#include <cmath>
#include <functional>
#include <fstream>
#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <set>
#include <map>
#include <list>
#include <time.h>
#include <math.h>
#include <random>
#include <deque>
#include <queue>
#include <unordered_map>
#include <unordered_set>
#include <iomanip>
#include <cassert>
#include <bitset>
#include <sstream>
#include <chrono>
#include <cstring>
#include <numeric>
using namespace std;
const int INF = (int)1e9 + 7;
struct T
{
int pos;
int delta;
};
signed main()
{
#ifdef ONPC
FILE* stream;
freopen_s(&stream, "input.txt", "r", stdin);
#else
ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#endif
int dim, cntofs;
cin >> dim >> cntofs;
vector<T> ofs(cntofs);
for (auto& of : ofs)
{
cin >> of.pos >> of.delta;
assert(0 <= of.pos && of.pos < dim);
}
vector<int> dp(cntofs, INF);
priority_queue<pair<int, int>> pq;
auto relax = [&](int i, int val)
{
if (val < dp[i])
{
dp[i] = val;
pq.push({ -dp[i], i });
}
};
relax(0, 0);
while (!pq.empty())
{
auto it = pq.top();
pq.pop();
int i = it.second;
if (-it.first != dp[i])
{
continue;
}
for (int j = 0; j < cntofs; j++)
{
int posdif = abs(ofs[i].pos - ofs[j].pos);
if (posdif % ofs[i].delta==0)
{
relax(j, dp[i] + posdif / ofs[i].delta);
}
}
}
int sol = (dp[1] == INF) ? (-1) : (dp[1]);
cout << sol << "\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
320 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
324 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
316 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
2 ms |
316 KB |
Output is correct |
11 |
Correct |
21 ms |
340 KB |
Output is correct |
12 |
Correct |
21 ms |
380 KB |
Output is correct |
13 |
Correct |
19 ms |
392 KB |
Output is correct |
14 |
Correct |
21 ms |
340 KB |
Output is correct |
15 |
Correct |
21 ms |
456 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
320 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
316 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
21 ms |
340 KB |
Output is correct |
12 |
Correct |
19 ms |
324 KB |
Output is correct |
13 |
Correct |
20 ms |
392 KB |
Output is correct |
14 |
Correct |
22 ms |
460 KB |
Output is correct |
15 |
Correct |
21 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
17 ms |
416 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
25 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
324 KB |
Output is correct |
23 |
Correct |
5 ms |
328 KB |
Output is correct |
24 |
Correct |
20 ms |
380 KB |
Output is correct |
25 |
Correct |
21 ms |
340 KB |
Output is correct |
26 |
Correct |
20 ms |
340 KB |
Output is correct |
27 |
Correct |
20 ms |
332 KB |
Output is correct |
28 |
Correct |
21 ms |
340 KB |
Output is correct |
29 |
Correct |
4 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
2 ms |
340 KB |
Output is correct |
32 |
Correct |
2 ms |
340 KB |
Output is correct |
33 |
Correct |
21 ms |
340 KB |
Output is correct |
34 |
Correct |
21 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
324 KB |
Output is correct |
11 |
Correct |
22 ms |
340 KB |
Output is correct |
12 |
Correct |
19 ms |
384 KB |
Output is correct |
13 |
Correct |
20 ms |
340 KB |
Output is correct |
14 |
Correct |
21 ms |
340 KB |
Output is correct |
15 |
Correct |
21 ms |
460 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
17 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
24 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
7 ms |
340 KB |
Output is correct |
24 |
Correct |
20 ms |
340 KB |
Output is correct |
25 |
Correct |
20 ms |
340 KB |
Output is correct |
26 |
Correct |
20 ms |
392 KB |
Output is correct |
27 |
Correct |
20 ms |
396 KB |
Output is correct |
28 |
Correct |
20 ms |
340 KB |
Output is correct |
29 |
Correct |
4 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
2 ms |
344 KB |
Output is correct |
32 |
Correct |
2 ms |
324 KB |
Output is correct |
33 |
Correct |
21 ms |
340 KB |
Output is correct |
34 |
Correct |
21 ms |
460 KB |
Output is correct |
35 |
Execution timed out |
1078 ms |
1580 KB |
Time limit exceeded |
36 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
320 KB |
Output is correct |
6 |
Correct |
0 ms |
320 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
320 KB |
Output is correct |
9 |
Correct |
1 ms |
316 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
21 ms |
340 KB |
Output is correct |
12 |
Correct |
19 ms |
340 KB |
Output is correct |
13 |
Correct |
22 ms |
328 KB |
Output is correct |
14 |
Correct |
22 ms |
440 KB |
Output is correct |
15 |
Correct |
22 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
328 KB |
Output is correct |
17 |
Correct |
16 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
324 KB |
Output is correct |
20 |
Correct |
25 ms |
392 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
320 KB |
Output is correct |
23 |
Correct |
6 ms |
356 KB |
Output is correct |
24 |
Correct |
18 ms |
340 KB |
Output is correct |
25 |
Correct |
20 ms |
332 KB |
Output is correct |
26 |
Correct |
20 ms |
340 KB |
Output is correct |
27 |
Correct |
23 ms |
340 KB |
Output is correct |
28 |
Correct |
25 ms |
340 KB |
Output is correct |
29 |
Correct |
4 ms |
324 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
2 ms |
312 KB |
Output is correct |
32 |
Correct |
2 ms |
340 KB |
Output is correct |
33 |
Correct |
22 ms |
340 KB |
Output is correct |
34 |
Correct |
21 ms |
452 KB |
Output is correct |
35 |
Execution timed out |
1072 ms |
1588 KB |
Time limit exceeded |
36 |
Halted |
0 ms |
0 KB |
- |