#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pll pair<ll,ll>
#define fi first
#define se second
const int maxN=3e4+5;
const ll inf=2e18;
int n,m,b[maxN+1],p[maxN+1];
namespace sub4
{
const int LIMIT=2e3+5;
int d[LIMIT+1][LIMIT+1];
struct node
{
int u,power;
};
deque<node> q;
void solve()
{
for(int i=0;i<LIMIT;i++)
{
for(int j=0;j<LIMIT;j++)
{
d[i][j]=inf;
}
}
q.push_front({b[0],p[0]});
d[b[0]][p[0]]=0;
while(!q.empty())
{
node tmp=q.front();
q.pop_front();
int u=tmp.u,power=tmp.power;
//cout<<u<<" "<<power<<'\n';
if(u==b[1])
{
cout<<d[u][power];
return;
}
if(u+power<n)
{
if(d[u+power][power]>d[u][power]+1)
{
d[u+power][power]=d[u][power]+1;
q.push_back({u+power,power});
}
}
if(u-power>=0)
{
if(d[u-power][power]>d[u][power]+1)
{
d[u-power][power]=d[u][power]+1;
q.push_back({u-power,power});
}
}
for(int i=0;i<m;i++)
{
if(b[i]==u)
{
if(d[u][p[i]]>d[u][power])
{
d[u][p[i]]=d[u][power];
q.push_front({u,p[i]});
}
}
}
}
cout<<-1;
}
}
int main()
{
//freopen("","r",stdin);
//freopen("","w",stdout);
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin>>n>>m;
for(int i=0;i<m;i++)
{
cin>>b[i]>>p[i];
}
sub4::solve();
}
Compilation message
skyscraper.cpp: In function 'void sub4::solve()':
skyscraper.cpp:25:25: warning: overflow in conversion from 'long long int' to 'int' changes value from '2000000000000000000' to '1321730048' [-Woverflow]
25 | d[i][j]=inf;
| ^~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
15964 KB |
Output is correct |
2 |
Correct |
7 ms |
15964 KB |
Output is correct |
3 |
Correct |
7 ms |
16220 KB |
Output is correct |
4 |
Correct |
7 ms |
16188 KB |
Output is correct |
5 |
Correct |
6 ms |
16072 KB |
Output is correct |
6 |
Correct |
7 ms |
16220 KB |
Output is correct |
7 |
Correct |
6 ms |
16020 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
16220 KB |
Output is correct |
2 |
Correct |
12 ms |
15964 KB |
Output is correct |
3 |
Correct |
7 ms |
15964 KB |
Output is correct |
4 |
Correct |
8 ms |
15960 KB |
Output is correct |
5 |
Correct |
9 ms |
16084 KB |
Output is correct |
6 |
Correct |
7 ms |
16076 KB |
Output is correct |
7 |
Correct |
7 ms |
16220 KB |
Output is correct |
8 |
Correct |
6 ms |
15964 KB |
Output is correct |
9 |
Correct |
7 ms |
15964 KB |
Output is correct |
10 |
Correct |
7 ms |
16220 KB |
Output is correct |
11 |
Correct |
7 ms |
16220 KB |
Output is correct |
12 |
Correct |
8 ms |
16220 KB |
Output is correct |
13 |
Correct |
7 ms |
16248 KB |
Output is correct |
14 |
Correct |
15 ms |
16220 KB |
Output is correct |
15 |
Correct |
10 ms |
16256 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
15964 KB |
Output is correct |
2 |
Correct |
6 ms |
16152 KB |
Output is correct |
3 |
Correct |
7 ms |
16216 KB |
Output is correct |
4 |
Correct |
7 ms |
15964 KB |
Output is correct |
5 |
Correct |
7 ms |
15964 KB |
Output is correct |
6 |
Correct |
7 ms |
16084 KB |
Output is correct |
7 |
Correct |
6 ms |
15960 KB |
Output is correct |
8 |
Correct |
7 ms |
16220 KB |
Output is correct |
9 |
Correct |
8 ms |
15964 KB |
Output is correct |
10 |
Correct |
7 ms |
16220 KB |
Output is correct |
