oj.uz

Submission #199421

# Submission time Handle Problem Language Result Execution time Memory
199421 2020-02-01T11:00:39 Z semiauto Bigger segments (IZhO19_segments) C++14
73 / 100
 1500 ms 14456 KB 
#include <bits/stdc++.h>
using namespace std;
long long sum[500001],tree[1050000];
int dp[500001];
long long minn(long long a,long long b) {
    if (a>b)
        return b;
    return a;
}
void update(int pos,long long val) {
    while (pos) {
        tree[pos]=minn(tree[pos],val);
        pos/=2;
    }
}
long long solve(int p,int l,int r,int x,int y) {
    if (x>r || l>y)
        return 2000000000000000000ll;
    if (l>=x && r<=y)
        return tree[p];
    return minn(solve(2*p,l,(l+r)/2,x,y),solve(2*p+1,(l+r)/2+1,r,x,y));
}
int main() {
    int n,N=1;
    cin>>n;
    while (N<n)
        N*=2;
        for (int i=0;i<2*N;i++)
        tree[i]=2000000000000000000ll;
    for (int i=1;i<=n;i++) {
        int x;
        scanf("%d",&x);
        sum[i]=sum[i-1]+x;
        int pos=i;
        for (int j=18;j>=0;j--)
            if (pos-(1<<j)>0 && solve(1,N,2*N-1,pos-(1<<j)+N-1,pos-1+N-1)>sum[i])
                pos-=(1<<j);
        dp[i]=dp[pos-1]+1;
        update(i+N-1,2*sum[i]-sum[pos-1]);
    }
    cout<<dp[n]<<endl;
}

Compilation message

segments.cpp: In function 'int main()':
segments.cpp:26:5: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
     while (N<n)
     ^~~~~
segments.cpp:28:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while'
         for (int i=0;i<2*N;i++)
         ^~~
segments.cpp:32:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&x);
         ~~~~~^~~~~~~~~

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 252 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 6 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 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 248 KB Output is correct
13 Correct 5 ms 376 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 252 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 6 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 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 248 KB Output is correct
13 Correct 5 ms 376 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 6 ms 376 KB Output is correct
18 Correct 6 ms 376 KB Output is correct
19 Correct 6 ms 376 KB Output is correct
20 Correct 6 ms 376 KB Output is correct
21 Correct 6 ms 376 KB Output is correct
22 Correct 6 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 6 ms 376 KB Output is correct
25 Correct 6 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 6 ms 380 KB Output is correct
28 Correct 6 ms 376 KB Output is correct
29 Correct 6 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 252 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 6 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 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 248 KB Output is correct
13 Correct 5 ms 376 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 6 ms 376 KB Output is correct
18 Correct 6 ms 376 KB Output is correct
19 Correct 6 ms 376 KB Output is correct
20 Correct 6 ms 376 KB Output is correct
21 Correct 6 ms 376 KB Output is correct
22 Correct 6 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 6 ms 376 KB Output is correct
25 Correct 6 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 6 ms 380 KB Output is correct
28 Correct 6 ms 376 KB Output is correct
29 Correct 6 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 9 ms 380 KB Output is correct
32 Correct 11 ms 376 KB Output is correct
33 Correct 11 ms 504 KB Output is correct
34 Correct 10 ms 376 KB Output is correct
35 Correct 11 ms 376 KB Output is correct
36 Correct 11 ms 376 KB Output is correct
37 Correct 10 ms 376 KB Output is correct
38 Correct 9 ms 504 KB Output is correct
39 Correct 11 ms 376 KB Output is correct
40 Correct 11 ms 376 KB Output is correct
41 Correct 10 ms 376 KB Output is correct
42 Correct 10 ms 376 KB Output is correct
43 Correct 11 ms 376 KB Output is correct
44 Correct 11 ms 376 KB Output is correct
45 Correct 10 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 252 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 6 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 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 248 KB Output is correct
13 Correct 5 ms 376 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 6 ms 376 KB Output is correct
18 Correct 6 ms 376 KB Output is correct
19 Correct 6 ms 376 KB Output is correct
20 Correct 6 ms 376 KB Output is correct
21 Correct 6 ms 376 KB Output is correct
22 Correct 6 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 6 ms 376 KB Output is correct
25 Correct 6 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 6 ms 380 KB Output is correct
28 Correct 6 ms 376 KB Output is correct
29 Correct 6 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 9 ms 380 KB Output is correct
32 Correct 11 ms 376 KB Output is correct
33 Correct 11 ms 504 KB Output is correct
34 Correct 10 ms 376 KB Output is correct
35 Correct 11 ms 376 KB Output is correct
36 Correct 11 ms 376 KB Output is correct
37 Correct 10 ms 376 KB Output is correct
38 Correct 9 ms 504 KB Output is correct
39 Correct 11 ms 376 KB Output is correct
40 Correct 11 ms 376 KB Output is correct
41 Correct 10 ms 376 KB Output is correct
42 Correct 10 ms 376 KB Output is correct
43 Correct 11 ms 376 KB Output is correct
44 Correct 11 ms 376 KB Output is correct
45 Correct 10 ms 376 KB Output is correct
46 Correct 195 ms 3580 KB Output is correct
47 Correct 381 ms 3708 KB Output is correct
48 Correct 362 ms 3652 KB Output is correct
49 Correct 370 ms 3576 KB Output is correct
50 Correct 370 ms 3576 KB Output is correct
51 Correct 368 ms 3576 KB Output is correct
52 Correct 177 ms 2040 KB Output is correct
53 Correct 96 ms 1144 KB Output is correct
54 Correct 377 ms 3704 KB Output is correct
55 Correct 384 ms 3576 KB Output is correct
56 Correct 356 ms 3556 KB Output is correct
57 Correct 348 ms 3576 KB Output is correct
58 Correct 400 ms 3576 KB Output is correct
59 Correct 365 ms 3576 KB Output is correct
60 Correct 381 ms 3544 KB Output is correct

