#include <bits/stdc++.h>
using namespace std;
const int N = 10;
const int inf = 1e5 + 9;
int n, m, target, b[N], p[N], dp[N][N][2][1 << N];
vector<int> g[N];
int sol(int i, int j, int dir, int vis) {
if (i == target) {
return 0;
}
int& ret = dp[i][j][dir][vis];
if (ret != -1) {
return ret;
}
ret = inf;
int new_v = vis | (1 << i);
if (dir) {
if (i + p[j] < n) {
ret = min(ret, 1 + sol(i + p[j], j, dir, new_v));
}
} else {
if (i - p[j] >= 0) {
ret = min(ret, 1 + sol(i - p[j], j, dir, new_v));
}
}
for (int new_j : g[i]) {
ret = min(ret, sol(i, new_j, 1, new_v));
ret = min(ret, sol(i, new_j, 0, new_v));
}
return ret;
}
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
cin >> n >> m;
for (int i = 0; i < m; i++) {
cin >> b[i] >> p[i];
g[b[i]].push_back(i);
}
target = b[1];
memset(dp, -1, sizeof dp);
cout << sol(0, 0, 1, 0) << '\n';
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
1100 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
1104 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
1100 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
1100 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
1104 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |