답안 #162888

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
162888	2019-11-10T07:53:11 Z	abacaba	Bigger segments (IZhO19_segments)	C++14	27 / 100	1500 ms	760 KB

segments

#include <iostream>
#include <string>
#include <unordered_map>
#include <cstring>
#include <chrono>
#include <vector>
#include <map>
#include <random>
#include <set>
#include <algorithm>
#include <math.h>
#include <cstdio>
#include <stdio.h>
#include <queue>
#include <bitset>
#include <cstdlib>
#include <deque>
#include <cassert>
#include <stack>
using namespace std;

#define int long long

const int inf = 2e9;
const int mod = 1e9 + 7;
const int N = 5e5 + 15;
int n, m, a[N], p[N], maxp[N], dp[N], sumback[N];

main() {
    ios_base::sync_with_stdio(0); cout.tie(0); cin.tie(0);
    cin >> n;
    for(int i = 1; i <= n; ++i) {
        cin >> a[i];
        p[i] = p[i-1] + a[i];
        maxp[i] = max(maxp[i-1], p[i]);
    }
    for(int i = 1; i <= n; ++i) {
        dp[i] = 1;
        for(int f = 0; f < i; ++f)
            for(int l = f + 1; l < i; ++l)
                if(2 * p[l] - p[sumback[l]] <= p[i]) {
                    if(dp[l] + 1 >= dp[i])
                        sumback[i] = max(sumback[i], l);
                    dp[i] = max(dp[i], dp[l] + 1);
                }
    }
    cout << dp[n] << endl;
    return 0;
}

Compilation message

segments.cpp:29:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^

Subtask #1

13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	380 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct

Subtask #2

14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	380 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	23 ms	376 KB	Output is correct
17	Correct	43 ms	376 KB	Output is correct
18	Correct	48 ms	376 KB	Output is correct
19	Correct	45 ms	376 KB	Output is correct
20	Correct	50 ms	376 KB	Output is correct
21	Correct	49 ms	504 KB	Output is correct
22	Correct	26 ms	376 KB	Output is correct
23	Correct	12 ms	376 KB	Output is correct
24	Correct	49 ms	376 KB	Output is correct
25	Correct	49 ms	376 KB	Output is correct
26	Correct	51 ms	376 KB	Output is correct
27	Correct	34 ms	376 KB	Output is correct
28	Correct	50 ms	424 KB	Output is correct
29	Correct	50 ms	476 KB	Output is correct
30	Correct	50 ms	384 KB	Output is correct

Subtask #3

0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	380 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	23 ms	376 KB	Output is correct
17	Correct	43 ms	376 KB	Output is correct
18	Correct	48 ms	376 KB	Output is correct
19	Correct	45 ms	376 KB	Output is correct
20	Correct	50 ms	376 KB	Output is correct
21	Correct	49 ms	504 KB	Output is correct
22	Correct	26 ms	376 KB	Output is correct
23	Correct	12 ms	376 KB	Output is correct
24	Correct	49 ms	376 KB	Output is correct
25	Correct	49 ms	376 KB	Output is correct
26	Correct	51 ms	376 KB	Output is correct
27	Correct	34 ms	376 KB	Output is correct
28	Correct	50 ms	424 KB	Output is correct
29	Correct	50 ms	476 KB	Output is correct
30	Correct	50 ms	384 KB	Output is correct
31	Execution timed out	1556 ms	760 KB	Time limit exceeded
32	Halted	0 ms	0 KB	-

Subtask #4

0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	380 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	23 ms	376 KB	Output is correct
17	Correct	43 ms	376 KB	Output is correct
18	Correct	48 ms	376 KB	Output is correct
19	Correct	45 ms	376 KB	Output is correct
20	Correct	50 ms	376 KB	Output is correct
21	Correct	49 ms	504 KB	Output is correct
22	Correct	26 ms	376 KB	Output is correct
23	Correct	12 ms	376 KB	Output is correct
24	Correct	49 ms	376 KB	Output is correct
25	Correct	49 ms	376 KB	Output is correct
26	Correct	51 ms	376 KB	Output is correct
27	Correct	34 ms	376 KB	Output is correct
28	Correct	50 ms	424 KB	Output is correct
29	Correct	50 ms	476 KB	Output is correct
30	Correct	50 ms	384 KB	Output is correct
31	Execution timed out	1556 ms	760 KB	Time limit exceeded
32	Halted	0 ms	0 KB	-

Subtask #5

0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	380 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	23 ms	376 KB	Output is correct
17	Correct	43 ms	376 KB	Output is correct
18	Correct	48 ms	376 KB	Output is correct
19	Correct	45 ms	376 KB	Output is correct
20	Correct	50 ms	376 KB	Output is correct
21	Correct	49 ms	504 KB	Output is correct
22	Correct	26 ms	376 KB	Output is correct
23	Correct	12 ms	376 KB	Output is correct
24	Correct	49 ms	376 KB	Output is correct
25	Correct	49 ms	376 KB	Output is correct
26	Correct	51 ms	376 KB	Output is correct
27	Correct	34 ms	376 KB	Output is correct
28	Correct	50 ms	424 KB	Output is correct
29	Correct	50 ms	476 KB	Output is correct
30	Correct	50 ms	384 KB	Output is correct
31	Execution timed out	1556 ms	760 KB	Time limit exceeded
32	Halted	0 ms	0 KB	-