답안 #402657

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
402657	2021-05-12T08:08:18 Z	Ruxandra985	Bigger segments (IZhO19_segments)	C++14	100 / 100	126 ms	14948 KB

segments

#include <bits/stdc++.h>
#define DIMN 500010
using namespace std;
pair <int, int> dp[DIMN];
int v[DIMN];
long long sp[DIMN];
int main()
{
    FILE *fin = stdin;
    FILE *fout = stdout;
    int n , i , st , dr , mid;
    fscanf (fin,"%d",&n);
    for (i = 1 ; i <= n ; i++){
        fscanf (fin,"%d",&v[i]);
        sp[i] = v[i] + sp[i - 1];
        dp[i] = make_pair(1 ,  1);/// o secventa, incepe la 1 si se termina la i
    }

    for (i = 1 ; i <= n ; i++){

        if (i > 1){

            /// 1. iei o sg secventa de la 1 la i, initializat
            /// 2. prelungesti cu 1 secventa de la i - 1

            if (dp[i].first < dp[i - 1].first || (dp[i].first == dp[i - 1].first && dp[i].second < dp[i - 1].second)){
                dp[i].first = dp[i - 1].first;
                dp[i].second = dp[i - 1].second;
            }

        }

        /// acuma ma duc in unele mai mari

        st = i + 1;
        dr = n;
        while (st <= dr){
            mid = (st + dr)/2;

            if (sp[mid] - sp[i] >= sp[i] - sp[dp[i].second - 1]) /// e ok
                dr = mid - 1;
            else st = mid + 1;

        }

        /// solutia in st

        if (dp[st].first < dp[i].first + 1 || (dp[st].first == dp[i].first + 1 && i + 1 > dp[st].second)){
            dp[st].first = dp[i].first + 1;
            dp[st].second = i + 1;
        }


    }

    fprintf (fout,"%d",dp[n].first);


    return 0;
}

Compilation message

segments.cpp: In function 'int main()':
segments.cpp:12:12: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     fscanf (fin,"%d",&n);
      |     ~~~~~~~^~~~~~~~~~~~~
segments.cpp:14:16: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |         fscanf (fin,"%d",&v[i]);
      |         ~~~~~~~^~~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	308 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct
29	Correct	1 ms	332 KB	Output is correct
30	Correct	1 ms	312 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	308 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct
29	Correct	1 ms	332 KB	Output is correct
30	Correct	1 ms	312 KB	Output is correct
31	Correct	1 ms	332 KB	Output is correct
32	Correct	1 ms	332 KB	Output is correct
33	Correct	1 ms	332 KB	Output is correct
34	Correct	1 ms	332 KB	Output is correct
35	Correct	2 ms	332 KB	Output is correct
36	Correct	1 ms	332 KB	Output is correct
37	Correct	2 ms	380 KB	Output is correct
38	Correct	1 ms	332 KB	Output is correct
39	Correct	2 ms	332 KB	Output is correct
40	Correct	2 ms	332 KB	Output is correct
41	Correct	1 ms	332 KB	Output is correct
42	Correct	1 ms	332 KB	Output is correct
43	Correct	1 ms	332 KB	Output is correct
44	Correct	1 ms	332 KB	Output is correct
45	Correct	1 ms	316 KB	Output is correct

