#define wiwihorz
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma loop-opt(on)
#define rep(i, a, b) for(int i = a; i <= b; i ++)
#define rrep(i, a, b) for(int i = b; i >= a; i --)
#define all(x) x.begin(), x.end()
#define ceil(a, b) ((a + b - 1) / (b))
#define INF 1000000000
#define MOD 1000000007
#define eps (1e-9)
using namespace std;
#define lld long double
#define pii pair<int, int>
#define random mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count())
#ifdef wiwihorz
#define print(a...) cerr << "Line " << __LINE__ << ": ", kout("[" + string(#a) + "] = ", a)
void vprint(auto L, auto R) {while(L < R) cerr << *L << " \n"[next(L) == R], ++L;}
void kout() { cerr << endl; }
template<class T1, class ... T2> void kout(T1 a, T2 ... e) { cerr << a << " ", kout(e...); }
#else
#define print(...) 0
#define vprint(...) 0
#endif
namespace solver {
const int P = 7000000;
const int K = 220;
int n, m, st, ed, ii;
vector<int> dis, s;
vector<vector<pii>> mp;
vector<vector<vector<int>>> a;
void init_(int _n, int _m) {
n = _n, m = _m, ii = n - 1;
s.clear();
dis.assign(P, INF);
mp.assign(P, vector<pii>());
a.assign(K, vector<vector<int>>(K, vector<int>()));
}
void get_new() {
ii++;
if(ii >= P) while(1);
}
void add_node(int pos, int b) {
for(int i = pos % b; i < n; i += b) {
get_new();
if(i == pos) mp[i].push_back({ii, 0});
if(i != pos % b) {
mp[ii].push_back({ii - 1, 1});
mp[ii - 1].push_back({ii, 1});
}
mp[ii].push_back({i, 0});
}
}
int solve() {
rep(i, 1, K - 1) rep(j, 0, i - 1) {
if(!a[i][j].size()) continue;
sort(all(a[i][j]));
vector<int> v = a[i][j];
int id = -1;
for(int k = j; k < n; k += i) {
get_new();
while(id + 1 < v.size() && v[id + 1] <= k) id ++;
if(id >= 0 && v[id] == k) mp[k].push_back({ii, 0});
if(k != j) {
mp[ii].push_back({ii - 1, 1});
mp[ii - 1].push_back({ii, 1});
}
mp[ii].push_back({k, 0});
}
}
dis[st] = 0;
deque<int> q;
q.push_back(st);
while(q.size()) {
int cur = q.front();
q.pop_front();
for(auto i : mp[cur]) if(dis[i.first] == INF) {
dis[i.first] = i.second + dis[cur];
if(i.second) q.push_back(i.first);
else q.push_front(i.first);
}
}
return (dis[ed] == INF ? -1 : dis[ed]);
}
};
using namespace solver;
signed main() {
ios::sync_with_stdio(false), cin.tie(0);
int n, m, b, p;
cin >> n >> m;
init_(n, m);
rep(i, 0, m - 1) {
cin >> b >> p;
if(i == 0) st = b;
if(i == 1) ed = b;
if(p >= K) add_node(b, p);
else a[p][b % p].push_back(b);
}
cout << solve() << "\n";
return 0;
}
Compilation message
skyscraper.cpp:4: warning: ignoring '#pragma loop ' [-Wunknown-pragmas]
4 | #pragma loop-opt(on)
|
skyscraper.cpp:23:13: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
23 | void vprint(auto L, auto R) {while(L < R) cerr << *L << " \n"[next(L) == R], ++L;}
| ^~~~
skyscraper.cpp:23:21: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
23 | void vprint(auto L, auto R) {while(L < R) cerr << *L << " \n"[next(L) == R], ++L;}
| ^~~~
skyscraper.cpp: In function 'int solver::solve()':
skyscraper.cpp:67:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
67 | while(id + 1 < v.size() && v[id + 1] <= k) id ++;
| ~~~~~~~^~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
