#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main(){
int n, k; cin>>n>>k;
vector<vector<int>>dp(n+1, vector<int>(n+1));
vector<int>v(n);
for (int i=0; i<n; i++){
cin>>v[i];
if (dp[0][i]!=-1 and v[i]-dp[0][i]<=k) dp[0][i+1]=v[i];
else dp[0][i+1]=-1;
}if (dp[0][n]!=-1){
cout<<0<<endl;
return 0;
}for (int i=1; i<=n; i++){
for (int j=1; j<=n; j++){
int a=-1, b=-1;
if (dp[i-1][j-1]!=-1) a=dp[i-1][j-1]+k;
if (dp[i][j-1]!=-1 and v[i-1]-dp[i][j-1]<=k) b=v[i-1];
dp[i][j]=max(a, b);
}if (dp[i][n]!=-1){
cout<<i<<endl;
return 0;
}
}return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |