 KB	Output is correct
23	Correct	78 ms	70740 KB	Output is correct
24	Correct	77 ms	70740 KB	Output is correct
25	Correct	80 ms	70764 KB	Output is correct
26	Correct	71 ms	70764 KB	Output is correct
27	Correct	82 ms	70868 KB	Output is correct
28	Correct	78 ms	70868 KB	Output is correct
29	Correct	79 ms	70868 KB	Output is correct
30	Correct	79 ms	70868 KB	Output is correct
31	Correct	86 ms	70868 KB	Output is correct
32	Correct	75 ms	70868 KB	Output is correct
33	Correct	89 ms	70868 KB	Output is correct
34	Correct	80 ms	70868 KB	Output is correct
35	Correct	80 ms	70868 KB	Output is correct
36	Correct	80 ms	70868 KB	Output is correct
37	Correct	80 ms	70868 KB	Output is correct
38	Correct	88 ms	70868 KB	Output is correct
39	Correct	81 ms	70868 KB	Output is correct
40	Correct	81 ms	70868 KB	Output is correct
41	Correct	79 ms	70868 KB	Output is correct
42	Correct	85 ms	70868 KB	Output is correct
43	Correct	94 ms	70868 KB	Output is correct
44	Correct	101 ms	70932 KB	Output is correct

Subtask #2
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	74 ms	70008 KB	Output is correct
2	Correct	84 ms	70132 KB	Output is correct
3	Correct	83 ms	70240 KB	Output is correct
4	Correct	79 ms	70332 KB	Output is correct
5	Correct	79 ms	70444 KB	Output is correct
6	Correct	86 ms	70488 KB	Output is correct
7	Correct	77 ms	70488 KB	Output is correct
8	Correct	76 ms	70488 KB	Output is correct
9	Correct	71 ms	70488 KB	Output is correct
10	Correct	71 ms	70488 KB	Output is correct
11	Correct	80 ms	70488 KB	Output is correct
12	Correct	79 ms	70488 KB	Output is correct
13	Correct	80 ms	70560 KB	Output is correct
14	Correct	81 ms	70560 KB	Output is correct
15	Correct	81 ms	70560 KB	Output is correct
16	Correct	83 ms	70560 KB	Output is correct
17	Correct	82 ms	70740 KB	Output is correct
18	Correct	80 ms	70740 KB	Output is correct
19	Correct	79 ms	70740 KB	Output is correct
20	Correct	82 ms	70740 KB	Output is correct
21	Correct	79 ms	70740 KB	Output is correct
22	Correct	80 ms	70740 KB	Output is correct
23	Correct	78 ms	70740 KB	Output is correct
24	Correct	77 ms	70740 KB	Output is correct
25	Correct	80 ms	70764 KB	Output is correct
26	Correct	71 ms	70764 KB	Output is correct
27	Correct	82 ms	70868 KB	Output is correct
28	Correct	78 ms	70868 KB	Output is correct
29	Correct	79 ms	70868 KB	Output is correct
30	Correct	79 ms	70868 KB	Output is correct
31	Correct	86 ms	70868 KB	Output is correct
32	Correct	75 ms	70868 KB	Output is correct
33	Correct	89 ms	70868 KB	Output is correct
34	Correct	80 ms	70868 KB	Output is correct
35	Correct	80 ms	70868 KB	Output is correct
36	Correct	80 ms	70868 KB	Output is correct
37	Correct	80 ms	70868 KB	Output is correct
38	Correct	88 ms	70868 KB	Output is correct
39	Correct	81 ms	70868 KB	Output is correct
40	Correct	81 ms	70868 KB	Output is correct
41	Correct	79 ms	70868 KB	Output is correct
42	Correct	85 ms	70868 KB	Output is correct
43	Correct	94 ms	70868 KB	Output is correct
44	Correct	101 ms	70932 KB	Output is correct
45	Correct	85 ms	70972 KB	Output is correct
46	Correct	88 ms	71968 KB	Output is correct
47	Correct	88 ms	72044 KB	Output is correct
48	Correct	90 ms	72172 KB	Output is correct
49	Correct	78 ms	72172 KB	Output is correct
50	Correct	78 ms	72172 KB	Output is correct
51	Correct	74 ms	72172 KB	Output is correct
52	Correct	89 ms	72728 KB	Output is correct
53	Correct	96 ms	72728 KB	Output is correct
54	Correct	86 ms	72732 KB	Output is correct
55	Correct	100 ms	72812 KB	Output is correct
56	Correct	89 ms	72884 KB	Output is correct
57	Correct	94 ms	72884 KB	Output is correct
58	Correct	101 ms	72908 KB	Output is correct
59	Correct	93 ms	73100 KB	Output is correct
60	Correct	114 ms	73100 KB	Output is correct
61	Correct	83 ms	73188 KB	Output is correct
62	Correct	103 ms	73336 KB	Output is correct
63	Correct	86 ms	73412 KB	Output is correct
64	Correct	104 ms	73412 KB	Output is correct
65	Correct	89 ms	73412 KB	Output is correct
66	Correct	88 ms	73496 KB	Output is correct
67	Correct	88 ms	73508 KB	Output is correct
68	Correct	78 ms	73508 KB	Output is correct
69	Correct	86 ms	73856 KB	Output is correct
70	Correct	94 ms	73900 KB	Output is correct
71	Correct	83 ms	73900 KB	Output is correct
72	Correct	89 ms	73900 KB	Output is correct
73	Correct	90 ms	73900 KB	Output is correct
74	Correct	83 ms	73900 KB	Output is correct
75	Correct	84 ms	73916 KB	Output is correct
76	Correct	88 ms	74236 KB	Output is correct
77	Correct	95 ms	74236 KB	Output is correct
78	Correct	86 ms	74236 KB	Output is correct
79	Correct	86 ms	74236 KB	Output is correct
80	Correct	99 ms	74236 KB	Output is correct
81	Correct	94 ms	74252 KB	Output is correct
82	Correct	90 ms	74316 KB	Output is correct
83	Correct	84 ms	74380 KB	Output is correct
84	Correct	86 ms	74444 KB	Output is correct
85	Correct	86 ms	74540 KB	Output is correct
86	Correct	84 ms	74540 KB	Output is correct

Subtask #3
84.0 / 84.0

#	결과	실행 시간	메모리	Grader output
1	Correct	74 ms	70008 KB	Output is correct
2	Correct	84 ms	70132 KB	Output is correct
3	Correct	83 ms	70240 KB	Output is correct
4	Correct	79 ms	70332 KB	Output is correct
5	Correct	79 ms	70444 KB	Output is correct
6	Correct	86 ms	70488 KB	Output is correct
7	Correct	77 ms	70488 KB	Output is correct
8	Correct	76 ms	70488 KB	Output is correct
9	Correct	71 ms	70488 KB	Output is correct
10	Correct	71 ms	70488 KB	Output is correct
11	Correct	80 ms	70488 KB	Output is correct
12	Correct	79 ms	70488 KB	Output is correct
13	Correct	80 ms	70560 KB	Output is correct
14	Correct	81 ms	70560 KB	Output is correct
15	Correct	81 ms	70560 KB	Output is correct
16	Correct	83 ms	70560 KB	Output is correct
17	Correct	82 ms	70740 KB	Output is correct
18	Correct	80 ms	70740 KB	Output is correct
19	Correct	79 ms	70740 KB	Output is correct
20	Correct	82 ms	70740 KB	Output is correct
21	Correct	79 ms	70740 KB	Output is correct
22	Correct	80 ms	70740 KB	Output is correct
23	Correct	78 ms	70740 KB	Output is correct
24	Correct	77 ms	70740 KB	Output is correct
25	Correct	80 ms	70764 KB	Output is correct
26	Correct	71 ms	70764 KB	Output is correct
27	Correct	82 ms	70868 KB	Output is correct
28	Correct	78 ms	70868 KB	Output is correct
29	Correct	79 ms	70868 KB	Output is correct
30	Correct	79 ms	70868 KB	Output is correct
31	Correct	86 ms	70868 KB	Output is correct
32	Correct	75 ms	70868 KB	Output is correct
33	Correct	89 ms	70868 KB	Output is correct
34	Correct	80 ms	70868 KB	Output is correct
35	Correct	80 ms	70868 KB	Output is correct
36	Correct	80 ms	70868 KB	Output is correct
37	Correct	80 ms	70868 KB	Output is correct
38	Correct	88 ms	70868 KB	Output is correct
39	Correct	81 ms	70868 KB	Output is correct
40	Correct	81 ms	70868 KB	Output is correct
41	Correct	79 ms	70868 KB	Output is correct
42	Correct	85 ms	70868 KB	Output is correct
43	Correct	94 ms	70868 KB	Output is correct
44	Correct	101 ms	70932 KB	Output is correct
45	Correct	85 ms	70972 KB	Output is correct
46	Correct	88 ms	71968 KB	Output is correct
47	Correct	88 ms	72044 KB	Output is correct
48	Correct	90 ms	72172 KB	Output is correct
49	Correct	78 ms	72172 KB	Output is correct
50	Correct	78 ms	72172 KB	Output is correct
51	Correct	74 ms	72172 KB	Output is correct
52	Correct	89 ms	72728 KB	Output is correct
53	Correct	96 ms	72728 KB	Output is correct
54	Correct	86 ms	72732 KB	Output is correct
55	Correct	100 ms	72812 KB	Output is correct
56	Correct	89 ms	72884 KB	Output is correct
57	Correct	94 ms	72884 KB	Output is correct
58	Correct	101 ms	72908 KB	Output is correct
59	Correct	93 ms	73100 KB	Output is correct
60	Correct	114 ms	73100 KB	Output is correct
61	Correct	83 ms	73188 KB	Output is correct
62	Correct	103 ms	73336 KB	Output is correct
63	Correct	86 ms	73412 KB	Output is correct
64	Correct	104 ms	73412 KB	Output is correct
65	Correct	89 ms	73412 KB	Output is correct
