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답안 #308902

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
308902 2020-10-02T08:01:28 Z jainbot27 Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 910 ms 3828 KB 
#include <bits/stdc++.h>
using namespace std;

#define f first
#define s second
#define pb push_back
#define ar array
#define all(x) x.begin(), x.end()
#define siz(x) (int)x.size()

#define FOR(x, y, z) for(int x = (y); x < (z); x++)
#define ROF(x, z, y) for(int x = (y-1); x >= (z); x--)
#define F0R(x, z) FOR(x, 0, z)
#define R0F(x, z) ROF(x, 0, z)
#define trav(x, y) for(auto&x:y)

using ll = long long;
using vi = vector<int>;
using vl = vector<long long>;
using pii = pair<int, int>;
using vpii = vector<pair<int, int>>;

template<class T> inline bool ckmin(T&a, T b) {return b < a ? a = b, 1 : 0;}
template<class T> inline bool ckmax(T&a, T b) {return b > a ? a = b, 1 : 0;}
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const char nl = '\n';
const int mxN = 3e4 + 10;
const int MOD = 1e9 + 7;
const long long infLL = 1e18;

int n, m, pos[mxN], dist[mxN], len[mxN]; vi nodes[mxN]; bool done[mxN];
priority_queue<pii, vpii, greater<pii>> pq;
int32_t main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> n >> m;
    memset(len, 0x3f, sizeof(len));
    F0R(i, m){
        cin >> pos[i] >> dist[i];
        nodes[pos[i]].pb(dist[i]);
    }
    int F = pos[0], S = pos[1];
    len[pos[0]] = 0;
    pq.push({0, pos[0]});
    while(!pq.empty()){
        pii x = pq.top(); pq.pop();
        // cout << x.f << " " << x.s << endl;
        if(x.f!=len[x.s]) continue;
        if(x.s == S) break;
        trav(speed, nodes[x.s]){
            int p = x.s + speed;
            for(int i = 1; p < n; i++, p+=speed){
                if(ckmin(len[p], x.f+i)){
                    pq.push({len[p], p});
                } 
            }
            p = x.s - speed;
            for(int i = 1; p >= 0; i++, p-=speed){
                if(ckmin(len[p], x.f+i)){
                    pq.push({len[p], p});
                } 
            }
        }
    }
    cout << (len[S]>=MOD?-1:len[S]) << nl;
    return 0;
}

Compilation message

skyscraper.cpp: In function 'int32_t main()':
skyscraper.cpp:42:9: warning: unused variable 'F' [-Wunused-variable]
   42 |     int F = pos[0], S = pos[1];
      |         ^

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1152 KB Output is correct
2 Correct 1 ms 1152 KB Output is correct
3 Correct 1 ms 1152 KB Output is correct
4 Correct 1 ms 1152 KB Output is correct
5 Correct 1 ms 1152 KB Output is correct
6 Correct 1 ms 1152 KB Output is correct
7 Correct 1 ms 1152 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1152 KB Output is correct
2 Correct 1 ms 1152 KB Output is correct
3 Correct 1 ms 1152 KB Output is correct
4 Correct 2 ms 1152 KB Output is correct
5 Correct 1 ms 1152 KB Output is correct
6 Correct 1 ms 1152 KB Output is correct
7 Correct 1 ms 1152 KB Output is correct
8 Correct 1 ms 1152 KB Output is correct
9 Correct 1 ms 1152 KB Output is correct
10 Correct 1 ms 1152 KB Output is correct
11 Correct 1 ms 1152 KB Output is correct
12 Correct 1 ms 1152 KB Output is correct
13 Correct 1 ms 1152 KB Output is correct
14 Correct 2 ms 1152 KB Output is correct
15 Correct 1 ms 1152 KB Output is correct

