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Submission #206898

# Submission time Handle Problem Language Result Execution time Memory
206898 2020-03-05T18:46:55 Z brcode Bigger segments (IZhO19_segments) C++14
100 / 100
 341 ms 16120 KB 
#include <iostream>
#include <bits/stdc++.h>
using namespace std;
const long long MAXN = 5e5+5;
long long pref[MAXN];
long long dp[MAXN];
long long previ[MAXN];
int main(){
    long long n;
    cin>>n;
    for(long long i=1;i<=n;i++){
        cin>>pref[i];
        pref[i] +=pref[i-1];
    }
    for(long long i=1;i<=n;i++){
        previ[i] = max(previ[i],previ[i-1]);
        dp[i] = dp[previ[i]]+1;
        //cout<<i<<" "<<dp[i]<<endl;
        long long l = i+1;
        long long r = n;
        long long target;
        if(previ[i]){
            target = pref[i]-pref[previ[i]];
        }else{
            target = pref[i];
        }
        long long tempans =0;
        while(l<=r){
            long long mid = (l+r)/2;

            if(target<=pref[mid]-pref[i]){
                r=mid-1;
                tempans= mid;
            }else{
                l=mid+1;
               //tempans = mid;
            }
        }
      //  cout<<i<<" "<<tempans<<endl; 
        if(tempans){
            previ[tempans] = max(previ[tempans],i);
            
        }
    }
    cout<<dp[n]<<endl;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 380 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 380 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 380 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 380 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 380 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 6 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 380 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 380 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 380 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 6 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 6 ms 376 KB Output is correct
32 Correct 7 ms 504 KB Output is correct
33 Correct 7 ms 376 KB Output is correct
34 Correct 6 ms 508 KB Output is correct
35 Correct 7 ms 376 KB Output is correct
36 Correct 7 ms 376 KB Output is correct
37 Correct 6 ms 376 KB Output is correct
38 Correct 6 ms 376 KB Output is correct
39 Correct 5 ms 376 KB Output is correct
40 Correct 7 ms 376 KB Output is correct
41 Correct 5 ms 376 KB Output is correct
42 Correct 6 ms 376 KB Output is correct
43 Correct 5 ms 376 KB Output is correct
44 Correct 6 ms 504 KB Output is correct
45 Correct 6 ms 376 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 380 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 380 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 380 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 6 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 6 ms 376 KB Output is correct
32 Correct 7 ms 504 KB Output is correct
33 Correct 7 ms 376 KB Output is correct
34 Correct 6 ms 508 KB Output is correct
35 Correct 7 ms 376 KB Output is correct
36 Correct 7 ms 376 KB Output is correct
37 Correct 6 ms 376 KB Output is correct
38 Correct 6 ms 376 KB Output is correct
39 Correct 5 ms 376 KB Output is correct
40 Correct 7 ms 376 KB Output is correct
41 Correct 5 ms 376 KB Output is correct
42 Correct 6 ms 376 KB Output is correct
43 Correct 5 ms 376 KB Output is correct
44 Correct 6 ms 504 KB Output is correct
45 Correct 6 ms 376 KB Output is correct
46 Correct 41 ms 3064 KB Output is correct
47 Correct 48 ms 3192 KB Output is correct
48 Correct 64 ms 3576 KB Output is correct
49 Correct 67 ms 3704 KB Output is correct
50 Correct 69 ms 3704 KB Output is correct
51 Correct 74 ms 3760 KB Output is correct
52 Correct 38 ms 2040 KB Output is correct
53 Correct 25 ms 1272 KB Output is correct
54 Correct 33 ms 2936 KB Output is correct
55 Correct 72 ms 3704 KB Output is correct
56 Correct 45 ms 3192 KB Output is correct
57 Correct 42 ms 3064 KB Output is correct
58 Correct 44 ms 3192 KB Output is correct
59 Correct 50 ms 3320 KB Output is correct
60 Correct 50 ms 3320 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 380 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 380 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 380 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 6 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 6 ms 376 KB Output is correct
32 Correct 7 ms 504 KB Output is correct
33 Correct 7 ms 376 KB Output is correct
34 Correct 6 ms 508 KB Output is correct
35 Correct 7 ms 376 KB Output is correct
36 Correct 7 ms 376 KB Output is correct
37 Correct 6 ms 376 KB Output is correct
38 Correct 6 ms 376 KB Output is correct
39 Correct 5 ms 376 KB Output is correct
40 Correct 7 ms 376 KB Output is correct
41 Correct 5 ms 376 KB Output is correct
42 Correct 6 ms 376 KB Output is correct
43 Correct 5 ms 376 KB Output is correct
44 Correct 6 ms 504 KB Output is correct
45 Correct 6 ms 376 KB Output is correct
46 Correct 41 ms 3064 KB Output is correct
47 Correct 48 ms 3192 KB Output is correct
48 Correct 64 ms 3576 KB Output is correct
49 Correct 67 ms 3704 KB Output is correct
50 Correct 69 ms 3704 KB Output is correct
51 Correct 74 ms 3760 KB Output is correct
52 Correct 38 ms 2040 KB Output is correct
53 Correct 25 ms 1272 KB Output is correct
54 Correct 33 ms 2936 KB Output is correct
55 Correct 72 ms 3704 KB Output is correct
56 Correct 45 ms 3192 KB Output is correct
57 Correct 42 ms 3064 KB Output is correct
58 Correct 44 ms 3192 KB Output is correct
59 Correct 50 ms 3320 KB Output is correct
60 Correct 50 ms 3320 KB Output is correct
61 Correct 187 ms 13944 KB Output is correct
62 Correct 202 ms 13944 KB Output is correct
63 Correct 221 ms 14456 KB Output is correct
64 Correct 316 ms 16120 KB Output is correct
65 Correct 324 ms 15992 KB Output is correct
66 Correct 341 ms 16020 KB Output is correct
67 Correct 268 ms 13560 KB Output is correct
68 Correct 141 ms 7032 KB Output is correct
69 Correct 148 ms 13048 KB Output is correct
70 Correct 331 ms 16020 KB Output is correct
71 Correct 181 ms 14072 KB Output is correct
72 Correct 209 ms 14456 KB Output is correct
73 Correct 239 ms 15096 KB Output is correct
74 Correct 251 ms 15352 KB Output is correct
75 Correct 251 ms 15352 KB Output is correct