119 ms |
193220 KB |
Output is correct |
2 |
Correct |
113 ms |
193136 KB |
Output is correct |
3 |
Correct |
101 ms |
193124 KB |
Output is correct |
4 |
Correct |
103 ms |
193220 KB |
Output is correct |
5 |
Correct |
105 ms |
193116 KB |
Output is correct |
6 |
Correct |
118 ms |
193196 KB |
Output is correct |
7 |
Correct |
104 ms |
193184 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
100 ms |
193220 KB |
Output is correct |
2 |
Correct |
102 ms |
193156 KB |
Output is correct |
3 |
Correct |
105 ms |
193112 KB |
Output is correct |
4 |
Correct |
121 ms |
193116 KB |
Output is correct |
5 |
Correct |
108 ms |
193120 KB |
Output is correct |
6 |
Correct |
101 ms |
193224 KB |
Output is correct |
7 |
Correct |
108 ms |
193216 KB |
Output is correct |
8 |
Correct |
105 ms |
193220 KB |
Output is correct |
9 |
Correct |
102 ms |
193220 KB |
Output is correct |
10 |
Correct |
104 ms |
193220 KB |
Output is correct |
11 |
Correct |
106 ms |
193476 KB |
Output is correct |
12 |
Correct |
103 ms |
193140 KB |
Output is correct |
13 |
Correct |
103 ms |
193168 KB |
Output is correct |
14 |
Correct |
104 ms |
193476 KB |
Output is correct |
15 |
Correct |
106 ms |
193520 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
103 ms |
193140 KB |
Output is correct |
2 |
Correct |
103 ms |
193188 KB |
Output is correct |
3 |
Correct |
108 ms |
193220 KB |
Output is correct |
4 |
Correct |
104 ms |
193176 KB |
Output is correct |
5 |
Correct |
102 ms |
193212 KB |
Output is correct |
6 |
Correct |
112 ms |
193324 KB |
Output is correct |
7 |
Correct |
105 ms |
193184 KB |
Output is correct |
8 |
Correct |
110 ms |
193220 KB |
Output is correct |
9 |
Correct |
102 ms |
193220 KB |
Output is correct |
10 |
Correct |
104 ms |
193436 KB |
Output is correct |
11 |
Correct |
103 ms |
193452 KB |
Output is correct |
12 |
Correct |
111 ms |
193220 KB |
Output is correct |
13 |
Correct |
107 ms |
193172 KB |
Output is correct |
14 |
Correct |
106 ms |
193476 KB |
Output is correct |
15 |
Correct |
113 ms |
193616 KB |
Output is correct |
16 |
Correct |
111 ms |
193352 KB |
Output is correct |
17 |
Correct |
104 ms |
193872 KB |
Output is correct |
18 |
Correct |
106 ms |
193476 KB |
Output is correct |
19 |
Correct |
103 ms |
193388 KB |
Output is correct |
20 |
Correct |
103 ms |
193404 KB |
Output is correct |
21 |
Correct |
103 ms |
193348 KB |
Output is correct |
22 |
Correct |
103 ms |
193400 KB |
Output is correct |
23 |
Correct |
103 ms |
193412 KB |
Output is correct |
24 |
Correct |
105 ms |
193728 KB |
Output is correct |
25 |
Correct |
104 ms |
193576 KB |
Output is correct |
26 |
Correct |
103 ms |
193484 KB |
Output is correct |
27 |
Correct |
105 ms |
193476 KB |
Output is correct |
28 |
Correct |
105 ms |
194276 KB |
Output is correct |
29 |
Correct |
114 ms |
196072 KB |
Output is correct |
30 |
Correct |
110 ms |
194108 KB |
Output is correct |
31 |
Correct |
108 ms |
194800 KB |
Output is correct |
32 |
Correct |
108 ms |
194292 KB |
Output is correct |
33 |
Correct |
123 ms |
198788 KB |
Output is correct |
34 |
