#include <bits/stdc++.h>
using namespace std;
const int O = 3e4 + 5;
const int inf = 1e9;
int n, m, b[O], d[O], p[O];
main(){
ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
cin >> n >> m;
for (int i = 1; i <= m; ++ i){
cin >> b[i] >> p[i];
}
for (int i = 1; i <= m; ++ i) d[i] = inf;
d[1] = 0;
priority_queue <pair <int, int>, vector <pair <int, int>>, greater <pair <int, int>>> q;
q.push(make_pair(0, 1));
while (q.size()){
int u = q.top().second;
int du = q.top().first;
q.pop();
if (du != d[u]) continue;
for (int v = 1; v <= m; ++ v){
if (v != u && d[v] > d[u] + abs(b[u] - b[v]) / p[u] && abs(b[u] - b[v]) % p[u] == 0){
d[v] = d[u] + abs(b[u] - b[v]) / p[u];
q.push(make_pair(d[v], v));
}
}
}
if (d[2] >= inf) cout << -1;
else cout << d[2];
}
Compilation message
skyscraper.cpp:10:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
10 | main(){
| ^~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
208 KB |
Output is correct |
| 3 |
Correct |
1 ms |
208 KB |
Output is correct |
| 4 |
Correct |
1 ms |
336 KB |
Output is correct |
| 5 |
Correct |
0 ms |
208 KB |
Output is correct |
| 6 |
Correct |
1 ms |
324 KB |
Output is correct |
| 7 |
Correct |
0 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
208 KB |
Output is correct |
| 2 |
Correct |
1 ms |
208 KB |
Output is correct |
| 3 |
Correct |
1 ms |
208 KB |
Output is correct |
| 4 |
Correct |
0 ms |
208 KB |
Output is correct |
| 5 |
Correct |
0 ms |
208 KB |
Output is correct |
| 6 |
Correct |
1 ms |
208 KB |
Output is correct |
| 7 |
Correct |
0 ms |
336 KB |
Output is correct |
| 8 |
Correct |
1 ms |
324 KB |
Output is correct |
| 9 |
Correct |
1 ms |
208 KB |
Output is correct |
| 10 |
Correct |
2 ms |
336 KB |
Output is correct |
| 11 |
Correct |
26 ms |
336 KB |
Output is correct |
| 12 |
Correct |
23 ms |
400 KB |
Output is correct |
| 13 |
Correct |
23 ms |
336 KB |
Output is correct |
| 14 |
Correct |
24 ms |
464 KB |
Output is correct |
| 15 |
Correct |
23 ms |
464 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
208 KB |
Output is correct |
| 2 |
Correct |
0 ms |
208 KB |
Output is correct |
| 3 |
Correct |
0 ms |
336 KB |
Output is correct |
| 4 |
Correct |
0 ms |
208 KB |
Output is correct |
| 5 |
Correct |
1 ms |
208 KB |
Output is correct |
| 6 |
Correct |
0 ms |
336 KB |
Output is correct |
| 7 |
Correct |
0 ms |
208 KB |
Output is correct |
| 8 |
Correct |
1 ms |
324 KB |
Output is correct |
| 9 |
Correct |
1 ms |
208 KB |
Output is correct |
| 10 |
Correct |
2 ms |
336 KB |
Output is correct |
| 11 |
Correct |
26 ms |
336 KB |
Output is correct |
| 12 |
Correct |
23 ms |
404 KB |
Output is correct |
| 13 |
Correct |
23 ms |
336 KB |
Output is correct |
| 14 |
Correct |
23 ms |
484 KB |
Output is correct |
| 15 |
Correct |
25 ms |
464 KB |
Output is correct |
| 16 |
Correct |
1 ms |
336 KB |
Output is correct |
| 17 |
Correct |
23 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 |
30 ms |
408 KB |
Output is correct |
| 21 |
Correct |
1 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
336 KB |
Output is correct |
| 23 |
Correct |
6 ms |
336 KB |
Output is correct |
| 24 |
Correct |
25 ms |
412 KB |
Output is correct |
| 25 |
Correct |
26 ms |
336 KB |
Output is correct |
| 26 |
Correct |
23 ms |
404 KB |
Output is correct |
| 27 |
Correct |
23 ms |
336 KB |
Output is correct |
| 28 |
Correct |
26 ms |
336 KB |
Output is correct |
| 29 |
Correct |
4 ms |
336 KB |
Output is correct |
| 30 |
Correct |
1 ms |
336 KB |
Output is correct |
| 31 |
Correct |
3 ms |
336 KB |
Output is correct |
| 32 |
Correct |
2 ms |
336 KB |
Output is correct |
| 33 |
Correct |
24 ms |
464 KB |
Output is correct |
| 34 |
Correct |
24 ms |
464 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
