답안 #40229 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
40229	2018-01-30T08:10:58 Z	jackyliuxx	전선 연결 (IOI17_wiring)	C++14	100 / 100	101 ms	17148 KB

wiring

//#define DEBUG

#include "wiring.h"
#include <bits/stdc++.h>
using namespace std;

#define INF 9000000000000000000L
#define RED true
#define BLUE false

typedef long long LL;

struct P {
    bool color;
    LL pos;
};

bool cmp(P a, P b) {
    return a.pos < b.pos;
}

vector<P> arr;
vector<int> head;
vector<LL> lsum, lcnt;
vector<int> tail;
vector<LL> rsum, rcnt;
vector<LL> dp;

LL dpv(int x) {
    if (x < 0) {
        return 0;
    } else {
        return dp[x];
    }
}

LL calc(int l, int r) {
#ifdef DEBUG
    cout << "calc " << l << ' ' << r << endl;
    cout << "rsum l: " << rsum[l] << endl;
    cout << "lsum r: " << lsum[r] << endl;
    cout << "rcnt l: " << rcnt[l] << endl;
    cout << "lcnt r: " << rcnt[r] << endl;
    cout << "tail l: " << tail[l] << endl;
    cout << "head r: " << head[r] << endl;
#endif
    LL ret = min(dpv(l), dpv(l - 1)) + rsum[l] + lsum[r] + max(rcnt[l], lcnt[r]) * (arr[head[r]].pos - arr[tail[l]].pos);
#ifdef DEBUG
    cout << "ret: " << ret << endl;
#endif
    return ret;
}

long long min_total_length(std::vector<int> r, std::vector<int> b) {
    for (size_t i = 0; i < r.size(); i++) {
        arr.push_back({RED, r[i]});
    }
    for (size_t i = 0; i < b.size(); i++) {
        arr.push_back({BLUE, b[i]});
    }
    int n = arr.size();

    head.assign(n, 0);
    lsum.assign(n, 0);
    lcnt.assign(n, 1);
    tail.assign(n, 0);
    rsum.assign(n, 0);
    rcnt.assign(n, 1);
    dp.assign(n, INF);

    sort(arr.begin(), arr.end(), cmp);

    head[0] = 0;
    for (int i = 1; i < n; i++) {
        if (arr[i].color != arr[i - 1].color) {
            head[i] = i;
            lsum[i] = 0;
            lcnt[i] = 1;
        } else {
            head[i] = head[i - 1];
            lsum[i] = lsum[i - 1] + (arr[i].pos - arr[head[i]].pos);
            lcnt[i] = lcnt[i - 1] + 1;
        }
    }

    tail[n - 1] = n - 1;
    for (int i = n - 2; i >= 0; i--) {
        if (arr[i].color != arr[i + 1].color) {
            tail[i] = i;
            rsum[i] = 0;
            rcnt[i] = 1;
        } else {
            tail[i] = tail[i + 1];
            rsum[i] = rsum[i + 1] + (arr[tail[i]].pos - arr[i].pos);
            rcnt[i] = rcnt[i + 1] + 1;
        }
    }
    int prehead = -1;
    int prepos = -1;
    for (int i = 1; i < n; i++) {
        if (arr[i].color != arr[i - 1].color) {
            prehead = head[i - 1];
            for (int j = i - 1; j >= prehead; j--) {
                if (calc(j, i) <= dp[i]) {
                    dp[i] = calc(j, i);
                    prepos = j;
                }
            }
        } else if (head[i] > 0) {
            dp[i] = calc(prepos, i);
            if (prepos > prehead && calc(prepos - 1, i) <= dp[i]) {
                dp[i] = calc(prepos - 1, i);
                prepos--;
            }
        }
#ifdef DEBUG
        cout << i << " pos: " << arr[i].pos << " dp: " << dp[i] << " spos:" << prepos << endl;
#endif
    }
    return dp[n - 1];
}

Subtask #1
7.0 / 7.0

#	결과	메모리	Grader output
1	Correct	2028 KB	Output is correct
2	Correct	2028 KB	Output is correct
3	Correct	2028 KB	Output is correct
4	Correct	2028 KB	Output is correct
5	Correct	2028 KB	Output is correct
6	Correct	2028 KB	Output is correct
7	Correct	2028 KB	Output is correct
8	Correct	2028 KB	Output is correct
9	Correct	2028 KB	Output is correct
10	Correct	2028 KB	Output is correct
11	Correct	2028 KB	Output is correct
12	Correct	2028 KB	Output is correct
13	Correct	2028 KB	Output is correct
14	Correct	2028 KB	Output is correct
15	Correct	2028 KB	Output is correct
16	Correct	2028 KB	Output is correct