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1152 KB Output is correct
2 Correct 1 ms 1152 KB Output is correct
3 Correct 1 ms 1152 KB Output is correct
4 Correct 1 ms 1152 KB Output is correct
5 Correct 1 ms 1152 KB Output is correct
6 Correct 1 ms 1152 KB Output is correct
7 Correct 1 ms 1152 KB Output is correct
8 Correct 1 ms 1152 KB Output is correct
9 Correct 1 ms 1152 KB Output is correct
10 Correct 1 ms 1152 KB Output is correct
11 Correct 2 ms 1152 KB Output is correct
12 Correct 1 ms 1152 KB Output is correct
13 Correct 1 ms 1152 KB Output is correct
14 Correct 1 ms 1152 KB Output is correct
15 Correct 1 ms 1152 KB Output is correct
16 Correct 1 ms 1152 KB Output is correct
17 Correct 2 ms 1280 KB Output is correct
18 Correct 1 ms 1152 KB Output is correct
19 Correct 1 ms 1152 KB Output is correct
20 Correct 6 ms 1280 KB Output is correct
21 Correct 1 ms 1152 KB Output is correct
22 Correct 2 ms 1152 KB Output is correct
23 Correct 1 ms 1280 KB Output is correct
24 Correct 2 ms 1280 KB Output is correct
25 Correct 1 ms 1280 KB Output is correct
26 Correct 2 ms 1152 KB Output is correct
27 Correct 2 ms 1152 KB Output is correct
28 Correct 2 ms 1280 KB Output is correct
29 Correct 3 ms 1408 KB Output is correct
30 Correct 2 ms 1280 KB Output is correct
31 Correct 2 ms 1280 KB Output is correct
32 Correct 2 ms 1280 KB Output is correct
33 Correct 3 ms 1408 KB Output is correct
34 Correct 3 ms 1408 KB Output is correct

Subtask #4
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1152 KB Output is correct
2 Correct 1 ms 1152 KB Output is correct
3 Correct 1 ms 1152 KB Output is correct
4 Correct 1 ms 1152 KB Output is correct
5 Correct 1 ms 1152 KB Output is correct
6 Correct 1 ms 1152 KB Output is correct
7 Correct 1 ms 1152 KB Output is correct
8 Correct 1 ms 1152 KB Output is correct
9 Correct 1 ms 1152 KB Output is correct
10 Correct 1 ms 1152 KB Output is correct
11 Correct 1 ms 1152 KB Output is correct
12 Correct 1 ms 1152 KB Output is correct
13 Correct 2 ms 1152 KB Output is correct
14 Correct 1 ms 1152 KB Output is correct
15 Correct 1 ms 1152 KB Output is correct
16 Correct 1 ms 1152 KB Output is correct
17 Correct 2 ms 1280 KB Output is correct
18 Correct 1 ms 1152 KB Output is correct
19 Correct 1 ms 1152 KB Output is correct
20 Correct 6 ms 1280 KB Output is correct
21 Correct 1 ms 1152 KB Output is correct
22 Correct 1 ms 1152 KB Output is correct
23 Correct 2 ms 1280 KB Output is correct
24 Correct 2 ms 1312 KB Output is correct
25 Correct 2 ms 1280 KB Output is correct
26 Correct 2 ms 1152 KB Output is correct
27 Correct 2 ms 1152 KB Output is correct
28 Correct 2 ms 1280 KB Output is correct
29 Correct 3 ms 1408 KB Output is correct
30 Correct 2 ms 1280 KB Output is correct
31 Correct 2 ms 1280 KB Output is correct
32 Correct 2 ms 1280 KB Output is correct
33 Correct 3 ms 1408 KB Output is correct
34 Correct 3 ms 1408 KB Output is correct
35 Correct 8 ms 1664 KB Output is correct
36 Correct 2 ms 1280 KB Output is correct
37 Correct 6 ms 1664 KB Output is correct
38 Correct 9 ms 1792 KB Output is correct
39 Correct 7 ms 1664 KB Output is correct
40 Correct 8 ms 1664 KB Output is correct
41 Correct 8 ms 1792 KB Output is correct
42 Correct 6 ms 1664 KB Output is correct
43 Correct 6 ms 1664 KB Output is correct
44 Correct 68 ms 1664 KB Output is correct
45 Correct 8 ms 1792 KB Output is correct
46 Correct 9 ms 1792 KB Output is correct

