#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int N = 3010;
const int INF = 1e9;
int dp[N][N];
int main() {
ios::sync_with_stdio(0);
cin.tie(0);cout.tie(0);
int n;
cin >> n;
int L[n + 1], R[n + 1];
for(int i = 1; i <= n; i++)
cin >> L[i] >> R[i];
dp[1][n] = 0;
for(int len = n - 1; len >= 1; len--) {
for(int l = 1; l <= n - len + 1; l++) {
int r = l + len - 1;
dp[l][r] = INF;
for(int i = l; i <= r; i++) {
dp[l][r] = min(dp[l][r], dp[min(l, L[i])][max(r, R[i])] + 1);
}
}
}
int q;
cin >> q;
while(q--) {
int x;
cin >> x;
cout << (dp[x][x] == INF ? -1 : dp[x][x]) << '\n';
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Execution timed out |
2075 ms |
2120 KB |
Time limit exceeded |
5 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
328 KB |
Output is correct |
11 |
Correct |
11 ms |
1604 KB |
Output is correct |
12 |
Correct |
17 ms |
1620 KB |
Output is correct |
13 |
Correct |
13 ms |
1604 KB |
Output is correct |
14 |
Correct |
12 ms |
1564 KB |
Output is correct |
15 |
Correct |
15 ms |
1620 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
328 KB |
Output is correct |
11 |
Correct |
11 ms |
1604 KB |
Output is correct |
12 |
Correct |
17 ms |
1620 KB |
Output is correct |
13 |
Correct |
13 ms |
1604 KB |
Output is correct |
14 |
Correct |
12 ms |
1564 KB |
Output is correct |
15 |
Correct |
15 ms |
1620 KB |
Output is correct |
16 |
Execution timed out |
2074 ms |
5652 KB |
Time limit exceeded |
17 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
328 KB |
Output is correct |
11 |
Correct |
11 ms |
1604 KB |
Output is correct |
12 |
Correct |
17 ms |
1620 KB |
Output is correct |
13 |
Correct |
13 ms |
1604 KB |
Output is correct |
14 |
Correct |
12 ms |
1564 KB |
Output is correct |
15 |
Correct |
15 ms |
1620 KB |
Output is correct |
16 |
Execution timed out |
2074 ms |
5652 KB |
Time limit exceeded |
17 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Execution timed out |
2075 ms |
2120 KB |
Time limit exceeded |
5 |
Halted |
0 ms |
0 KB |
- |