11 |
Correct |
7 ms |
16216 KB |
Output is correct |
12 |
Correct |
7 ms |
16220 KB |
Output is correct |
13 |
Correct |
6 ms |
16220 KB |
Output is correct |
14 |
Correct |
16 ms |
16248 KB |
Output is correct |
15 |
Correct |
10 ms |
16220 KB |
Output is correct |
16 |
Correct |
7 ms |
16220 KB |
Output is correct |
17 |
Correct |
11 ms |
16220 KB |
Output is correct |
18 |
Correct |
6 ms |
16176 KB |
Output is correct |
19 |
Correct |
7 ms |
16220 KB |
Output is correct |
20 |
Correct |
10 ms |
16220 KB |
Output is correct |
21 |
Correct |
7 ms |
16220 KB |
Output is correct |
22 |
Correct |
7 ms |
16032 KB |
Output is correct |
23 |
Correct |
10 ms |
16216 KB |
Output is correct |
24 |
Correct |
15 ms |
16220 KB |
Output is correct |
25 |
Correct |
8 ms |
16216 KB |
Output is correct |
26 |
Correct |
11 ms |
16248 KB |
Output is correct |
27 |
Correct |
13 ms |
16220 KB |
Output is correct |
28 |
Correct |
34 ms |
16104 KB |
Output is correct |
29 |
Correct |
41 ms |
16088 KB |
Output is correct |
30 |
Correct |
10 ms |
16220 KB |
Output is correct |
31 |
Correct |
20 ms |
15976 KB |
Output is correct |
32 |
Correct |
15 ms |
16220 KB |
Output is correct |
33 |
Correct |
170 ms |
16220 KB |
Output is correct |
34 |
Correct |
92 ms |
16216 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
15964 KB |
Output is correct |
2 |
Correct |
9 ms |
15980 KB |
Output is correct |
3 |
Correct |
7 ms |
15964 KB |
Output is correct |
4 |
Correct |
7 ms |
16156 KB |
Output is correct |
5 |
Correct |
7 ms |
16060 KB |
Output is correct |
6 |
Correct |
7 ms |
16080 KB |
Output is correct |
7 |
Correct |
7 ms |
15964 KB |
Output is correct |
8 |
Correct |
7 ms |
16220 KB |
Output is correct |
9 |
Correct |
7 ms |
16220 KB |
Output is correct |
10 |
Correct |
7 ms |
15960 KB |
Output is correct |
11 |
Correct |
7 ms |
16472 KB |
Output is correct |
12 |
Correct |
7 ms |
16220 KB |
Output is correct |
13 |
Correct |
7 ms |
16240 KB |
Output is correct |
14 |
Correct |
16 ms |
16220 KB |
Output is correct |
15 |
Correct |
10 ms |
16220 KB |
Output is correct |
16 |
Correct |
7 ms |
16220 KB |
Output is correct |
17 |
Correct |
16 ms |
16036 KB |
Output is correct |
18 |
Correct |
7 ms |
16220 KB |
Output is correct |
19 |
Correct |
7 ms |
16220 KB |
Output is correct |
20 |
Correct |
10 ms |
16220 KB |
Output is correct |
21 |
Correct |
7 ms |
16072 KB |
Output is correct |
22 |
Correct |
7 ms |
16116 KB |
Output is correct |
23 |
Correct |
10 ms |
16472 KB |
Output is correct |
24 |
Correct |
15 ms |
16216 KB |
Output is correct |
25 |
Correct |
8 ms |
16220 KB |
Output is correct |
26 |
Correct |
11 ms |
16092 KB |
Output is correct |
27 |
Correct |
13 ms |
16244 KB |
Output is correct |
28 |
Correct |
36 ms |
16220 KB |
Output is correct |
29 |
Correct |
38 ms |
15996 KB |
Output is correct |
30 |
Correct |
11 ms |
16216 KB |
Output is correct |
31 |
Correct |
27 ms |
16220 KB |
Output is correct |
32 |
Correct |
15 ms |
16220 KB |
Output is correct |
33 |
Correct |
168 ms |
16092 KB |
Output is correct |
34 |
Correct |
93 ms |
16220 KB |
Output is correct |
