#include <bits/stdc++.h>
#define ll long long
using namespace std;
const int N = 3e4 + 10;
vector<vector<int>> g(N);
int main() {
ios_base::sync_with_stdio(0), cin.tie(0);
int n, m; cin >> n >> m;
int f, s;
for(short i = 0; i < m; i++) {
int x, y; cin >> x >> y;
if(i == 0) f = x;
if(i == 1) s = x;
if(y == 0) continue;
g[x].push_back(y);
}
priority_queue<pair<int, int>, vector<pair<int, int>>, greater<pair<int, int>>> c;
vector<int> d(n, 2e9);
d[f] = 0;
c.push({0, f});
while(!c.empty()) {
int u = c.top().second, w = c.top().first;
c.pop();
if(d[u] != w) continue;
if(u == s) {
cout << d[s];
return 0;
}
for(int x : g[u]) {
for(int j = u % x; j < n; j += x) {
if(d[j] > d[u] + abs(j - u) / x) {
d[j] = d[u] + abs(j - u) / x;
c.push({d[j], j});
}
}
}
}
cout << -1;
}
Compilation message
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:20:5: warning: 'f' may be used uninitialized in this function [-Wmaybe-uninitialized]
20 | d[f] = 0;
| ^
skyscraper.cpp:26:3: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized]
26 | if(u == s) {
| ^~
| # |
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 |
| # |
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 |
972 KB |
Output is correct |
| 11 |
Correct |
1 ms |
972 KB |
Output is correct |
| 12 |
Correct |
1 ms |
972 KB |
Output is correct |
| 13 |
Correct |
3 ms |
972 KB |
Output is correct |
| 14 |
Correct |
1 ms |
972 KB |
Output is correct |
| 15 |
Correct |
1 ms |
972 KB |
Output is correct |
| # |
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 |
972 KB |
Output is correct |
| 11 |
Correct |
1 ms |
972 KB |
Output is correct |
| 12 |
Correct |
2 ms |
972 KB |
Output is correct |
| 13 |
Correct |
2 ms |
972 KB |
Output is correct |
| 14 |
Correct |
1 ms |
972 KB |
Output is correct |
| 15 |
Correct |
1 ms |
972 KB |
Output is correct |
| 16 |
Correct |
1 ms |
972 KB |
Output is correct |
| 17 |
Correct |
2 ms |
972 KB |
Output is correct |
| 18 |
Correct |
1 ms |
972 KB |
Output is correct |
| 19 |
Correct |
1 ms |
972 KB |
Output is correct |
| 20 |
Correct |
29 ms |
1100 KB |
Output is correct |
| 21 |
Correct |
1 ms |
972 KB |
Output is correct |
| 22 |
Correct |
1 ms |
972 KB |
Output is correct |
| 23 |
Correct |
1 ms |
972 KB |
Output is correct |
| 24 |
Correct |
2 ms |
1100 KB |
Output is correct |
| 25 |
Correct |
1 ms |
972 KB |
Output is correct |
| 26 |
Correct |
1 ms |
972 KB |
Output is correct |
| 27 |
Correct |
1 ms |
972 KB |
Output is correct |
| 28 |
Correct |
2 ms |
1100 KB |
Output is correct |
| 29 |
Correct |
3 ms |
1228 KB |
Output is correct |
| 30 |
Correct |
2 ms |
1100 KB |
Output is correct |
| 31 |
Correct |
2 ms |
1100 KB |
Output is correct |
| 32 |
Correct |
2 ms |
1100 KB |
Output is correct |
| 33 |
Correct |
4 ms |
1228 KB |
Output is correct |
| 34 |
Correct |
3 ms |
1228 KB |
Output is correct |
| # |
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 |
972 KB |
Output is correct |
| 11 |
Correct |
1 ms |
972 KB |
Output is correct |
| 12 |
Correct |
1 ms |
972 KB |
Output is correct |
| 13 |
Correct |
6 ms |
972 KB |
Output is correct |
| 14 |
Correct |
1 ms |
972 KB |
Output is correct |
| 15 |
Correct |
1 ms |
972 KB |
Output is correct |
| 16 |
Correct |
1 ms |
972 KB |
Output is correct |
| 17 |
Correct |
1 ms |
972 KB |
Output is correct |
| 18 |
Correct |
1 ms |
972 KB |
Output is correct |
| 19 |
Correct |
1 ms |
972 KB |
Output is correct |
| 20 |
Correct |
30 ms |
1100 KB |
Output is correct |
| 21 |
Correct |
1 ms |
972 KB |
Output is correct |
| 22 |
Correct |
2 ms |
972 KB |
Output is correct |
| 23 |
Correct |
2 ms |
972 KB |
Output is correct |
| 24 |
Correct |
2 ms |
1100 KB |
Output is correct |
| 25 |
Correct |
2 ms |
972 KB |
Output is correct |
| 26 |
