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Submission #628431

# Submission time Handle Problem Language Result Execution time Memory
628431 2022-08-13T11:55:00 Z stevancv Wiring (IOI17_wiring) C++14
100 / 100
 53 ms 12560 KB 
#include <bits/stdc++.h>
#include "wiring.h"
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 6e5 + 2;
const int mod = 1e9 + 7;
ll min_total_length(vector<int> a, vector<int> b) {
    int n = a.size(); int m = b.size();
    vector<pair<ll, int>> all;
    for (int i = 0; i < n; i++) all.push_back({a[i], 0});
    for (int i = 0; i < m; i++) all.push_back({b[i], 1});
    sort(all.begin(), all.end());
    vector<pair<int, int>> s;
    for (int i = 0; i < n + m; i++) {
        int j = i;
        while (j < n + m - 1 && all[j].second == all[j + 1].second) j++;
        s.push_back({i, j});
        i = j;
    }
    vector<ll> dp(n + m, 1e18);
    vector<ll> p, q;
    int sz = s.size();
    for (int i = 0; i < sz; i++) {
        int l = s[i].first; int r = s[i].second;
        vector<ll> pref(r - l + 1), suff(r - l + 1);
        for (int j = l; j <= r; j++) {
            pref[j - l] = all[j].first - all[l].first;
            if (j > l) pref[j - l] += pref[j - l - 1];
        }
        for (int j = r; j >= l; j--) {
            suff[j - l] = all[r].first - all[j].first;
            if (j < r) suff[j - l] += suff[j - l + 1];
        }
        if (i > 0) {
            for (int j = l; j <= r; j++) {
                smin(dp[j], pref[j - l] + p[max(0, (int)(p.size()) - j + l - 1)] + (j - l + 1) * (all[l].first - all[l - 1].first));
                if (j - l + 1 <= q.size()) smin(dp[j], pref[j - l] + q[q.size() - j + l - 1]);
                smin(dp[j], dp[l - 1] + (j - l + 1) * (all[l].first - all[l - 1].first) + pref[j - l]);
            }
        }
        if (i < sz - 1) {
            p.clear(); q.clear();
            p.resize(r - l + 1, 1e18); q.resize(r - l + 1, 1e18);
            for (int j = r; j >= l; j--) {
                smin(p[j - l], (j > 0 ? dp[j - 1] : 0) + suff[j - l]);
                if (j < r) smin(p[j - l], p[j - l + 1]);
            }
            for (int j = l; j <= r; j++) {
                smin(q[j - l], (j > 0 ? dp[j - 1] : 0) + suff[j - l] + (r - j + 1) * (all[r + 1].first - all[r].first));
                if (j > l) smin(q[j - l], q[j - l - 1]);
            }
        }
    }
    return dp[n + m - 1];
}

Compilation message

wiring.cpp: In function 'long long int min_total_length(std::vector<int>, std::vector<int>)':
wiring.cpp:42:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |                 if (j - l + 1 <= q.size()) smin(dp[j], pref[j - l] + q[q.size() - j + l - 1]);
      |                     ~~~~~~~~~~^~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 296 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 296 KB Output is correct
13 Correct 1 ms 300 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 27 ms 9528 KB Output is correct
4 Correct 27 ms 9568 KB Output is correct
5 Correct 26 ms 9560 KB Output is correct
6 Correct 34 ms 12312 KB Output is correct
7 Correct 38 ms 11544 KB Output is correct
8 Correct 33 ms 11576 KB Output is correct
9 Correct 33 ms 11640 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 296 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 47 ms 9372 KB Output is correct
4 Correct 46 ms 8888 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 2 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 300 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 46 ms 9368 KB Output is correct
19 Correct 45 ms 9360 KB Output is correct
20 Correct 49 ms 9236 KB Output is correct
21 Correct 46 ms 9364 KB Output is correct
22 Correct 47 ms 9376 KB Output is correct
23 Correct 47 ms 9368 KB Output is correct
24 Correct 47 ms 9372 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 43 ms 8204 KB Output is correct
3 Correct 49 ms 8152 KB Output is correct
4 Correct 53 ms 7948 KB Output is correct
5 Correct 42 ms 8120 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 39 ms 8976 KB Output is correct
19 Correct 39 ms 7832 KB Output is correct
20 Correct 38 ms 7968 KB Output is correct
21 Correct 45 ms 8632 KB Output is correct
22 Correct 47 ms 10772 KB Output is correct
23 Correct 35 ms 10496 KB Output is correct
24 Correct 34 ms 10876 KB Output is correct

