oj.uz

답안 #469926

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
469926 2021-09-02T10:44:42 Z ymm Jakarta Skyscrapers (APIO15_skyscraper) C++17
57 / 100
 1000 ms 37924 KB 
///
///   ♪ Pizza mozzarella rella rella rella... ♪
///

#define _USE_MATH_DEFINES
#define FAST ios::sync_with_stdio(false),cin.tie(0);
#include <bits/stdc++.h>
#define Loop(x, l, r) for(int x = (l); x < (r); ++x)
#define LoopR(x, l, r) for(int x = (r)-1; x >= (l); --x)
#define all(x) x.begin(), x.end()
#define Kill(x) exit((cout << (x) << '\n', 0))
#define YN(flag) ((flag)? "YES": "NO")
#define F first
#define S second
typedef          long long   ll;
typedef unsigned long long  ull;
typedef std::pair<int,int>  pii;
typedef std::pair<ll ,ll >  pll;
using namespace std;

const int N = 30'010;
map<int,int> d;
vector<int> P[N];
bool vis[N];
int n, m;

void bfs(int sv, int sp)
{
    vector<int> q;
    vis[sv] = 1;
    for(auto p : P[sv]) if(!d.count(sv<<15^p)) d[sv<<15^p] = 0, q.push_back(sv<<15^p);
    if(!d.count(sv<<15^sp)) d[sv<<15^sp] = 0, q.push_back(sv<<15^sp);
    for(int i = 0, j = q.size(), d = 0; i < q.size(); j = q.size(), ++d) for(; i < j; ++i)
    {
        int v = q[i]>>15, p = q[i]&32767;
        //cerr << v << ' ' << p << ": " << d << '\n';
        int u = v+p;
        if(0 <= u && u < n)
        {
            if(!vis[u]){
                vis[u] = 1;
                for(auto p : P[u]) if(!::d.count(u<<15^p)) ::d[u<<15^p] = d+1, q.push_back(u<<15^p);
            }
            if(!::d.count(u<<15^p)) ::d[u<<15^p] = d+1, q.push_back(u<<15^p);
        }
        u = v-p;
        if(0 <= u && u < n)
        {
            if(!vis[u]){
                vis[u] = 1;
                for(auto p : P[u]) if(!::d.count(u<<15^p)) ::d[u<<15^p] = d+1, q.push_back(u<<15^p);
            }
            if(!::d.count(u<<15^p)) ::d[u<<15^p] = d+1, q.push_back(u<<15^p);
        }
    }
}

int main()
{
    FAST;
    cin >> n >> m;
    int p, src, des, dmy;
    cin >> src >> p;
    cin >> des >> dmy;
    P[des].push_back(dmy);
    Loop(i,2,m)
    {
        int v, p;
        cin >> v >> p;
        P[v].push_back(p);
    }
    bfs(src, p);
    cout << (d.count(des<<15^dmy)? d[des<<15^dmy]: -1) << '\n';
}

Compilation message

skyscraper.cpp: In function 'void bfs(int, int)':
skyscraper.cpp:33:43: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     for(int i = 0, j = q.size(), d = 0; i < q.size(); j = q.size(), ++d) for(; i < j; ++i)
      |                                         ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 2 ms 1100 KB Output is correct
11 Correct 4 ms 1228 KB Output is correct
12 Correct 2 ms 1036 KB Output is correct
13 Correct 2 ms 972 KB Output is correct
14 Correct 4 ms 1276 KB Output is correct
15 Correct 4 ms 1356 KB Output is correct

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 2 ms 1100 KB Output is correct
11 Correct 3 ms 1228 KB Output is correct
12 Correct 1 ms 972 KB Output is correct
13 Correct 1 ms 972 KB Output is correct
14 Correct 3 ms 1284 KB Output is correct
15 Correct 3 ms 1288 KB Output is correct
16 Correct 1 ms 972 KB Output is correct
17 Correct 8 ms 1780 KB Output is correct
18 Correct 1 ms 972 KB Output is correct
19 Correct 1 ms 972 KB Output is correct
20 Correct 2 ms 1100 KB Output is correct
21 Correct 1 ms 972 KB Output is correct
22 Correct 1 ms 1100 KB Output is correct
23 Correct 4 ms 1356 KB Output is correct
24 Correct 9 ms 1652 KB Output is correct
25 Correct 4 ms 1356 KB Output is correct
26 Correct 4 ms 1356 KB Output is correct
27 Correct 4 ms 1356 KB Output is correct
28 Correct 11 ms 2248 KB Output is correct
29 Correct 33 ms 4092 KB Output is correct
30 Correct 8 ms 1868 KB Output is correct
31 Correct 16 ms 2808 KB Output is correct
32 Correct 11 ms 2164 KB Output is correct
33 Correct 77 ms 7104 KB Output is correct
34 Correct 79 ms 7100 KB Output is correct

Subtask #4
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 1100 KB Output is correct
11 Correct 3 ms 1228 KB Output is correct
12 Correct 1 ms 972 KB Output is correct
13 Correct 1 ms 1032 KB Output is correct
14 Correct 4 ms 1356 KB Output is correct
15 Correct 3 ms 1356 KB Output is correct
16 Correct 1 ms 972 KB Output is correct
17 Correct 8 ms 1740 KB Output is correct
18 Correct 1 ms 972 KB Output is correct
19 Correct 1 ms 972 KB Output is correct
20 Correct 2 ms 1168 KB Output is correct
21 Correct 1 ms 1036 KB Output is correct
22 Correct 1 ms 972 KB Output is correct
23 Correct 4 ms 1356 KB Output is correct
24 Correct 9 ms 1676 KB Output is correct
25 Correct 5 ms 1496 KB Output is correct
26 Correct 4 ms 1356 KB Output is correct
27 Correct 4 ms 1356 KB Output is correct
28 Correct 12 ms 2252 KB Output is correct
29 Correct 43 ms 4060 KB Output is correct
30 Correct 8 ms 1868 KB Output is correct
31 Correct 16 ms 2740 KB Output is correct
32 Correct 11 ms 2124 KB Output is correct
33 Correct 86 ms 7112 KB Output is correct
34 Correct 95 ms 7068 KB Output is correct
35 Correct 86 ms 6480 KB Output is correct
36 Correct 10 ms 1996 KB Output is correct
37 Correct 171 ms 10024 KB Output is correct
38 Correct 129 ms 9484 KB Output is correct
39 Correct 126 ms 9532 KB Output is correct
40 Correct 144 ms 9500 KB Output is correct
41 Correct 170 ms 9504 KB Output is correct
42 Correct 12 ms 1612 KB Output is correct
43 Correct 9 ms 1612 KB Output is correct
44 Correct 9 ms 1356 KB Output is correct
45 Correct 524 ms 25748 KB Output is correct
46 Correct 437 ms 25688 KB Output is correct

Subtask #5
0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 1100 KB Output is correct
11 Correct 3 ms 1228 KB Output is correct
12 Correct 1 ms 972 KB Output is correct
13 Correct 1 ms 972 KB Output is correct
14 Correct 3 ms 1356 KB Output is correct
15 Correct 3 ms 1356 KB Output is correct
16 Correct 1 ms 972 KB Output is correct
17 Correct 8 ms 1688 KB Output is correct
18 Correct 1 ms 972 KB Output is correct
19 Correct 1 ms 972 KB Output is correct
20 Correct 2 ms 1160 KB Output is correct
21 Correct 1 ms 972 KB Output is correct
22 Correct 1 ms 972 KB Output is correct
23 Correct 5 ms 1356 KB Output is correct
24 Correct 7 ms 1612 KB Output is correct
25 Correct 4 ms 1420 KB Output is correct
26 Correct 4 ms 1356 KB Output is correct
27 Correct 4 ms 1292 KB Output is correct
28 Correct 11 ms 2252 KB Output is correct
29 Correct 33 ms 4056 KB Output is correct
30 Correct 8 ms 1868 KB Output is correct
31 Correct 16 ms 2764 KB Output is correct
32 Correct 10 ms 2124 KB Output is correct
33 Correct 79 ms 7068 KB Output is correct
34 Correct 85 ms 7224 KB Output is correct
35 Correct 74 ms 6456 KB Output is correct
36 Correct 11 ms 1964 KB Output is correct
37 Correct 140 ms 10008 KB Output is correct
38 Correct 136 ms 9520 KB Output is correct
39 Correct 139 ms 9460 KB Output is correct
40 Correct 159 ms 9516 KB Output is correct
41 Correct 127 ms 9524 KB Output is correct
42 Correct 9 ms 1612 KB Output is correct
43 Correct 8 ms 1612 KB Output is correct
44 Correct 9 ms 1380 KB Output is correct
45 Correct 466 ms 25748 KB Output is correct
46 Correct 451 ms 25680 KB Output is correct
47 Execution timed out 1094 ms 37924 KB Time limit exceeded
48 Halted 0 ms 0 KB -