66	Correct	88 ms	73496 KB	Output is correct
67	Correct	88 ms	73508 KB	Output is correct
68	Correct	78 ms	73508 KB	Output is correct
69	Correct	86 ms	73856 KB	Output is correct
70	Correct	94 ms	73900 KB	Output is correct
71	Correct	83 ms	73900 KB	Output is correct
72	Correct	89 ms	73900 KB	Output is correct
73	Correct	90 ms	73900 KB	Output is correct
74	Correct	83 ms	73900 KB	Output is correct
75	Correct	84 ms	73916 KB	Output is correct
76	Correct	88 ms	74236 KB	Output is correct
77	Correct	95 ms	74236 KB	Output is correct
78	Correct	86 ms	74236 KB	Output is correct
79	Correct	86 ms	74236 KB	Output is correct
80	Correct	99 ms	74236 KB	Output is correct
81	Correct	94 ms	74252 KB	Output is correct
82	Correct	90 ms	74316 KB	Output is correct
83	Correct	84 ms	74380 KB	Output is correct
84	Correct	86 ms	74444 KB	Output is correct
85	Correct	86 ms	74540 KB	Output is correct
86	Correct	84 ms	74540 KB	Output is correct
87	Correct	103 ms	76508 KB	Output is correct
88	Correct	178 ms	83308 KB	Output is correct
89	Correct	443 ms	106752 KB	Output is correct
90	Correct	435 ms	107064 KB	Output is correct
91	Correct	471 ms	107092 KB	Output is correct
92	Correct	161 ms	107092 KB	Output is correct
93	Correct	170 ms	107092 KB	Output is correct
94	Correct	155 ms	107092 KB	Output is correct
95	Correct	219 ms	111228 KB	Output is correct
96	Correct	228 ms	111228 KB	Output is correct
97	Correct	242 ms	111228 KB	Output is correct
98	Correct	244 ms	111228 KB	Output is correct
99	Correct	243 ms	111228 KB	Output is correct
100	Correct	467 ms	111228 KB	Output is correct
101	Correct	576 ms	111228 KB	Output is correct
102	Correct	531 ms	111228 KB	Output is correct
103	Correct	529 ms	111228 KB	Output is correct
104	Correct	223 ms	111228 KB	Output is correct
105	Correct	232 ms	111228 KB	Output is correct
106	Correct	234 ms	111228 KB	Output is correct
107	Correct	443 ms	111228 KB	Output is correct
108	Correct	472 ms	111228 KB	Output is correct
109	Correct	420 ms	111228 KB	Output is correct
110	Correct	165 ms	111228 KB	Output is correct
111	Correct	225 ms	111228 KB	Output is correct
112	Correct	218 ms	111228 KB	Output is correct
113	Correct	228 ms	111228 KB	Output is correct
114	Correct	493 ms	111228 KB	Output is correct
115	Correct	567 ms	111228 KB	Output is correct
116	Correct	229 ms	111228 KB	Output is correct
117	Correct	244 ms	111228 KB	Output is correct
118	Correct	262 ms	111228 KB	Output is correct
119	Correct	273 ms	111228 KB	Output is correct
120	Correct	240 ms	111228 KB	Output is correct
121	Correct	255 ms	111228 KB	Output is correct
122	Correct	259 ms	111228 KB	Output is correct
123	Correct	280 ms	111228 KB	Output is correct
124	Correct	245 ms	111228 KB	Output is correct
125	Correct	267 ms	111228 KB	Output is correct
126	Correct	233 ms	111228 KB	Output is correct
127	Correct	248 ms	111228 KB	Output is correct
128	Correct	252 ms	111228 KB	Output is correct

답안 #85966

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