oj.uz

답안 #391213

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
391213 2021-04-18T09:20:38 Z lukameladze Collecting Stamps 3 (JOI20_ho_t3) C++14
15 / 100
 68 ms 106004 KB 
# include <bits/stdc++.h>
#define f first
#define s second
#define pb push_back
using namespace std;
const int N=205;
long long  n,x[N],dp[N][N][N][2],t[N],le,ri,l,ans,ff,ff1;
long long go(long long x, long long xx) {
     if (x<xx) swap(x,xx);
     return min(x-xx,xx-x+l);
}
long long mn(long long a, long long b , long long c) {
     return(min(a,min(b,c)));
}
int main() {
     cin>>n>>l;
     for (int i=1; i<=n; i++) {
          cin>>x[i];
     }
     for (int i=1; i<=n; i++) {
          cin>>t[i];
     }
     for (int le=0; le<=n+1; le++) {
          for (int ri=0; ri<=n+1; ri++) {
               for (int cnt=0; cnt<=n+1; cnt++) {
                    dp[le][ri][cnt][0]=dp[le][ri][cnt][1]=1e17;
               }
          }
     }
     dp[0][0][0][0]=0;
     dp[0][0][0][1]=0;
     x[0]=l;
     for (int sz=1; sz<=n; sz++) {
          for (int ri=0; ri<=sz; ri++) {
               if (ri==sz) le=0; 
                    else le=n-(sz-ri)+1;
               ff=ff1=0;
               for (int cnt=0; cnt<=sz; cnt++) {
                    dp[le][ri][cnt][0]=mn(dp[le][ri][cnt][0],dp[(le+1)%(n+1)][ri][cnt][0]+go(x[(le+1)%(n+1)],x[le]),dp[(le+1)%(n+1)][ri][cnt][1]+go(x[ri], x[le]));
                    if (ri)
                    dp[le][ri][cnt][1]=mn(dp[le][ri][cnt][1],dp[le][ri-1][cnt][1]+go(x[ri-1], x[ri]),dp[le][ri-1][cnt][0]+go(x[le],x[ri]));
                  /* if (cnt<sz) {
                         if (dp[le][ri][cnt][0]<=t[le]) {
                              dp[le][ri][cnt+1][0]=min(dp[le][ri][cnt+1][0],dp[le][ri][cnt][0]);
                         }
                         if (dp[le][ri][cnt][1]<=t[ri] && !ff1) {
                              dp[le][ri][cnt+1][1]=min(dp[le][ri][cnt+1][1],dp[le][ri][cnt][1]);
                         }
                    }*/
                 //  if (cnt==5 && dp[le][ri][cnt][1]<1e9)cout<<le<<" "<<ri<<" "<<cnt<<" "<<dp[le][ri][cnt][1]<<endl;
                    if (dp[le][ri][cnt][0]<(long long)1e17 || dp[le][ri][cnt][1]<(long long)1e17) { ans=max(ans,(long long)cnt);}
               }
       //        if (sz==2 && le==6 && ri==1) cout<<dp[6][1][2][1]<<endl;
               for (int cnt=sz; cnt>=1; cnt--) {
                    if (dp[le][ri][cnt-1][1]<=t[ri] && !ff) {
                         ff=1;
                          