Correct |
123 ms |
198848 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
106 ms |
193244 KB |
Output is correct |
2 |
Correct |
105 ms |
193220 KB |
Output is correct |
3 |
Correct |
101 ms |
193184 KB |
Output is correct |
4 |
Correct |
102 ms |
193116 KB |
Output is correct |
5 |
Correct |
106 ms |
193180 KB |
Output is correct |
6 |
Correct |
104 ms |
193156 KB |
Output is correct |
7 |
Correct |
106 ms |
193200 KB |
Output is correct |
8 |
Correct |
120 ms |
193128 KB |
Output is correct |
9 |
Correct |
104 ms |
193148 KB |
Output is correct |
10 |
Correct |
104 ms |
193224 KB |
Output is correct |
11 |
Correct |
104 ms |
193476 KB |
Output is correct |
12 |
Correct |
103 ms |
193172 KB |
Output is correct |
13 |
Correct |
104 ms |
193152 KB |
Output is correct |
14 |
Correct |
106 ms |
193472 KB |
Output is correct |
15 |
Correct |
105 ms |
193476 KB |
Output is correct |
16 |
Correct |
106 ms |
193424 KB |
Output is correct |
17 |
Correct |
122 ms |
193864 KB |
Output is correct |
18 |
Correct |
103 ms |
193468 KB |
Output is correct |
19 |
Correct |
104 ms |
193436 KB |
Output is correct |
20 |
Correct |
107 ms |
193472 KB |
Output is correct |
21 |
Correct |
114 ms |
193256 KB |
Output is correct |
22 |
Correct |
101 ms |
193464 KB |
Output is correct |
23 |
Correct |
103 ms |
193476 KB |
Output is correct |
24 |
Correct |
104 ms |
193716 KB |
Output is correct |
25 |
Correct |
112 ms |
193604 KB |
Output is correct |
26 |
Correct |
103 ms |
193544 KB |
Output is correct |
27 |
Correct |
106 ms |
193524 KB |
Output is correct |
28 |
Correct |
116 ms |
194280 KB |
Output is correct |
29 |
Correct |
113 ms |
196036 KB |
Output is correct |
30 |
Correct |
106 ms |
194020 KB |
Output is correct |
31 |
Correct |
110 ms |
194756 KB |
Output is correct |
32 |
Correct |
140 ms |
194348 KB |
Output is correct |
33 |
Correct |
129 ms |
198812 KB |
Output is correct |
34 |
Correct |
127 ms |
198852 KB |
Output is correct |
35 |
Correct |
135 ms |
197884 KB |
Output is correct |
36 |
Correct |
108 ms |
193988 KB |
Output is correct |
37 |
Correct |
148 ms |
201156 KB |
Output is correct |
38 |
Correct |
147 ms |
200516 KB |
Output is correct |
39 |
Correct |
148 ms |
200520 KB |
Output is correct |
40 |
Correct |
146 ms |
200576 KB |
Output is correct |
41 |
Correct |
146 ms |
200512 KB |
Output is correct |
42 |
Correct |
114 ms |
193752 KB |
Output is correct |
43 |
Correct |
114 ms |
193600 KB |
Output is correct |
44 |
Correct |
109 ms |
193604 KB |
Output is correct |
45 |
Correct |
250 ms |
216084 KB |
Output is correct |
46 |
Correct |
250 ms |
216004 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
105 ms |
193196 KB |
Output is correct |
2 |
Correct |
105 ms |
193200 KB |
Output is correct |
3 |
Correct |
105 ms |
193220 KB |
Output is correct |
4 |
Correct |
105 ms |
193248 KB |
Output is correct |
5 |
Correct |
104 ms |
193156 KB |
Output is correct |
6 |
Correct |
107 ms |
193180 KB |
Output is correct |
7 |
Correct |
109 ms |
193188 KB |
Output is correct |
8 |
Correct |
102 ms |
193220 KB |
Output is correct |
9 |
Correct |
107 ms |
