oj.uz

Submission #660799

# Submission time Handle Problem Language Result Execution time Memory
660799 2022-11-23T08:50:59 Z velislavgarkov Jakarta Skyscrapers (APIO15_skyscraper) C++14
36 / 100
 315 ms 262144 KB 
#include <iostream>
#include <vector>
#include <queue>
using namespace std;
const int MAXN=3e4+10;
vector <pair <int,int> > v[MAXN];
priority_queue <pair <int,int> > q;
int ans[MAXN];
void dejkstra(int start) {
    ans[start]=0;
    q.push({0,start});
    while (!q.empty()) {
        int x=q.top().second;
        if (-q.top().first!=ans[x]) {
            q.pop();
            continue;
        }
        q.pop();
        for (auto i:v[x]) {
            if (ans[i.first]==-1 || ans[i.first]>ans[x]+i.second) {
                ans[i.first]=ans[x]+i.second;
                q.push({-ans[i.first],i.first});
            }
        }
    }
}
int main () {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int n, m, beg, steps, start, ed;
    cin >> n >> m;
    for (int j=0;j<m;j++) {
        cin >> beg >> steps;
        if (j==0) start=beg;
        if (j==1) ed=beg;
        int br=1;
        for (int i=beg+steps;i<n;i+=steps) {
            v[beg].push_back({i,br});
            br++;
        }
        br=1;
        for (int i=beg-steps;i>=0;i-=steps) {
            v[beg].push_back({i,br});
            br++;
        }
    }
    for (int i=0;i<n;i++) ans[i]=-1;
    dejkstra(start);
    cout << ans[ed] << endl;
    return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:50:19: warning: 'ed' may be used uninitialized in this function [-Wmaybe-uninitialized]
   50 |     cout << ans[ed] << endl;
      |                   ^
skyscraper.cpp:49:13: warning: 'start' may be used uninitialized in this function [-Wmaybe-uninitialized]
   49 |     dejkstra(start);
      |     ~~~~~~~~^~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 1028 KB Output is correct
8 Correct 1 ms 1028 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 1032 KB Output is correct
11 Correct 2 ms 1040 KB Output is correct
12 Correct 5 ms 3216 KB Output is correct
13 Correct 5 ms 3136 KB Output is correct
14 Correct 1 ms 1108 KB Output is correct
15 Correct 1 ms 1068 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 1028 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Correct 1 ms 1108 KB Output is correct
12 Correct 4 ms 3152 KB Output is correct
13 Correct 5 ms 3220 KB Output is correct
14 Correct 2 ms 980 KB Output is correct
15 Correct 1 ms 1036 KB Output is correct
16 Correct 1 ms 980 KB Output is correct
17 Correct 2 ms 1236 KB Output is correct
18 Correct 1 ms 1108 KB Output is correct
19 Correct 1 ms 980 KB Output is correct
20 Correct 54 ms 33056 KB Output is correct
21 Correct 1 ms 980 KB Output is correct
22 Correct 1 ms 980 KB Output is correct
23 Correct 1 ms 1108 KB Output is correct
24 Correct 3 ms 1108 KB Output is correct
25 Correct 2 ms 1172 KB Output is correct
26 Correct 61 ms 34076 KB Output is correct
27 Correct 60 ms 34048 KB Output is correct
28 Correct 2 ms 1236 KB Output is correct
29 Correct 3 ms 1876 KB Output is correct
30 Correct 2 ms 1364 KB Output is correct
31 Correct 3 ms 1492 KB Output is correct
32 Correct 2 ms 1364 KB Output is correct
33 Correct 4 ms 2388 KB Output is correct
34 Correct 4 ms 2516 KB Output is correct

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 1036 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 1032 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Correct 2 ms 1044 KB Output is correct
12 Correct 5 ms 3152 KB Output is correct
13 Correct 6 ms 3160 KB Output is correct
14 Correct 1 ms 1108 KB Output is correct
15 Correct 2 ms 980 KB Output is correct
16 Correct 1 ms 980 KB Output is correct
17 Correct 2 ms 1236 KB Output is correct
18 Correct 1 ms 1108 KB Output is correct
19 Correct 1 ms 980 KB Output is correct
20 Correct 60 ms 33128 KB Output is correct
21 Correct 1 ms 1040 KB Output is correct
22 Correct 2 ms 1124 KB Output is correct
23 Correct 1 ms 1108 KB Output is correct
24 Correct 2 ms 1108 KB Output is correct
25 Correct 2 ms 1108 KB Output is correct
26 Correct 61 ms 34084 KB Output is correct
27 Correct 59 ms 33976 KB Output is correct
28 Correct 2 ms 1236 KB Output is correct
29 Correct 3 ms 1876 KB Output is correct
30 Correct 2 ms 1364 KB Output is correct
31 Correct 2 ms 1492 KB Output is correct
32 Correct 2 ms 1364 KB Output is correct
33 Correct 4 ms 2388 KB Output is correct
34 Correct 4 ms 2516 KB Output is correct
35 Correct 7 ms 2792 KB Output is correct
36 Correct 2 ms 1224 KB Output is correct
37 Correct 10 ms 4508 KB Output is correct
38 Correct 11 ms 3796 KB Output is correct
39 Correct 10 ms 4052 KB Output is correct
40 Correct 10 ms 3968 KB Output is correct
41 Correct 10 ms 3796 KB Output is correct
42 Runtime error 304 ms 262144 KB Execution killed with signal 9
43 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Correct 1 ms 1108 KB Output is correct
12 Correct 4 ms 3152 KB Output is correct
13 Correct 4 ms 3160 KB Output is correct
14 Correct 2 ms 980 KB Output is correct
15 Correct 1 ms 980 KB Output is correct
16 Correct 1 ms 980 KB Output is correct
17 Correct 3 ms 1236 KB Output is correct
18 Correct 2 ms 1108 KB Output is correct
19 Correct 2 ms 980 KB Output is correct
20 Correct 57 ms 33152 KB Output is correct
21 Correct 1 ms 980 KB Output is correct
22 Correct 1 ms 1032 KB Output is correct
23 Correct 1 ms 1108 KB Output is correct
24 Correct 2 ms 1108 KB Output is correct
25 Correct 2 ms 1108 KB Output is correct
26 Correct 62 ms 34008 KB Output is correct
27 Correct 59 ms 34024 KB Output is correct
28 Correct 2 ms 1236 KB Output is correct
29 Correct 3 ms 1876 KB Output is correct
30 Correct 2 ms 1364 KB Output is correct
31 Correct 2 ms 1492 KB Output is correct
32 Correct 2 ms 1364 KB Output is correct
33 Correct 4 ms 2388 KB Output is correct
34 Correct 4 ms 2516 KB Output is correct
35 Correct 9 ms 2772 KB Output is correct
36 Correct 2 ms 1236 KB Output is correct
37 Correct 9 ms 4436 KB Output is correct
38 Correct 10 ms 3888 KB Output is correct
39 Correct 11 ms 4028 KB Output is correct
40 Correct 10 ms 3924 KB Output is correct
41 Correct 10 ms 3856 KB Output is correct
42 Runtime error 315 ms 262144 KB Execution killed with signal 9
43 Halted 0 ms 0 KB -