                         dp[le][ri][cnt][1]=min(dp[le][ri][cnt][1],dp[le][ri][cnt-1][1]);
                         //if (sz==2 && le==6 && ri==1 && cnt==2) 
                         // cout<<dp[le][ri][cnt][1]<<endl;
                    }
                    if (dp[le][ri][cnt-1][0]<=t[le] && !ff1) {
                         ff1=1;
                         dp[le][ri][cnt][0]=min(dp[le][ri][cnt][0],dp[le][ri][cnt-1][0]);
                    }
                    if (dp[le][ri][cnt][0]<(long long)1e17 || dp[le][ri][cnt][1]<(long long)1e17) { ans=max(ans,(long long)cnt);}
               }
          }
     }
     //cout<<dp[6][1][2][0]<<endl;
     cout<<ans<<endl;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 716 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 588 KB Output is correct
8 Correct 1 ms 716 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 972 KB Output is correct
13 Correct 1 ms 844 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 588 KB Output is correct
16 Correct 1 ms 844 KB Output is correct
17 Correct 1 ms 844 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 716 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 588 KB Output is correct
8 Correct 1 ms 716 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 972 KB Output is correct
13 Correct 1 ms 844 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 588 KB Output is correct
16 Correct 1 ms 844 KB Output is correct
17 Correct 1 ms 844 KB Output is correct
18 Correct 1 ms 1100 KB Output is correct
19 Correct 1 ms 716 KB Output is correct
20 Correct 1 ms 972 KB Output is correct
21 Correct 1 ms 1100 KB Output is correct
22 Correct 1 ms 716 KB Output is correct
23 Correct 1 ms 1228 KB Output is correct
24 Correct 1 ms 972 KB Output is correct
25 Correct 1 ms 1100 KB Output is correct
26 Correct 2 ms 1100 KB Output is correct
27 Correct 1 ms 556 KB Output is correct
28 Correct 1 ms 716 KB Output is correct
29 Correct 1 ms 1228 KB Output is correct
30 Correct 1 ms 1228 KB Output is correct
31 Correct 1 ms 1100 KB Output is correct
32 Correct 1 ms 972 KB Output is correct
33 Correct 1 ms 1196 KB Output is correct
34 Correct 2 ms 1228 KB Output is correct
35 Correct 1 ms 1228 KB Output is correct

Subtask #3
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 716 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 588 KB Output is correct
8 Correct 1 ms 716 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 972 KB Output is correct
13 Correct 1 ms 844 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 588 KB Output is correct
16 Correct 1 ms 844 KB Output is correct
17 Correct 1 ms 844 KB Output is correct
18 Correct 68 ms 106004 KB Output is correct
19 Correct 39 ms 64480 KB Output is correct
20 Correct 23 ms 34592 KB Output is correct
21 Correct 42 ms 60888 KB Output is correct
22 Correct 51 ms 78936 KB Output is correct
23 Correct 19 ms 29536 KB Output is correct
24 Correct 14 ms 23116 KB Output is correct
25 Correct 19 ms 28876 KB Output is correct
26 Correct 7 ms 11224 KB Output is correct
27 Correct 18 ms 30092 KB Output is correct
28 Correct 16 ms 21580 KB Output is correct
29 Incorrect 18 ms 30796 KB Output isn't correct
30 Halted 0 ms 0 KB -

Subtask #4
0 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 716 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 588 KB Output is correct
8 Correct 1 ms 716 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 972 KB Output is correct
13 Correct 1 ms 844 KB Output is correct
14 Correct 1 ms 588 KB Output is correct
15 Correct 1 ms 588 KB Output is correct
16 Correct 1 ms 844 KB Output is correct
17 Correct 1 ms 844 KB Output is correct
18 Correct 1 ms 1100 KB Output is correct
19 Correct 1 ms 716 KB Output is correct
20 Correct 1 ms 972 KB Output is correct
21 Correct 1 ms 1100 KB Output is correct
22 Correct 1 ms 716 KB Output is correct
23 Correct 1 ms 1228 KB Output is correct
24 Correct 1 ms 972 KB Output is correct
25 Correct 1 ms 1100 KB Output is correct
26 Correct 2 ms 1100 KB Output is correct
27 Correct 1 ms 556 KB Output is correct
28 Correct 1 ms 716 KB Output is correct
29 Correct 1 ms 1228 KB Output is correct
30 Correct 1 ms 1228 KB Output is correct
31 Correct 1 ms 1100 KB Output is correct
32 Correct 1 ms 972 KB Output is correct
33 Correct 1 ms 1196 KB Output is correct
34 Correct 2 ms 1228 KB Output is correct
35 Correct 1 ms 1228 KB Output is correct
36 Correct 68 ms 106004 KB Output is correct
37 Correct 39 ms 64480 KB Output is correct
38 Correct 23 ms 34592 KB Output is correct
39 Correct 42 ms 60888 KB Output is correct
40 Correct 51 ms 78936 KB Output is correct
41 Correct 19 ms 29536 KB Output is correct
42 Correct 14 ms 23116 KB Output is correct
43 Correct 19 ms 28876 KB Output is correct
44 Correct 7 ms 11224 KB Output is correct
45 Correct 18 ms 30092 KB Output is correct
46 Correct 16 ms 21580 KB Output is correct
47 Incorrect 18 ms 30796 KB Output isn't correct
48 Halted 0 ms 0 KB -