208 KB |
Output is correct |
| 2 |
Correct |
1 ms |
208 KB |
Output is correct |
| 3 |
Correct |
0 ms |
320 KB |
Output is correct |
| 4 |
Correct |
0 ms |
208 KB |
Output is correct |
| 5 |
Correct |
1 ms |
336 KB |
Output is correct |
| 6 |
Correct |
0 ms |
208 KB |
Output is correct |
| 7 |
Correct |
0 ms |
208 KB |
Output is correct |
| 8 |
Correct |
1 ms |
208 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
2 ms |
336 KB |
Output is correct |
| 11 |
Correct |
26 ms |
432 KB |
Output is correct |
| 12 |
Correct |
22 ms |
392 KB |
Output is correct |
| 13 |
Correct |
23 ms |
336 KB |
Output is correct |
| 14 |
Correct |
24 ms |
464 KB |
Output is correct |
| 15 |
Correct |
23 ms |
464 KB |
Output is correct |
| 16 |
Correct |
1 ms |
336 KB |
Output is correct |
| 17 |
Correct |
24 ms |
336 KB |
Output is correct |
| 18 |
Correct |
1 ms |
336 KB |
Output is correct |
| 19 |
Correct |
1 ms |
328 KB |
Output is correct |
| 20 |
Correct |
29 ms |
336 KB |
Output is correct |
| 21 |
Correct |
1 ms |
324 KB |
Output is correct |
| 22 |
Correct |
1 ms |
336 KB |
Output is correct |
| 23 |
Correct |
6 ms |
336 KB |
Output is correct |
| 24 |
Correct |
25 ms |
336 KB |
Output is correct |
| 25 |
Correct |
26 ms |
336 KB |
Output is correct |
| 26 |
Correct |
28 ms |
336 KB |
Output is correct |
| 27 |
Correct |
23 ms |
408 KB |
Output is correct |
| 28 |
Correct |
27 ms |
376 KB |
Output is correct |
| 29 |
Correct |
4 ms |
336 KB |
Output is correct |
| 30 |
Correct |
1 ms |
336 KB |
Output is correct |
| 31 |
Correct |
3 ms |
336 KB |
Output is correct |
| 32 |
Correct |
2 ms |
336 KB |
Output is correct |
| 33 |
Correct |
24 ms |
464 KB |
Output is correct |
| 34 |
Correct |
24 ms |
484 KB |
Output is correct |
| 35 |
Execution timed out |
1095 ms |
1548 KB |
Time limit exceeded |
| 36 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
208 KB |
Output is correct |
| 2 |
Correct |
0 ms |
208 KB |
Output is correct |
| 3 |
Correct |
0 ms |
208 KB |
Output is correct |
| 4 |
Correct |
0 ms |
208 KB |
Output is correct |
| 5 |
Correct |
0 ms |
208 KB |
Output is correct |
| 6 |
Correct |
1 ms |
208 KB |
Output is correct |
| 7 |
Correct |
1 ms |
208 KB |
Output is correct |
| 8 |
Correct |
1 ms |
336 KB |
Output is correct |
| 9 |
Correct |
1 ms |
208 KB |
Output is correct |
| 10 |
Correct |
2 ms |
348 KB |
Output is correct |
| 11 |
Correct |
26 ms |
444 KB |
Output is correct |
| 12 |
Correct |
23 ms |
412 KB |
Output is correct |
| 13 |
Correct |
22 ms |
348 KB |
Output is correct |
| 14 |
Correct |
23 ms |
484 KB |
Output is correct |
| 15 |
Correct |
24 ms |
476 KB |
Output is correct |
| 16 |
Correct |
1 ms |
336 KB |
Output is correct |
| 17 |
Correct |
23 ms |
476 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
1 ms |
348 KB |
Output is correct |
| 20 |
Correct |
29 ms |
416 KB |
Output is correct |
| 21 |
Correct |
1 ms |
344 KB |
Output is correct |
| 22 |
Correct |
1 ms |
336 KB |
Output is correct |
| 23 |
Correct |
7 ms |
336 KB |
Output is correct |
| 24 |
Correct |
25 ms |
408 KB |
Output is correct |
| 25 |
Correct |
26 ms |
428 KB |
Output is correct |
| 26 |
Correct |
24 ms |
336 KB |
Output is correct |
| 27 |
Correct |
23 ms |
408 KB |
Output is correct |
| 28 |
Correct |
26 ms |
336 KB |
Output is correct |
| 29 |
Correct |
4 ms |
336 KB |
Output is correct |
| 30 |
Correct |
1 ms |
336 KB |
Output is correct |
| 31 |
Correct |
3 ms |
336 KB |
Output is correct |
| 32 |
Correct |
3 ms |
356 KB |
Output is correct |
| 33 |
Correct |
30 ms |
480 KB |
Output is correct |
| 34 |
Correct |
26 ms |
464 KB |
Output is correct |
| 35 |
Execution timed out |
1083 ms |
1492 KB |
Time limit exceeded |
| 36 |
Halted |
0 ms |
0 KB |
- |