Subtask #5
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 296 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 296 KB Output is correct
13 Correct 1 ms 300 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 27 ms 9528 KB Output is correct
20 Correct 27 ms 9568 KB Output is correct
21 Correct 26 ms 9560 KB Output is correct
22 Correct 34 ms 12312 KB Output is correct
23 Correct 38 ms 11544 KB Output is correct
24 Correct 33 ms 11576 KB Output is correct
25 Correct 33 ms 11640 KB Output is correct
26 Correct 1 ms 296 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 47 ms 9372 KB Output is correct
29 Correct 46 ms 8888 KB Output is correct
30 Correct 1 ms 300 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 2 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 300 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 0 ms 212 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 46 ms 9368 KB Output is correct
44 Correct 45 ms 9360 KB Output is correct
45 Correct 49 ms 9236 KB Output is correct
46 Correct 46 ms 9364 KB Output is correct
47 Correct 47 ms 9376 KB Output is correct
48 Correct 47 ms 9368 KB Output is correct
49 Correct 47 ms 9372 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 43 ms 8204 KB Output is correct
52 Correct 49 ms 8152 KB Output is correct
53 Correct 53 ms 7948 KB Output is correct
54 Correct 42 ms 8120 KB Output is correct
55 Correct 1 ms 212 KB Output is correct
56 Correct 1 ms 212 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 0 ms 212 KB Output is correct
62 Correct 1 ms 212 KB Output is correct
63 Correct 1 ms 212 KB Output is correct
64 Correct 1 ms 212 KB Output is correct
65 Correct 1 ms 212 KB Output is correct
66 Correct 1 ms 212 KB Output is correct
67 Correct 39 ms 8976 KB Output is correct
68 Correct 39 ms 7832 KB Output is correct
69 Correct 38 ms 7968 KB Output is correct
70 Correct 45 ms 8632 KB Output is correct
71 Correct 47 ms 10772 KB Output is correct
72 Correct 35 ms 10496 KB Output is correct
73 Correct 34 ms 10876 KB Output is correct
74 Correct 33 ms 11164 KB Output is correct
75 Correct 44 ms 10288 KB Output is correct
76 Correct 41 ms 10524 KB Output is correct
77 Correct 40 ms 10552 KB Output is correct
78 Correct 43 ms 10680 KB Output is correct
79 Correct 41 ms 10196 KB Output is correct
80 Correct 33 ms 10008 KB Output is correct
81 Correct 38 ms 10780 KB Output is correct
82 Correct 32 ms 10776 KB Output is correct
83 Correct 36 ms 10720 KB Output is correct
84 Correct 32 ms 11420 KB Output is correct
85 Correct 41 ms 10168 KB Output is correct
86 Correct 41 ms 11552 KB Output is correct
87 Correct 36 ms 10660 KB Output is correct
88 Correct 38 ms 10300 KB Output is correct
89 Correct 38 ms 11172 KB Output is correct
90 Correct 43 ms 11320 KB Output is correct
91 Correct 36 ms 11156 KB Output is correct
92 Correct 40 ms 11296 KB Output is correct
93 Correct 38 ms 10652 KB Output is correct
94 Correct 41 ms 11428 KB Output is correct
95 Correct 43 ms 10424 KB Output is correct
96 Correct 34 ms 10920 KB Output is correct
97 Correct 38 ms 12560 KB Output is correct
98 Correct 45 ms 11796 KB Output is correct
99 Correct 38 ms 11832 KB Output is correct
100 Correct 44 ms 11544 KB Output is correct
101 Correct 41 ms 11040 KB Output is correct
102 Correct 46 ms 10788 KB Output is correct