Subtask #2
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2028 KB	Output is correct
2	Correct	0 ms	2028 KB	Output is correct
3	Correct	48 ms	14412 KB	Output is correct
4	Correct	47 ms	14412 KB	Output is correct
5	Correct	47 ms	14408 KB	Output is correct
6	Correct	63 ms	17144 KB	Output is correct
7	Correct	77 ms	17144 KB	Output is correct
8	Correct	63 ms	17148 KB	Output is correct
9	Correct	60 ms	17148 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2028 KB	Output is correct
2	Correct	0 ms	2028 KB	Output is correct
3	Correct	88 ms	17144 KB	Output is correct
4	Correct	89 ms	17148 KB	Output is correct
5	Correct	0 ms	2028 KB	Output is correct
6	Correct	0 ms	2028 KB	Output is correct
7	Correct	0 ms	2028 KB	Output is correct
8	Correct	0 ms	2028 KB	Output is correct
9	Correct	0 ms	2028 KB	Output is correct
10	Correct	0 ms	2028 KB	Output is correct
11	Correct	0 ms	2028 KB	Output is correct
12	Correct	0 ms	2028 KB	Output is correct
13	Correct	0 ms	2028 KB	Output is correct
14	Correct	0 ms	2028 KB	Output is correct
15	Correct	0 ms	2028 KB	Output is correct
16	Correct	0 ms	2028 KB	Output is correct
17	Correct	0 ms	2028 KB	Output is correct
18	Correct	84 ms	17128 KB	Output is correct
19	Correct	91 ms	17124 KB	Output is correct
20	Correct	76 ms	17148 KB	Output is correct
21	Correct	81 ms	17120 KB	Output is correct
22	Correct	72 ms	17132 KB	Output is correct
23	Correct	82 ms	17132 KB	Output is correct
24	Correct	74 ms	17140 KB	Output is correct

Subtask #4
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2028 KB	Output is correct
2	Correct	73 ms	17148 KB	Output is correct
3	Correct	70 ms	17148 KB	Output is correct
4	Correct	83 ms	17148 KB	Output is correct
5	Correct	70 ms	17148 KB	Output is correct
6	Correct	0 ms	2028 KB	Output is correct
7	Correct	0 ms	2028 KB	Output is correct
8	Correct	0 ms	2028 KB	Output is correct
9	Correct	0 ms	2028 KB	Output is correct
10	Correct	0 ms	2028 KB	Output is correct
11	Correct	0 ms	2028 KB	Output is correct
12	Correct	0 ms	2028 KB	Output is correct
13	Correct	0 ms	2028 KB	Output is correct
14	Correct	0 ms	2028 KB	Output is correct
15	Correct	0 ms	2028 KB	Output is correct
16	Correct	0 ms	2028 KB	Output is correct
17	Correct	0 ms	2028 KB	Output is correct
18	Correct	62 ms	17148 KB	Output is correct
19	Correct	73 ms	17148 KB	Output is correct
20	Correct	79 ms	17148 KB	Output is correct
21	Correct	59 ms	17148 KB	Output is correct
22	Correct	75 ms	17148 KB	Output is correct
23	Correct	45 ms	17148 KB	Output is correct
24	Correct	59 ms	17148 KB	Output is correct