Subtask #4
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	308 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct
29	Correct	1 ms	332 KB	Output is correct
30	Correct	1 ms	312 KB	Output is correct
31	Correct	1 ms	332 KB	Output is correct
32	Correct	1 ms	332 KB	Output is correct
33	Correct	1 ms	332 KB	Output is correct
34	Correct	1 ms	332 KB	Output is correct
35	Correct	2 ms	332 KB	Output is correct
36	Correct	1 ms	332 KB	Output is correct
37	Correct	2 ms	380 KB	Output is correct
38	Correct	1 ms	332 KB	Output is correct
39	Correct	2 ms	332 KB	Output is correct
40	Correct	2 ms	332 KB	Output is correct
41	Correct	1 ms	332 KB	Output is correct
42	Correct	1 ms	332 KB	Output is correct
43	Correct	1 ms	332 KB	Output is correct
44	Correct	1 ms	332 KB	Output is correct
45	Correct	1 ms	316 KB	Output is correct
46	Correct	14 ms	2600 KB	Output is correct
47	Correct	17 ms	2640 KB	Output is correct
48	Correct	18 ms	2980 KB	Output is correct
49	Correct	18 ms	3204 KB	Output is correct
50	Correct	18 ms	3248 KB	Output is correct
51	Correct	21 ms	3148 KB	Output is correct
52	Correct	11 ms	1728 KB	Output is correct
53	Correct	7 ms	1084 KB	Output is correct
54	Correct	16 ms	2488 KB	Output is correct
55	Correct	19 ms	3236 KB	Output is correct
56	Correct	14 ms	2636 KB	Output is correct
57	Correct	15 ms	2620 KB	Output is correct
58	Correct	15 ms	2612 KB	Output is correct
59	Correct	15 ms	2852 KB	Output is correct
60	Correct	15 ms	2856 KB	Output is correct

Subtask #5
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	308 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct
29	Correct	1 ms	332 KB	Output is correct
30	Correct	1 ms	312 KB	Output is correct
31	Correct	1 ms	332 KB	Output is correct
32	Correct	1 ms	332 KB	Output is correct
33	Correct	1 ms	332 KB	Output is correct
34	Correct	1 ms	332 KB	Output is correct
35	Correct	2 ms	332 KB	Output is correct
36	Correct	1 ms	332 KB	Output is correct
37	Correct	2 ms	380 KB	Output is correct
38	Correct	1 ms	332 KB	Output is correct
39	Correct	2 ms	332 KB	Output is correct
40	Correct	2 ms	332 KB	Output is correct
41	Correct	1 ms	332 KB	Output is correct
42	Correct	1 ms	332 KB	Output is correct
43	Correct	1 ms	332 KB	Output is correct
44	Correct	1 ms	332 KB	Output is correct
45	Correct	1 ms	316 KB	Output is correct
46	Correct	14 ms	2600 KB	Output is correct
47	Correct	17 ms	2640 KB	Output is correct
48	Correct	18 ms	2980 KB	Output is correct
49	Correct	18 ms	3204 KB	Output is correct
50	Correct	18 ms	3248 KB	Output is correct
51	Correct	21 ms	3148 KB	Output is correct
52	Correct	11 ms	1728 KB	Output is correct
53	Correct	7 ms	1084 KB	Output is correct
54	Correct	16 ms	2488 KB	Output is correct
55	Correct	19 ms	3236 KB	Output is correct
56	Correct	14 ms	2636 KB	Output is correct
57	Correct	15 ms	2620 KB	Output is correct
58	Correct	15 ms	2612 KB	Output is correct
59	Correct	15 ms	2852 KB	Output is correct
60	Correct	15 ms	2856 KB	Output is correct
61	Correct	67 ms	11984 KB	Output is correct
62	Correct	84 ms	11920 KB	Output is correct
63	Correct	84 ms	12436 KB	Output is correct
64	Correct	126 ms	14552 KB	Output is correct
65	Correct	85 ms	14948 KB	Output is correct
66	Correct	100 ms	14900 KB	Output is correct
67	Correct	79 ms	11884 KB	Output is correct
68	Correct	40 ms	6160 KB	Output is correct
69	Correct	77 ms	11100 KB	Output is correct
70	Correct	90 ms	14916 KB	Output is correct
71	Correct	68 ms	12000 KB	Output is correct
72	Correct	74 ms	12328 KB	Output is correct
73	Correct	81 ms	13128 KB	Output is correct
74	Correct	74 ms	13360 KB	Output is correct
75	Correct	74 ms	13332 KB	Output is correct

답안 #402657

Compilation message

Subtask #1 13.0 / 13.0

Subtask #2 14.0 / 14.0

Subtask #3 10.0 / 10.0

Subtask #4 36.0 / 36.0

Subtask #5 27.0 / 27.0

Subtask #1
13.0 / 13.0

Subtask #2
14.0 / 14.0

Subtask #3
10.0 / 10.0

Subtask #4
36.0 / 36.0

Subtask #5
27.0 / 27.0