Subtask #5
43.0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1152 KB Output is correct
2 Correct 1 ms 1152 KB Output is correct
3 Correct 1 ms 1152 KB Output is correct
4 Correct 1 ms 1152 KB Output is correct
5 Correct 1 ms 1152 KB Output is correct
6 Correct 1 ms 1152 KB Output is correct
7 Correct 1 ms 1152 KB Output is correct
8 Correct 1 ms 1152 KB Output is correct
9 Correct 1 ms 1152 KB Output is correct
10 Correct 1 ms 1152 KB Output is correct
11 Correct 1 ms 1152 KB Output is correct
12 Correct 1 ms 1152 KB Output is correct
13 Correct 2 ms 1152 KB Output is correct
14 Correct 1 ms 1152 KB Output is correct
15 Correct 1 ms 1152 KB Output is correct
16 Correct 1 ms 1152 KB Output is correct
17 Correct 2 ms 1280 KB Output is correct
18 Correct 1 ms 1152 KB Output is correct
19 Correct 1 ms 1152 KB Output is correct
20 Correct 6 ms 1280 KB Output is correct
21 Correct 1 ms 1152 KB Output is correct
22 Correct 1 ms 1152 KB Output is correct
23 Correct 2 ms 1280 KB Output is correct
24 Correct 2 ms 1280 KB Output is correct
25 Correct 2 ms 1280 KB Output is correct
26 Correct 2 ms 1152 KB Output is correct
27 Correct 2 ms 1152 KB Output is correct
28 Correct 2 ms 1280 KB Output is correct
29 Correct 3 ms 1408 KB Output is correct
30 Correct 2 ms 1280 KB Output is correct
31 Correct 2 ms 1280 KB Output is correct
32 Correct 2 ms 1280 KB Output is correct
33 Correct 4 ms 1408 KB Output is correct
34 Correct 3 ms 1408 KB Output is correct
35 Correct 7 ms 1664 KB Output is correct
36 Correct 2 ms 1280 KB Output is correct
37 Correct 6 ms 1664 KB Output is correct
38 Correct 8 ms 1792 KB Output is correct
39 Correct 7 ms 1664 KB Output is correct
40 Correct 8 ms 1664 KB Output is correct
41 Correct 8 ms 1792 KB Output is correct
42 Correct 6 ms 1664 KB Output is correct
43 Correct 6 ms 1664 KB Output is correct
44 Correct 70 ms 1664 KB Output is correct
45 Correct 9 ms 1920 KB Output is correct
46 Correct 8 ms 1792 KB Output is correct
47 Correct 11 ms 2300 KB Output is correct
48 Correct 7 ms 1792 KB Output is correct
49 Correct 8 ms 1792 KB Output is correct
50 Correct 5 ms 1664 KB Output is correct
51 Correct 18 ms 3192 KB Output is correct
52 Correct 17 ms 2684 KB Output is correct
53 Correct 11 ms 2304 KB Output is correct
54 Correct 2 ms 1408 KB Output is correct
55 Correct 3 ms 1408 KB Output is correct
56 Correct 910 ms 2688 KB Output is correct
57 Correct 3 ms 1912 KB Output is correct
58 Correct 858 ms 1804 KB Output is correct
59 Correct 8 ms 1792 KB Output is correct
60 Correct 8 ms 1792 KB Output is correct
61 Correct 8 ms 1792 KB Output is correct
62 Correct 11 ms 2304 KB Output is correct
63 Correct 34 ms 2808 KB Output is correct
64 Correct 35 ms 3828 KB Output is correct
65 Correct 42 ms 3828 KB Output is correct
66 Correct 60 ms 3828 KB Output is correct
67 Correct 46 ms 3828 KB Output is correct