#include <bits/stdc++.h>
#define fr first
#define sc second
#define OK puts("OK");
#define pb push_back
#define mk make_pair
#define int long long
using namespace std;
typedef long long ll;
const int inf = (int)1e15 + 7;
const int N = (int)2e5 + 7;
int n,m;
int b[N],p[N];
int d[N];
vector <int> vec[N];
vector <pair<int,int> > g[N];
priority_queue<pair<int,int> > q;
bool check (int l,int r,int x) {
if (abs(r - l) % x == 0)
return true;
return false;
}
int f (int l,int r,int x) {
return (abs(r - l) / x);
}
main () {
cin >> n >> m;
for (int i = 1; i <= m; i ++) {
cin >> b[i] >> p[i];
b[i] ++;
vec[b[i]].pb(p[i]);
}
for (int i = 1; i <= n; i ++) {
sort (vec[i].begin(),vec[i].end());
vec[i].erase(unique(vec[i].begin(),vec[i].end()),vec[i].end());
}
for (int i = 1; i <= n; i ++)
d[i] = inf;
d[b[1]] = 0;
q.push({0,b[1]});
while (!q.empty()) {
int v = q.top().sc,cur = -q.top().fr;
q.pop();
if (cur > d[v])
continue;
if (b[2] == v) {
cout << d[v] << endl;
return 0;
}
for (auto to : vec[v]) {
for (int i = 1; to * i + v <= n; i ++) {
if (d[v] + i < d[to * i + v]) {
d[to * i + v] = d[v] + i;
q.push({-d[to * i + v],to * i + v});
}
}
for (int i = 1; to * i <= v; i ++) {
if (d[v] + i < d[v - to * i]) {
d[v - to * i] = d[v] + i;
q.push({-d[v - to * i],v - to * i});
}
}
}
}
if (d[b[2]] == inf)
puts("-1");
else
cout << d[b[2]] << endl;
}
Compilation message
skyscraper.cpp:33:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
main () {
^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
12 ms |
9684 KB |
Output is correct |
2 |
Correct |
10 ms |
9836 KB |
Output is correct |
3 |
Correct |
12 ms |
9836 KB |
Output is correct |
4 |
Correct |
12 ms |
9844 KB |
Output is correct |
5 |
Correct |
12 ms |
9976 KB |
Output is correct |
6 |
Correct |
12 ms |
9976 KB |
Output is correct |
7 |
Correct |
12 ms |
9976 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9976 KB |
Output is correct |
2 |
Correct |
10 ms |
10068 KB |
Output is correct |
3 |
Correct |
10 ms |
10068 KB |
Output is correct |
4 |
Correct |
11 ms |
10068 KB |
Output is correct |
5 |
Correct |
11 ms |
10068 KB |
Output is correct |
6 |
Correct |
11 ms |
10068 KB |
Output is correct |
7 |
Correct |
11 ms |
10068 KB |
Output is correct |
8 |
Correct |
11 ms |
10068 KB |
Output is correct |
9 |
Correct |
13 ms |
10068 KB |
Output is correct |
10 |
Correct |
13 ms |
10068 KB |
Output is correct |
11 |
Correct |
12 ms |
10140 KB |
Output is correct |
12 |
Correct |
11 ms |
10272 KB |
Output is correct |
13 |
Correct |
13 ms |
10316 KB |
Output is correct |
14 |
Correct |
13 ms |
10328 KB |
Output is correct |
15 |
Correct |
12 ms |
10328 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
12 ms |
10328 KB |
Output is correct |
2 |
Correct |
11 ms |
10328 KB |
Output is correct |
3 |
Correct |
11 ms |
10328 KB |
Output is correct |
4 |
Correct |
13 ms |
10328 KB |
Output is correct |
5 |
Correct |
12 ms |
10328 KB |
Output is correct |
6 |
Correct |
12 ms |
10328 KB |
Output is correct |
7 |
Correct |
11 ms |
10328 KB |
Output is correct |
8 |
Correct |
13 ms |
10328 KB |
Output is correct |
9 |
Correct |
12 ms |
10328 KB |
Output is correct |
10 |
Correct |
12 ms |
10328 KB |
Output is correct |
11 |
Correct |
12 ms |
10328 KB |
Output is correct |
12 |
Correct |
12 ms |
10328 KB |
Output is correct |
13 |
Correct |
14 ms |
10328 KB |
Output is correct |