35 |
Correct |
603 ms |
16720 KB |
Output is correct |
36 |
Correct |
12 ms |
16220 KB |
Output is correct |
37 |
Correct |
207 ms |
16476 KB |
Output is correct |
38 |
Correct |
277 ms |
16700 KB |
Output is correct |
39 |
Correct |
15 ms |
16476 KB |
Output is correct |
40 |
Correct |
84 ms |
16684 KB |
Output is correct |
41 |
Correct |
141 ms |
16520 KB |
Output is correct |
42 |
Correct |
66 ms |
16476 KB |
Output is correct |
43 |
Correct |
99 ms |
16476 KB |
Output is correct |
44 |
Correct |
48 ms |
16476 KB |
Output is correct |
45 |
Execution timed out |
1042 ms |
16720 KB |
Time limit exceeded |
46 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
15964 KB |
Output is correct |
2 |
Correct |
7 ms |
16216 KB |
Output is correct |
3 |
Correct |
10 ms |
15964 KB |
Output is correct |
4 |
Correct |
7 ms |
16084 KB |
Output is correct |
5 |
Correct |
7 ms |
15964 KB |
Output is correct |
6 |
Correct |
7 ms |
16008 KB |
Output is correct |
7 |
Correct |
7 ms |
15960 KB |
Output is correct |
8 |
Correct |
7 ms |
15988 KB |
Output is correct |
9 |
Correct |
7 ms |
16084 KB |
Output is correct |
10 |
Correct |
7 ms |
16216 KB |
Output is correct |
11 |
Correct |
7 ms |
16220 KB |
Output is correct |
12 |
Correct |
7 ms |
15988 KB |
Output is correct |
13 |
Correct |
7 ms |
16220 KB |
Output is correct |
14 |
Correct |
16 ms |
16260 KB |
Output is correct |
15 |
Correct |
11 ms |
16220 KB |
Output is correct |
16 |
Correct |
7 ms |
16220 KB |
Output is correct |
17 |
Correct |
11 ms |
16256 KB |
Output is correct |
18 |
Correct |
7 ms |
16220 KB |
Output is correct |
19 |
Correct |
7 ms |
16220 KB |
Output is correct |
20 |
Correct |
11 ms |
16220 KB |
Output is correct |
21 |
Correct |
6 ms |
16220 KB |
Output is correct |
22 |
Correct |
7 ms |
16116 KB |
Output is correct |
23 |
Correct |
14 ms |
16220 KB |
Output is correct |
24 |
Correct |
15 ms |
16216 KB |
Output is correct |
25 |
Correct |
8 ms |
16120 KB |
Output is correct |
26 |
Correct |
12 ms |
16252 KB |
Output is correct |
27 |
Correct |
13 ms |
16220 KB |
Output is correct |
28 |
Correct |
34 ms |
16216 KB |
Output is correct |
29 |
Correct |
39 ms |
16220 KB |
Output is correct |
30 |
Correct |
10 ms |
16220 KB |
Output is correct |
31 |
Correct |
21 ms |
16220 KB |
Output is correct |
32 |
Correct |
16 ms |
16216 KB |
Output is correct |
33 |
Correct |
183 ms |
16216 KB |
Output is correct |
34 |
Correct |
91 ms |
16240 KB |
Output is correct |
35 |
Correct |
606 ms |
16980 KB |
Output is correct |
36 |
Correct |
12 ms |
16216 KB |
Output is correct |
37 |
Correct |
208 ms |
16476 KB |
Output is correct |
38 |
Correct |
288 ms |
16720 KB |
Output is correct |
39 |
Correct |
19 ms |
16464 KB |
Output is correct |
40 |
Correct |
82 ms |
16708 KB |
Output is correct |
41 |
Correct |
131 ms |
16720 KB |
Output is correct |
42 |
Correct |
66 ms |
16624 KB |
Output is correct |
43 |
Correct |
93 ms |
16628 KB |
Output is correct |
44 |
Correct |
49 ms |
16476 KB |
Output is correct |
45 |
Execution timed out |
1035 ms |
16728 KB |
Time limit exceeded |
46 |
Halted |
0 ms |
0 KB |
- |