Correct |
1 ms |
972 KB |
Output is correct |
| 27 |
Correct |
2 ms |
972 KB |
Output is correct |
| 28 |
Correct |
2 ms |
972 KB |
Output is correct |
| 29 |
Correct |
3 ms |
1228 KB |
Output is correct |
| 30 |
Correct |
2 ms |
1100 KB |
Output is correct |
| 31 |
Correct |
2 ms |
1100 KB |
Output is correct |
| 32 |
Correct |
2 ms |
1100 KB |
Output is correct |
| 33 |
Correct |
4 ms |
1228 KB |
Output is correct |
| 34 |
Correct |
3 ms |
1228 KB |
Output is correct |
| 35 |
Correct |
8 ms |
1228 KB |
Output is correct |
| 36 |
Correct |
2 ms |
1100 KB |
Output is correct |
| 37 |
Correct |
7 ms |
1316 KB |
Output is correct |
| 38 |
Correct |
8 ms |
1356 KB |
Output is correct |
| 39 |
Correct |
8 ms |
1232 KB |
Output is correct |
| 40 |
Correct |
8 ms |
1224 KB |
Output is correct |
| 41 |
Correct |
8 ms |
1356 KB |
Output is correct |
| 42 |
Correct |
6 ms |
1484 KB |
Output is correct |
| 43 |
Correct |
6 ms |
1484 KB |
Output is correct |
| 44 |
Correct |
425 ms |
1464 KB |
Output is correct |
| 45 |
Correct |
11 ms |
1612 KB |
Output is correct |
| 46 |
Correct |
10 ms |
1612 KB |
Output is correct |
| # |
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 |
972 KB |
Output is correct |
| 11 |
Correct |
1 ms |
972 KB |
Output is correct |
| 12 |
Correct |
1 ms |
972 KB |
Output is correct |
| 13 |
Correct |
2 ms |
972 KB |
Output is correct |
| 14 |
Correct |
1 ms |
972 KB |
Output is correct |
| 15 |
Correct |
1 ms |
972 KB |
Output is correct |
| 16 |
Correct |
1 ms |
972 KB |
Output is correct |
| 17 |
Correct |
1 ms |
972 KB |
Output is correct |
| 18 |
Correct |
1 ms |
972 KB |
Output is correct |
| 19 |
Correct |
1 ms |
972 KB |
Output is correct |
| 20 |
Correct |
29 ms |
1132 KB |
Output is correct |
| 21 |
Correct |
1 ms |
972 KB |
Output is correct |
| 22 |
Correct |
1 ms |
972 KB |
Output is correct |
| 23 |
Correct |
1 ms |
972 KB |
Output is correct |
| 24 |
Correct |
2 ms |
972 KB |
Output is correct |
| 25 |
Correct |
2 ms |
972 KB |
Output is correct |
| 26 |
Correct |
1 ms |
972 KB |
Output is correct |
| 27 |
Correct |
2 ms |
972 KB |
Output is correct |
| 28 |
Correct |
2 ms |
972 KB |
Output is correct |
| 29 |
Correct |
3 ms |
1228 KB |
Output is correct |
| 30 |
Correct |
2 ms |
1100 KB |
Output is correct |
| 31 |
Correct |
2 ms |
1100 KB |
Output is correct |
| 32 |
Correct |
2 ms |
1100 KB |
Output is correct |
| 33 |
Correct |
4 ms |
1284 KB |
Output is correct |
| 34 |
Correct |
3 ms |
1228 KB |
Output is correct |
| 35 |
Correct |
8 ms |
1248 KB |
Output is correct |
| 36 |
Correct |
2 ms |
1100 KB |
Output is correct |
| 37 |
Correct |
7 ms |
1228 KB |
Output is correct |
| 38 |
Correct |
9 ms |
1356 KB |
Output is correct |
| 39 |
Correct |
8 ms |
1260 KB |
Output is correct |
| 40 |
Correct |
8 ms |
1228 KB |
Output is correct |
| 41 |
Correct |
11 ms |
1356 KB |
Output is correct |
| 42 |
Correct |
6 ms |
1460 KB |
Output is correct |
| 43 |
Correct |
6 ms |
1484 KB |
Output is correct |
| 44 |
Correct |
418 ms |
1484 KB |
Output is correct |
| 45 |
Correct |
11 ms |
1612 KB |
Output is correct |
| 46 |
Correct |
10 ms |
1612 KB |
Output is correct |
| 47 |
Correct |
13 ms |
2248 KB |
Output is correct |
| 48 |
Correct |
8 ms |
1740 KB |
Output is correct |
| 49 |
Correct |
8 ms |
1740 KB |
Output is correct |
| 50 |
Correct |
7 ms |
1556 KB |
Output is correct |
| 51 |
Correct |
18 ms |
3140 KB |
Output is correct |
| 52 |
Correct |
18 ms |
2608 KB |
Output is correct |
| 53 |
Correct |
11 ms |
2264 KB |
Output is correct |
| 54 |
Correct |
2 ms |
1356 KB |
Output is correct |
| 55 |
Correct |
3 ms |
1356 KB |
Output is correct |
| 56 |
Execution timed out |
1095 ms |
2600 KB |
Time limit exceeded |
| 57 |
Halted |
0 ms |
0 KB |
- |