Subtask #5
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 252 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 6 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 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 248 KB Output is correct
13 Correct 5 ms 376 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 6 ms 376 KB Output is correct
18 Correct 6 ms 376 KB Output is correct
19 Correct 6 ms 376 KB Output is correct
20 Correct 6 ms 376 KB Output is correct
21 Correct 6 ms 376 KB Output is correct
22 Correct 6 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 6 ms 376 KB Output is correct
25 Correct 6 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 6 ms 380 KB Output is correct
28 Correct 6 ms 376 KB Output is correct
29 Correct 6 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 9 ms 380 KB Output is correct
32 Correct 11 ms 376 KB Output is correct
33 Correct 11 ms 504 KB Output is correct
34 Correct 10 ms 376 KB Output is correct
35 Correct 11 ms 376 KB Output is correct
36 Correct 11 ms 376 KB Output is correct
37 Correct 10 ms 376 KB Output is correct
38 Correct 9 ms 504 KB Output is correct
39 Correct 11 ms 376 KB Output is correct
40 Correct 11 ms 376 KB Output is correct
41 Correct 10 ms 376 KB Output is correct
42 Correct 10 ms 376 KB Output is correct
43 Correct 11 ms 376 KB Output is correct
44 Correct 11 ms 376 KB Output is correct
45 Correct 10 ms 376 KB Output is correct
46 Correct 195 ms 3580 KB Output is correct
47 Correct 381 ms 3708 KB Output is correct
48 Correct 362 ms 3652 KB Output is correct
49 Correct 370 ms 3576 KB Output is correct
50 Correct 370 ms 3576 KB Output is correct
51 Correct 368 ms 3576 KB Output is correct
52 Correct 177 ms 2040 KB Output is correct
53 Correct 96 ms 1144 KB Output is correct
54 Correct 377 ms 3704 KB Output is correct
55 Correct 384 ms 3576 KB Output is correct
56 Correct 356 ms 3556 KB Output is correct
57 Correct 348 ms 3576 KB Output is correct
58 Correct 400 ms 3576 KB Output is correct
59 Correct 365 ms 3576 KB Output is correct
60 Correct 381 ms 3544 KB Output is correct
61 Correct 1204 ms 14456 KB Output is correct
62 Execution timed out 1580 ms 14072 KB Time limit exceeded
63 Halted 0 ms 0 KB -