# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
466487 | 2021-08-19T12:40:02 Z | mariowong | 구경하기 (JOI13_watching) | C++14 | 1000 ms | 68396 KB |
#include <bits/stdc++.h> using namespace std; int l,r,mid,n,p,q,a[2005],dp[2005][2005]; vector <int> v; deque <int> dq; map <int,bool> m; int main(){ scanf("%d%d%d",&n,&p,&q); for (int i=1;i<=n;i++){ scanf("%d",&a[i]); } sort(a+1,a+1+n); for (int i=1;i<=n;i++){ for (int j=i;j<=n;j++){ if (!m[a[j]-a[i]+1]) v.push_back(a[j]-a[i]+1); if (!m[(a[j]-a[i]+1)/2+(a[j]-a[i]+1)%2]) v.push_back((a[j]-a[i]+1)/2+(a[j]-a[i]+1)%2); m[(a[j]-a[i]+1)/2+(a[j]-a[i]+1)%2]=true; m[a[j]-a[i]+1]=true; } } sort(v.begin(),v.end()); l=0; r=(int)v.size()-1; while (l < r){ mid=(l+r)/2; for (int i=0;i<=min(n,q);i++){ //used how many large for (int j=1;j<=n;j++){ dp[i][j]=1e9; } } for (int i=0;i<=min(n,q);i++){ //used how many large if (i > 0){ dq.push_back(0); for (int j=1;j<=n;j++){ /* while (!dq.empty() && a[j]-a[dq.front()+1]+1 > 2*v[mid]) dq.pop_front(); if (dq.empty()){ l=mid+1; while (!dq.empty()) dq.pop_front(); goto out; } else dp[i][j]=dp[i-1][dq.front()]; while (!dq.empty() && dp[i-1][j] <= dp[i-1][dq.back()]) dq.pop_back(); dq.push_back(j);*/ } while (!dq.empty()) dq.pop_back(); } dq.push_back(0); for (int j=1;j<=n;j++){ /* while (!dq.empty() && a[j]-a[dq.front()+1]+1 > v[mid]) dq.pop_front(); if (!dq.empty()) dp[i][j]=min(dp[i][j],dp[i][dq.front()]+1); while (!dq.empty() && dp[i][j] <= dp[i][dq.back()]) dq.pop_back(); dq.push_back(j);*/ } while (!dq.empty()) dq.pop_back(); } if (dp[min(n,q)][n] <= p) r=mid; else l=mid+1; out:; } printf("%d\n",v[l]); return 0; }
Compilation message
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Incorrect | 4 ms | 716 KB | Output isn't correct |
2 | Halted | 0 ms | 0 KB | - |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Execution timed out | 1092 ms | 68396 KB | Time limit exceeded |
2 | Halted | 0 ms | 0 KB | - |