oj.uz

Submission #1105679

# Submission time Handle Problem Language Result Execution time Memory
1105679 2024-10-27T10:04:29 Z elush None (JOI16_ho_t4) C++14
100 / 100
 221 ms 41452 KB 
#include <bits/stdc++.h>
#define chkmax(a, b) a = max(a, b)
#define all(v) v.begin(), v.end()
#define x first
#define y second
using namespace std;
typedef long long ll;
typedef vector<ll> vi;
typedef pair<ll, ll> pii;
typedef vector<vi> vvi;
typedef vector<pii> vii;

set<pii> points;
set<pii> squares;

void AddPoint(int x, int y) {
    points.insert({x, y});
    for (int i = -1; i < 1; i++) {
        for (int j = -1; j < 1; j++) {
            squares.insert({x + i, y + j});
//            if (x + i == -3 && y + j == 1) {
//                cout << "";
//            }
        }
    }
}

ll CountSquares(int n, int k, string route) {
    int x = 0, y = 0;
    AddPoint(x, y);
    for (char c : route) {
        if (c == 'N') x--;
        else if (c == 'E') y++;
        else if (c == 'S') x++;
        else y--;
        AddPoint(x, y);
    }
    if (!x && !y) {
        ll ans = 0;
        for (pii p : squares) {
            int c = 0;
            for (int i = 0; i < 2; i++) {
                for (int j = 0; j < 2; j++) {
                    c += points.count({p.x + i, p.y + j});
                }
            }
            ans += c == 4;
        }
        return ans;
    }
    map<pii, vii> mp;
    for (pii p : squares) {
        ll startx = x ? (p.x % x + x) % x : p.x;
        ll starty = y ? (p.y % y + y) % y : p.y;
        ll mov = !x ? (p.y - starty) / y : (p.x - startx) / x;
        startx = p.x - mov * x, starty = p.y - mov * y;
        mp[{startx, starty}].push_back(p);
    }
    ll ans = 0;
    for (auto &[p, v] : mp) {
        vvi last(2, vi(2, -1));
        if (x < 0 || !x && y < 0) reverse(all(v));
        auto [bx, by] = v[0];
        vii ranges;
        for (int i = 0; i < v.size(); i++) {
            for (int j = 0; j < 2; j++) {
                for (int l = 0; l < 2; l++) {
                    if (points.count({v[i].x + j, v[i].y + l})) {
                        last[j][l] = i;
                    }
                }
            }
            ll min_i = min({last[0][0], last[0][1], last[1][0], last[1][1]});
            if (min_i == -1) continue;
            ll tim = x ? (v[i].x - v[min_i].x) / x : (v[i].y - v[min_i].y) / y;
            ll l = x ? (v[i].x - bx) / x : (v[i].y - by) / y;
            if (tim <= k) ranges.push_back({l, l + k - tim});
        }
        ll last_r = -1;
        for (auto [l, r] : ranges) {
            if (l <= last_r && r > last_r) {
                ans += r - last_r;
            } else if (l > last_r) {
                ans += r - l;
            }
            chkmax(last_r, r);
        }
    }
    return ans;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie();
    int n, k;
    string route;
    cin >> n >> k >> route;
    cout << CountSquares(n, k, route);
}

Compilation message

2016_ho_t4.cpp: In function 'll CountSquares(int, int, std::string)':
2016_ho_t4.cpp:60:16: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   60 |     for (auto &[p, v] : mp) {
      |                ^
2016_ho_t4.cpp:62:25: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   62 |         if (x < 0 || !x && y < 0) reverse(all(v));
      |                      ~~~^~~~~~~~
2016_ho_t4.cpp:63:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   63 |         auto [bx, by] = v[0];
      |              ^
2016_ho_t4.cpp:65:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |         for (int i = 0; i < v.size(); i++) {
      |                         ~~^~~~~~~~~~
2016_ho_t4.cpp:80:19: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   80 |         for (auto [l, r] : ranges) {
      |                   ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 504 KB Output is correct
27 Correct 3 ms 744 KB Output is correct
28 Correct 6 ms 848 KB Output is correct
29 Correct 25 ms 4540 KB Output is correct
30 Correct 30 ms 4176 KB Output is correct
31 Correct 171 ms 33848 KB Output is correct
32 Correct 33 ms 3408 KB Output is correct
33 Correct 49 ms 7508 KB Output is correct
34 Correct 55 ms 8264 KB Output is correct
35 Correct 44 ms 7244 KB Output is correct
36 Correct 41 ms 5504 KB Output is correct
37 Correct 40 ms 3944 KB Output is correct
38 Correct 47 ms 6756 KB Output is correct
39 Correct 45 ms 7240 KB Output is correct
40 Correct 33 ms 3408 KB Output is correct
41 Correct 36 ms 4428 KB Output is correct
42 Correct 34 ms 4424 KB Output is correct
43 Correct 47 ms 7240 KB Output is correct
44 Correct 43 ms 6728 KB Output is correct
45 Correct 37 ms 5704 KB Output is correct
46 Correct 108 ms 15196 KB Output is correct
47 Correct 116 ms 17936 KB Output is correct
48 Correct 150 ms 23240 KB Output is correct
49 Correct 221 ms 41452 KB Output is correct
50 Correct 219 ms 41416 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 2 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 508 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Correct 1 ms 336 KB Output is correct
39 Correct 1 ms 508 KB Output is correct
40 Correct 1 ms 336 KB Output is correct
41 Correct 1 ms 336 KB Output is correct
42 Correct 1 ms 336 KB Output is correct
43 Correct 1 ms 336 KB Output is correct
44 Correct 1 ms 336 KB Output is correct
45 Correct 1 ms 508 KB Output is correct
46 Correct 1 ms 336 KB Output is correct
47 Correct 1 ms 336 KB Output is correct
48 Correct 1 ms 464 KB Output is correct
49 Correct 1 ms 504 KB Output is correct
50 Correct 1 ms 336 KB Output is correct

Subtask #4
62.0 / 62.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 504 KB Output is correct
27 Correct 3 ms 744 KB Output is correct
28 Correct 6 ms 848 KB Output is correct
29 Correct 25 ms 4540 KB Output is correct
30 Correct 30 ms 4176 KB Output is correct
31 Correct 171 ms 33848 KB Output is correct
32 Correct 33 ms 3408 KB Output is correct
33 Correct 49 ms 7508 KB Output is correct
34 Correct 55 ms 8264 KB Output is correct
35 Correct 44 ms 7244 KB Output is correct
36 Correct 41 ms 5504 KB Output is correct
37 Correct 40 ms 3944 KB Output is correct
38 Correct 47 ms 6756 KB Output is correct
39 Correct 45 ms 7240 KB Output is correct
40 Correct 33 ms 3408 KB Output is correct
41 Correct 36 ms 4428 KB Output is correct
42 Correct 34 ms 4424 KB Output is correct
43 Correct 47 ms 7240 KB Output is correct
44 Correct 43 ms 6728 KB Output is correct
45 Correct 37 ms 5704 KB Output is correct
46 Correct 108 ms 15196 KB Output is correct
47 Correct 116 ms 17936 KB Output is correct
48 Correct 150 ms 23240 KB Output is correct
49 Correct 221 ms 41452 KB Output is correct
50 Correct 219 ms 41416 KB Output is correct
51 Correct 1 ms 336 KB Output is correct
52 Correct 2 ms 336 KB Output is correct
53 Correct 1 ms 336 KB Output is correct
54 Correct 1 ms 336 KB Output is correct
55 Correct 1 ms 336 KB Output is correct
56 Correct 1 ms 336 KB Output is correct
57 Correct 1 ms 508 KB Output is correct
58 Correct 1 ms 336 KB Output is correct
59 Correct 1 ms 336 KB Output is correct
60 Correct 1 ms 336 KB Output is correct
61 Correct 1 ms 336 KB Output is correct
62 Correct 1 ms 336 KB Output is correct
63 Correct 1 ms 336 KB Output is correct
64 Correct 1 ms 508 KB Output is correct
65 Correct 1 ms 336 KB Output is correct
66 Correct 1 ms 336 KB Output is correct
67 Correct 1 ms 336 KB Output is correct
68 Correct 1 ms 336 KB Output is correct
69 Correct 1 ms 336 KB Output is correct
70 Correct 1 ms 508 KB Output is correct
71 Correct 1 ms 336 KB Output is correct
72 Correct 1 ms 336 KB Output is correct
73 Correct 1 ms 464 KB Output is correct
74 Correct 1 ms 504 KB Output is correct
75 Correct 1 ms 336 KB Output is correct
76 Correct 4 ms 848 KB Output is correct
77 Correct 4 ms 592 KB Output is correct
78 Correct 34 ms 5968 KB Output is correct
79 Correct 102 ms 19528 KB Output is correct
80 Correct 40 ms 4692 KB Output is correct
81 Correct 38 ms 4220 KB Output is correct
82 Correct 48 ms 6228 KB Output is correct
83 Correct 35 ms 3664 KB Output is correct
84 Correct 50 ms 6984 KB Output is correct
85 Correct 50 ms 6984 KB Output is correct
86 Correct 164 ms 26580 KB Output is correct
87 Correct 54 ms 8520 KB Output is correct
88 Correct 45 ms 5968 KB Output is correct
89 Correct 46 ms 6236 KB Output is correct
90 Correct 39 ms 4176 KB Output is correct
91 Correct 46 ms 7324 KB Output is correct
92 Correct 47 ms 7504 KB Output is correct
93 Correct 50 ms 7784 KB Output is correct
94 Correct 39 ms 4944 KB Output is correct
95 Correct 43 ms 5456 KB Output is correct
96 Correct 116 ms 15180 KB Output is correct
97 Correct 119 ms 17736 KB Output is correct
98 Correct 180 ms 24244 KB Output is correct
99 Correct 221 ms 41288 KB Output is correct
100 Correct 151 ms 27976 KB Output is correct