193208 KB |
Output is correct |
10 |
Correct |
104 ms |
193268 KB |
Output is correct |
11 |
Correct |
105 ms |
193476 KB |
Output is correct |
12 |
Correct |
105 ms |
193136 KB |
Output is correct |
13 |
Correct |
103 ms |
193192 KB |
Output is correct |
14 |
Correct |
110 ms |
193600 KB |
Output is correct |
15 |
Correct |
106 ms |
193500 KB |
Output is correct |
16 |
Correct |
104 ms |
193348 KB |
Output is correct |
17 |
Correct |
108 ms |
193924 KB |
Output is correct |
18 |
Correct |
109 ms |
193656 KB |
Output is correct |
19 |
Correct |
103 ms |
193424 KB |
Output is correct |
20 |
Correct |
104 ms |
193348 KB |
Output is correct |
21 |
Correct |
105 ms |
193272 KB |
Output is correct |
22 |
Correct |
104 ms |
193460 KB |
Output is correct |
23 |
Correct |
109 ms |
193480 KB |
Output is correct |
24 |
Correct |
112 ms |
193740 KB |
Output is correct |
25 |
Correct |
118 ms |
193572 KB |
Output is correct |
26 |
Correct |
104 ms |
193604 KB |
Output is correct |
27 |
Correct |
105 ms |
193464 KB |
Output is correct |
28 |
Correct |
106 ms |
194360 KB |
Output is correct |
29 |
Correct |
114 ms |
196164 KB |
Output is correct |
30 |
Correct |
108 ms |
193972 KB |
Output is correct |
31 |
Correct |
107 ms |
194680 KB |
Output is correct |
32 |
Correct |
107 ms |
194344 KB |
Output is correct |
33 |
Correct |
145 ms |
198876 KB |
Output is correct |
34 |
Correct |
123 ms |
198844 KB |
Output is correct |
35 |
Correct |
128 ms |
197828 KB |
Output is correct |
36 |
Correct |
107 ms |
194048 KB |
Output is correct |
37 |
Correct |
161 ms |
201148 KB |
Output is correct |
38 |
Correct |
156 ms |
200492 KB |
Output is correct |
39 |
Correct |
148 ms |
200588 KB |
Output is correct |
40 |
Correct |
148 ms |
200596 KB |
Output is correct |
41 |
Correct |
144 ms |
200536 KB |
Output is correct |
42 |
Correct |
113 ms |
193616 KB |
Output is correct |
43 |
Correct |
111 ms |
193560 KB |
Output is correct |
44 |
Correct |
110 ms |
193500 KB |
Output is correct |
45 |
Correct |
246 ms |
216024 KB |
Output is correct |
46 |
Correct |
253 ms |
215964 KB |
Output is correct |
47 |
Correct |
319 ms |
227788 KB |
Output is correct |
48 |
Correct |
140 ms |
204108 KB |
Output is correct |
49 |
Correct |
134 ms |
199860 KB |
Output is correct |
50 |
Correct |
126 ms |
199880 KB |
Output is correct |
51 |
Correct |
191 ms |
207964 KB |
Output is correct |
52 |
Correct |
193 ms |
209260 KB |
Output is correct |
53 |
Correct |
129 ms |
197444 KB |
Output is correct |
54 |
Correct |
107 ms |
194596 KB |
Output is correct |
55 |
Correct |
113 ms |
195716 KB |
Output is correct |
56 |
Correct |
118 ms |
195784 KB |
Output is correct |
57 |
Correct |
195 ms |
213584 KB |
Output is correct |
58 |
Correct |
117 ms |
196376 KB |
Output is correct |
59 |
Correct |
123 ms |
197788 KB |
Output is correct |
60 |
Correct |
135 ms |
199692 KB |
Output is correct |
61 |
Correct |
125 ms |
198444 KB |
Output is correct |
62 |
Correct |
193 ms |
216552 KB |
Output is correct |
63 |
Runtime error |
257 ms |
262148 KB |
Execution killed with signal 9 |
64 |
Halted |
0 ms |
0 KB |
- |