14 |
Correct |
12 ms |
10328 KB |
Output is correct |
15 |
Correct |
12 ms |
10328 KB |
Output is correct |
16 |
Correct |
14 ms |
10328 KB |
Output is correct |
17 |
Correct |
12 ms |
10328 KB |
Output is correct |
18 |
Correct |
14 ms |
10328 KB |
Output is correct |
19 |
Correct |
11 ms |
10328 KB |
Output is correct |
20 |
Correct |
16 ms |
10328 KB |
Output is correct |
21 |
Correct |
12 ms |
10328 KB |
Output is correct |
22 |
Correct |
12 ms |
10328 KB |
Output is correct |
23 |
Correct |
12 ms |
10352 KB |
Output is correct |
24 |
Correct |
13 ms |
10352 KB |
Output is correct |
25 |
Correct |
16 ms |
10372 KB |
Output is correct |
26 |
Correct |
12 ms |
10392 KB |
Output is correct |
27 |
Correct |
15 ms |
10488 KB |
Output is correct |
28 |
Correct |
14 ms |
10488 KB |
Output is correct |
29 |
Correct |
16 ms |
10700 KB |
Output is correct |
30 |
Correct |
15 ms |
10700 KB |
Output is correct |
31 |
Correct |
14 ms |
10700 KB |
Output is correct |
32 |
Correct |
12 ms |
10700 KB |
Output is correct |
33 |
Correct |
14 ms |
10796 KB |
Output is correct |
34 |
Correct |
14 ms |
10860 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
13 ms |
10860 KB |
Output is correct |
2 |
Correct |
12 ms |
10860 KB |
Output is correct |
3 |
Correct |
13 ms |
10860 KB |
Output is correct |
4 |
Correct |
13 ms |
10860 KB |
Output is correct |
5 |
Correct |
13 ms |
10860 KB |
Output is correct |
6 |
Correct |
13 ms |
10860 KB |
Output is correct |
7 |
Correct |
13 ms |
10860 KB |
Output is correct |
8 |
Correct |
12 ms |
10860 KB |
Output is correct |
9 |
Correct |
13 ms |
10860 KB |
Output is correct |
10 |
Correct |
12 ms |
10860 KB |
Output is correct |
11 |
Correct |
14 ms |
10860 KB |
Output is correct |
12 |
Correct |
14 ms |
10860 KB |
Output is correct |
13 |
Correct |
12 ms |
10860 KB |
Output is correct |
14 |
Correct |
15 ms |
10860 KB |
Output is correct |
15 |
Correct |
11 ms |
10860 KB |
Output is correct |
16 |
Correct |
10 ms |
10860 KB |
Output is correct |
17 |
Correct |
13 ms |
10860 KB |
Output is correct |
18 |
Correct |
13 ms |
10860 KB |
Output is correct |
19 |
Correct |
13 ms |
10860 KB |
Output is correct |
20 |
Correct |
17 ms |
10860 KB |
Output is correct |
21 |
Correct |
13 ms |
10860 KB |
Output is correct |
22 |
Correct |
14 ms |
10860 KB |
Output is correct |
23 |
Correct |
15 ms |
10860 KB |
Output is correct |
24 |
Correct |
16 ms |
10860 KB |
Output is correct |
25 |
Correct |
16 ms |
10860 KB |
Output is correct |
26 |
Correct |
16 ms |
10860 KB |
Output is correct |
27 |
Correct |
15 ms |
10860 KB |
Output is correct |
28 |
Correct |
12 ms |
10860 KB |
Output is correct |
29 |
Correct |
13 ms |
10904 KB |
Output is correct |
30 |
Correct |
14 ms |
10904 KB |
Output is correct |
31 |
Correct |
15 ms |
10904 KB |
Output is correct |
32 |
Correct |
14 ms |
10904 KB |
Output is correct |
33 |
Correct |
15 ms |
11052 KB |
Output is correct |
34 |
Correct |
16 ms |
11056 KB |
Output is correct |
35 |
Correct |
46 ms |
11440 KB |
Output is correct |
36 |
Correct |
19 ms |
11440 KB |
Output is correct |
37 |
Correct |
38 ms |
11440 KB |
Output is correct |
38 |
Correct |
34 ms |
11684 KB |
Output is correct |
39 |
Correct |
32 ms |
11684 KB |
Output is correct |
40 |
Correct |
30 ms |
11696 KB |
Output is correct |
41 |
Correct |
49 ms |
11696 KB |