Subtask #5
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2028 KB	Output is correct
2	Correct	0 ms	2028 KB	Output is correct
3	Correct	0 ms	2028 KB	Output is correct
4	Correct	0 ms	2028 KB	Output is correct
5	Correct	0 ms	2028 KB	Output is correct
6	Correct	0 ms	2028 KB	Output is correct
7	Correct	0 ms	2028 KB	Output is correct
8	Correct	0 ms	2028 KB	Output is correct
9	Correct	0 ms	2028 KB	Output is correct
10	Correct	0 ms	2028 KB	Output is correct
11	Correct	0 ms	2028 KB	Output is correct
12	Correct	0 ms	2028 KB	Output is correct
13	Correct	0 ms	2028 KB	Output is correct
14	Correct	0 ms	2028 KB	Output is correct
15	Correct	0 ms	2028 KB	Output is correct
16	Correct	0 ms	2028 KB	Output is correct
17	Correct	0 ms	2028 KB	Output is correct
18	Correct	0 ms	2028 KB	Output is correct
19	Correct	48 ms	14412 KB	Output is correct
20	Correct	47 ms	14412 KB	Output is correct
21	Correct	47 ms	14408 KB	Output is correct
22	Correct	63 ms	17144 KB	Output is correct
23	Correct	77 ms	17144 KB	Output is correct
24	Correct	63 ms	17148 KB	Output is correct
25	Correct	60 ms	17148 KB	Output is correct
26	Correct	0 ms	2028 KB	Output is correct
27	Correct	0 ms	2028 KB	Output is correct
28	Correct	88 ms	17144 KB	Output is correct
29	Correct	89 ms	17148 KB	Output is correct
30	Correct	0 ms	2028 KB	Output is correct
31	Correct	0 ms	2028 KB	Output is correct
32	Correct	0 ms	2028 KB	Output is correct
33	Correct	0 ms	2028 KB	Output is correct
34	Correct	0 ms	2028 KB	Output is correct
35	Correct	0 ms	2028 KB	Output is correct
36	Correct	0 ms	2028 KB	Output is correct
37	Correct	0 ms	2028 KB	Output is correct
38	Correct	0 ms	2028 KB	Output is correct
39	Correct	0 ms	2028 KB	Output is correct
40	Correct	0 ms	2028 KB	Output is correct
41	Correct	0 ms	2028 KB	Output is correct
42	Correct	0 ms	2028 KB	Output is correct
43	Correct	84 ms	17128 KB	Output is correct
44	Correct	91 ms	17124 KB	Output is correct
45	Correct	76 ms	17148 KB	Output is correct
46	Correct	81 ms	17120 KB	Output is correct
47	Correct	72 ms	17132 KB	Output is correct
48	Correct	82 ms	17132 KB	Output is correct
49	Correct	74 ms	17140 KB	Output is correct
50	Correct	0 ms	2028 KB	Output is correct
51	Correct	73 ms	17148 KB	Output is correct
52	Correct	70 ms	17148 KB	Output is correct
53	Correct	83 ms	17148 KB	Output is correct
54	Correct	70 ms	17148 KB	Output is correct
55	Correct	0 ms	2028 KB	Output is correct
56	Correct	0 ms	2028 KB	Output is correct
57	Correct	0 ms	2028 KB	Output is correct
58	Correct	0 ms	2028 KB	Output is correct
59	Correct	0 ms	2028 KB	Output is correct
60	Correct	0 ms	2028 KB	Output is correct
61	Correct	0 ms	2028 KB	Output is correct
62	Correct	0 ms	2028 KB	Output is correct
63	Correct	0 ms	2028 KB	Output is correct
64	Correct	0 ms	2028 KB	Output is correct
65	Correct	0 ms	2028 KB	Output is correct
66	Correct	0 ms	2028 KB	Output is correct
67	Correct	62 ms	17148 KB	Output is correct
68	Correct	73 ms	17148 KB	Output is correct
69	Correct	79 ms	17148 KB	Output is correct
70	Correct	59 ms	17148 KB	Output is correct
71	Correct	75 ms	17148 KB	Output is correct
72	Correct	45 ms	17148 KB	Output is correct
73	Correct	59 ms	17148 KB	Output is correct
74	Correct	65 ms	17148 KB	Output is correct
75	Correct	78 ms	17148 KB	Output is correct
76	Correct	66 ms	17148 KB	Output is correct
77	Correct	89 ms	17148 KB	Output is correct
78	Correct	75 ms	17148 KB	Output is correct
79	Correct	71 ms	17148 KB	Output is correct
80	Correct	92 ms	17148 KB	Output is correct
81	Correct	65 ms	17148 KB	Output is correct
82	Correct	53 ms	17148 KB	Output is correct
83	Correct	59 ms	17148 KB	Output is correct
84	Correct	66 ms	17148 KB	Output is correct
85	Correct	79 ms	17148 KB	Output is correct
86	Correct	58 ms	17148 KB	Output is correct
87	Correct	73 ms	17148 KB	Output is correct
88	Correct	74 ms	17148 KB	Output is correct
89	Correct	101 ms	17148 KB	Output is correct
90	Correct	81 ms	17148 KB	Output is correct
91	Correct	55 ms	17148 KB	Output is correct
92	Correct	61 ms	17148 KB	Output is correct
93	Correct	71 ms	17148 KB	Output is correct
94	Correct	58 ms	17148 KB	Output is correct
95	Correct	88 ms	17148 KB	Output is correct
96	Correct	58 ms	17148 KB	Output is correct
97	Correct	66 ms	17148 KB	Output is correct
98	Correct	69 ms	17148 KB	Output is correct
99	Correct	60 ms	17148 KB	Output is correct
100	Correct	75 ms	17148 KB	Output is correct
101	Correct	91 ms	17148 KB	Output is correct
102	Correct	72 ms	17148 KB	Output is correct

답안 #40229

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 13.0 / 13.0

Subtask #3 10.0 / 10.0

Subtask #4 25.0 / 25.0

Subtask #5 45.0 / 45.0

Subtask #1
7.0 / 7.0

Subtask #2
13.0 / 13.0

Subtask #3
10.0 / 10.0

Subtask #4
25.0 / 25.0

Subtask #5
45.0 / 45.0