#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
const int N = 3e4 + 7;
vector <pair <int, int>> g[N];
int d[N];
const int Inf = 1e9;
int main() {
ios_base::sync_with_stdio(false); cin.tie(0); cout.setf(ios::fixed); cout.precision(20);
#ifdef LOCAL
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
int n, m;
cin >> n >> m;
vector <int> b(m), p(m);
for (int i = 0; i < m; ++i) {
cin >> b[i] >> p[i];
}
for (int i = 0; i < m; ++i) {
for (int j = 0; j < m; ++j) {
if (i == j) continue;
if ((b[i] - b[j]) % p[i] == 0) {
g[i].emplace_back(j, abs(b[i] - b[j]) / p[i]);
}
}
}
for (int i = 0; i < m; ++i) d[i] = Inf;
d[0] = 0;
set <pair <int, int>> q;
q.insert({0, 0});
while (!q.empty()) {
auto p = *q.begin();
q.erase(q.begin());
int u = p.second;
for (auto &[v, w] : g[u]) {
if (d[v] > d[u] + w) {
q.erase({d[v], v});
d[v] = d[u] + w;
q.insert({d[v], v});
}
}
}
cout << (d[1] == Inf ? -1 : d[1]) << '\n';
}
Compilation message
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:42:20: warning: decomposition declaration only available with -std=c++1z or -std=gnu++1z
for (auto &[v, w] : g[u]) {
^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
1024 KB |
Output is correct |
2 |
Correct |
2 ms |
1024 KB |
Output is correct |
3 |
Correct |
3 ms |
1024 KB |
Output is correct |
4 |
Correct |
3 ms |
1024 KB |
Output is correct |
5 |
Correct |
2 ms |
1024 KB |
Output is correct |
6 |
Correct |
2 ms |
1024 KB |
Output is correct |
7 |
Correct |
2 ms |
1024 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
1024 KB |
Output is correct |
2 |
Correct |
2 ms |
1024 KB |
Output is correct |
3 |
Correct |
2 ms |
1024 KB |
Output is correct |
4 |
Correct |
3 ms |
1024 KB |
Output is correct |
5 |
Correct |
3 ms |
1024 KB |
Output is correct |
6 |
Correct |
3 ms |
1024 KB |
Output is correct |
7 |
Correct |
3 ms |
1024 KB |
Output is correct |
8 |
Correct |
2 ms |
1024 KB |
Output is correct |
9 |
Correct |
2 ms |
1024 KB |
Output is correct |
10 |
Correct |
3 ms |
1152 KB |
Output is correct |
11 |
Correct |
28 ms |
3192 KB |
Output is correct |
12 |
Correct |
74 ms |
33044 KB |
Output is correct |
13 |
Correct |
73 ms |
33272 KB |
Output is correct |
14 |
Correct |
25 ms |
2552 KB |
Output is correct |
15 |
Correct |
26 ms |
2560 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
1024 KB |
Output is correct |
2 |
Correct |
3 ms |
1024 KB |
Output is correct |
3 |
Correct |
2 ms |
1152 KB |
Output is correct |
4 |
Correct |
3 ms |
1024 KB |
Output is correct |
5 |
Correct |
2 ms |
1024 KB |
Output is correct |
6 |
Correct |
2 ms |
1024 KB |
Output is correct |
7 |
Correct |
3 ms |
1024 KB |
Output is correct |
8 |
Correct |
2 ms |
1024 KB |
Output is correct |
9 |
Correct |
3 ms |
1024 KB |
Output is correct |
10 |
Correct |
4 ms |
1152 KB |
Output is correct |
11 |
Correct |
27 ms |
3200 KB |
Output is correct |
12 |
Correct |
75 ms |
33132 KB |
Output is correct |
13 |
Correct |
74 ms |
33272 KB |
Output is correct |
14 |
Correct |
26 ms |
2552 KB |
Output is correct |
15 |
Correct |
26 ms |
2552 KB |
Output is correct |
16 |
Correct |
6 ms |
1280 KB |
Output is correct |
17 |
Correct |
19 ms |
1792 KB |
Output is correct |
18 |
Correct |
7 ms |
1152 KB |
Output is correct |
19 |
Correct |
4 ms |
1152 KB |
Output is correct |
20 |
Correct |
89 ms |
33272 KB |
Output is correct |
21 |
Correct |
9 ms |
1280 KB |
Output is correct |
22 |
Correct |
5 ms |
1024 KB |
Output is correct |
23 |
Correct |
7 ms |
1152 KB |
Output is correct |
24 |
Correct |
19 ms |
1280 KB |
Output is correct |
25 |
Correct |
20 ms |
1280 KB |
Output is correct |
26 |
Correct |
70 ms |
30300 KB |
Output is correct |
27 |
Correct |
74 ms |
31096 KB |
Output is correct |
28 |
Correct |
21 ms |
1280 KB |
Output is correct |
29 |
Correct |
6 ms |
1280 KB |
Output is correct |
30 |
Correct |
3 ms |
1024 KB |
Output is correct |
31 |
Correct |
5 ms |
1152 KB |
Output is correct |
32 |
Correct |
4 ms |
1152 KB |
Output is correct |
33 |
Correct |
27 ms |
2552 KB |
Output is correct |
34 |
Correct |
26 ms |
2552 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
1024 KB |
Output is correct |
2 |
Correct |
3 ms |
1024 KB |
Output is correct |
3 |
Correct |
3 ms |
1024 KB |
Output is correct |
4 |
Correct |
3 ms |
1024 KB |
Output is correct |
5 |
Correct |
3 ms |
1024 KB |
Output is correct |
6 |
Correct |
3 ms |
1024 KB |
Output is correct |
7 |
Correct |
3 ms |
1024 KB |
Output is correct |
8 |
Correct |
2 ms |
896 KB |
Output is correct |
9 |
Correct |
3 ms |
1024 KB |
Output is correct |
10 |
Correct |
4 ms |
1152 KB |
Output is correct |
11 |
Correct |
29 ms |
3320 KB |
Output is correct |
12 |
Correct |
75 ms |
33272 KB |
Output is correct |
13 |
Correct |
73 ms |
33400 KB |
Output is correct |
14 |
Correct |
25 ms |
2552 KB |
Output is correct |
15 |
Correct |
26 ms |
2680 KB |
Output is correct |
16 |
Correct |
6 ms |
1408 KB |
Output is correct |
17 |
Correct |
19 ms |
1764 KB |
Output is correct |
18 |
Correct |
7 ms |
1152 KB |
Output is correct |
19 |
Correct |
5 ms |
1152 KB |
Output is correct |
20 |
Correct |
77 ms |
33272 KB |
Output is correct |
21 |
Correct |
8 ms |
1152 KB |
Output is correct |
22 |
Correct |
4 ms |
1024 KB |
Output is correct |
23 |
Correct |
11 ms |
1152 KB |
Output is correct |
24 |
Correct |
19 ms |
1252 KB |
Output is correct |
25 |
Correct |
20 ms |
1280 KB |
Output is correct |
26 |
Correct |
67 ms |
30200 KB |
Output is correct |
27 |
Correct |
69 ms |
31096 KB |
Output is correct |
28 |
Correct |
20 ms |
1252 KB |
Output is correct |
29 |
Correct |
6 ms |
1280 KB |
Output is correct |
30 |
Correct |
3 ms |
1152 KB |
Output is correct |
31 |
Correct |
5 ms |
1152 KB |
Output is correct |
32 |
Correct |
4 ms |
1152 KB |
Output is correct |
33 |
Correct |
26 ms |
2548 KB |
Output is correct |
34 |
Correct |
26 ms |
2560 KB |
Output is correct |
35 |
Execution timed out |
1069 ms |
13172 KB |
Time limit exceeded |
36 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
1024 KB |
Output is correct |
2 |
Correct |
2 ms |
1024 KB |
Output is correct |
3 |
Correct |
3 ms |
1024 KB |
Output is correct |
4 |
Correct |
2 ms |
1024 KB |
Output is correct |
5 |
Correct |
2 ms |
1024 KB |
Output is correct |
6 |
Correct |
2 ms |
1024 KB |
Output is correct |
7 |
Correct |
2 ms |
1024 KB |
Output is correct |
8 |
Correct |
3 ms |
1024 KB |
Output is correct |
9 |
Correct |
2 ms |
1024 KB |
Output is correct |
10 |
Correct |
4 ms |
1152 KB |
Output is correct |
11 |
Correct |
27 ms |
3328 KB |
Output is correct |
12 |
Correct |
75 ms |
33016 KB |
Output is correct |
13 |
Correct |
72 ms |
33272 KB |
Output is correct |
14 |
Correct |
25 ms |
2560 KB |
Output is correct |
15 |
Correct |
26 ms |
2560 KB |
Output is correct |
16 |
Correct |
7 ms |
1280 KB |
Output is correct |
17 |
Correct |
22 ms |
1792 KB |
Output is correct |
18 |
Correct |
7 ms |
1152 KB |
Output is correct |
19 |
Correct |
4 ms |
1152 KB |
Output is correct |
20 |
Correct |
74 ms |
33272 KB |
Output is correct |
21 |
Correct |
9 ms |
1152 KB |
Output is correct |
22 |
Correct |
5 ms |
1152 KB |
Output is correct |
23 |
Correct |
8 ms |
1148 KB |
Output is correct |
24 |
Correct |
19 ms |
1280 KB |
Output is correct |
25 |
Correct |
21 ms |
1280 KB |
Output is correct |
26 |
Correct |
69 ms |
30200 KB |
Output is correct |
27 |
Correct |
70 ms |
31068 KB |
Output is correct |
28 |
Correct |
20 ms |
1280 KB |
Output is correct |
29 |
Correct |
6 ms |
1408 KB |
Output is correct |
30 |
Correct |
3 ms |
1024 KB |
Output is correct |
31 |
Correct |
4 ms |
1280 KB |
Output is correct |
32 |
Correct |
4 ms |
1152 KB |
Output is correct |
33 |
Correct |
26 ms |
2552 KB |
Output is correct |
34 |
Correct |
26 ms |
2576 KB |
Output is correct |
35 |
Execution timed out |
1062 ms |
12860 KB |
Time limit exceeded |
36 |
Halted |
0 ms |
0 KB |
- |