Output is correct |
42 |
Correct |
26 ms |
11696 KB |
Output is correct |
43 |
Correct |
28 ms |
11696 KB |
Output is correct |
44 |
Correct |
41 ms |
11696 KB |
Output is correct |
45 |
Correct |
38 ms |
11720 KB |
Output is correct |
46 |
Correct |
39 ms |
11720 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
11720 KB |
Output is correct |
2 |
Correct |
10 ms |
11720 KB |
Output is correct |
3 |
Correct |
11 ms |
11720 KB |
Output is correct |
4 |
Correct |
11 ms |
11720 KB |
Output is correct |
5 |
Correct |
11 ms |
11720 KB |
Output is correct |
6 |
Correct |
12 ms |
11720 KB |
Output is correct |
7 |
Correct |
11 ms |
11720 KB |
Output is correct |
8 |
Correct |
13 ms |
11720 KB |
Output is correct |
9 |
Correct |
10 ms |
11720 KB |
Output is correct |
10 |
Correct |
10 ms |
11720 KB |
Output is correct |
11 |
Correct |
11 ms |
11720 KB |
Output is correct |
12 |
Correct |
13 ms |
11720 KB |
Output is correct |
13 |
Correct |
12 ms |
11720 KB |
Output is correct |
14 |
Correct |
11 ms |
11720 KB |
Output is correct |
15 |
Correct |
13 ms |
11720 KB |
Output is correct |
16 |
Correct |
14 ms |
11720 KB |
Output is correct |
17 |
Correct |
12 ms |
11720 KB |
Output is correct |
18 |
Correct |
14 ms |
11720 KB |
Output is correct |
19 |
Correct |
11 ms |
11720 KB |
Output is correct |
20 |
Correct |
17 ms |
11720 KB |
Output is correct |
21 |
Correct |
12 ms |
11720 KB |
Output is correct |
22 |
Correct |
11 ms |
11720 KB |
Output is correct |
23 |
Correct |
12 ms |
11720 KB |
Output is correct |
24 |
Correct |
12 ms |
11720 KB |
Output is correct |
25 |
Correct |
13 ms |
11720 KB |
Output is correct |
26 |
Correct |
15 ms |
11720 KB |
Output is correct |
27 |
Correct |
13 ms |
11720 KB |
Output is correct |
28 |
Correct |
12 ms |
11720 KB |
Output is correct |
29 |
Correct |
13 ms |
11720 KB |
Output is correct |
30 |
Correct |
12 ms |
11720 KB |
Output is correct |
31 |
Correct |
14 ms |
11720 KB |
Output is correct |
32 |
Correct |
14 ms |
11720 KB |
Output is correct |
33 |
Correct |
14 ms |
11720 KB |
Output is correct |
34 |
Correct |
12 ms |
11720 KB |
Output is correct |
35 |
Correct |
37 ms |
11720 KB |
Output is correct |
36 |
Correct |
17 ms |
11720 KB |
Output is correct |
37 |
Correct |
23 ms |
11720 KB |
Output is correct |
38 |
Correct |
49 ms |
11844 KB |
Output is correct |
39 |
Correct |
43 ms |
11844 KB |
Output is correct |
40 |
Correct |
30 ms |
11844 KB |
Output is correct |
41 |
Correct |
34 ms |
11844 KB |
Output is correct |
42 |
Correct |
27 ms |
11844 KB |
Output is correct |
43 |
Correct |
27 ms |
11844 KB |
Output is correct |
44 |
Correct |
42 ms |
11844 KB |
Output is correct |
45 |
Correct |
36 ms |
11972 KB |
Output is correct |
46 |
Correct |
30 ms |
11972 KB |
Output is correct |
47 |
Correct |
34 ms |
12728 KB |
Output is correct |
48 |
Correct |
42 ms |
12728 KB |
Output is correct |
49 |
Correct |
33 ms |
12728 KB |
Output is correct |
50 |
Correct |
23 ms |
12728 KB |
Output is correct |
51 |
Correct |
56 ms |
14900 KB |
Output is correct |
52 |
Correct |
61 ms |
14900 KB |
Output is correct |
53 |
Correct |
39 ms |
14900 KB |
Output is correct |
54 |
Correct |
13 ms |
14900 KB |
Output is correct |
55 |
Correct |
17 ms |
14900 KB |
Output is correct |
56 |
Execution timed out |
1047 ms |
14900 KB |
Time limit exceeded |
57 |
Halted |
0 ms |
0 KB |
- |