Submission #377168

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
377168	2021-03-13T07:09:53 Z	jamielim	Bigger segments (IZhO19_segments)	C++14	100 / 100	94 ms	24188 KB

segments

    #include <bits/stdc++.h>
    using namespace std;
     
    #define fi first
    #define se second
    #define mp make_pair
    #define pb emplace_back
    #define ALL(x) x.begin(),x.end()
    #define SZ(x) (int)x.size()
    typedef long long ll;
    typedef pair<int,int> ii;
    typedef pair<ii,ii> i4;
    const int MOD=1000000007;
    const int INF=1012345678;
    const ll LLINF=1012345678012345678LL;
    const double PI=3.1415926536;
    const double EPS=1e-14;
     
    int n;
    ll arr[500005];
    ll pre[500005];
    ll sz[500005];
    int ans[500005];
     
    int main(){
    	scanf("%d",&n);
    	for(int i=0;i<n;i++){
    		scanf("%lld",&arr[i]);
    		if(i==0)pre[0]=arr[0];
    		else pre[i]=pre[i-1]+arr[i];
    	}
    	deque<pair<ll,int> > q;
    	sz[0]=arr[0];ans[0]=1;
    	q.pb(sz[0]+pre[0],0);
    	for(int i=1;i<n;i++){
    		sz[i]=sz[i-1]+arr[i];
    		ans[i]=ans[i-1];
    		while(!q.empty()&&q.front().fi<=pre[i]){
    			sz[i]=pre[i]-pre[q.front().se];
    			ans[i]=ans[q.front().se]+1;
    			q.pop_front();
    		}
    		while(!q.empty()&&q.back().fi>=sz[i]+pre[i])q.pop_back();
    		q.pb(sz[i]+pre[i],i);
    	}
    	printf("%d",ans[n-1]);
    }
    // sz[j]<=pre[i]-pre[j] -> sz[j]+pre[j]<=pre[i]

Compilation message

segments.cpp: In function 'int main()':
segments.cpp:26:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   26 |      scanf("%d",&n);
      |      ~~~~~^~~~~~~~~
segments.cpp:28:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   28 |       scanf("%lld",&arr[i]);
      |       ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct

Subtask #2
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct

Subtask #3
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct
31	Correct	1 ms	492 KB	Output is correct
32	Correct	1 ms	492 KB	Output is correct
33	Correct	1 ms	492 KB	Output is correct
34	Correct	1 ms	492 KB	Output is correct
35	Correct	2 ms	492 KB	Output is correct
36	Correct	1 ms	492 KB	Output is correct
37	Correct	1 ms	492 KB	Output is correct
38	Correct	1 ms	364 KB	Output is correct
39	Correct	1 ms	492 KB	Output is correct
40	Correct	1 ms	512 KB	Output is correct
41	Correct	1 ms	492 KB	Output is correct
42	Correct	1 ms	492 KB	Output is correct
43	Correct	1 ms	492 KB	Output is correct
44	Correct	1 ms	492 KB	Output is correct
45	Correct	1 ms	512 KB	Output is correct

Subtask #4
36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct
31	Correct	1 ms	492 KB	Output is correct
32	Correct	1 ms	492 KB	Output is correct
33	Correct	1 ms	492 KB	Output is correct
34	Correct	1 ms	492 KB	Output is correct
35	Correct	2 ms	492 KB	Output is correct
36	Correct	1 ms	492 KB	Output is correct
37	Correct	1 ms	492 KB	Output is correct
38	Correct	1 ms	364 KB	Output is correct
39	Correct	1 ms	492 KB	Output is correct
40	Correct	1 ms	512 KB	Output is correct
41	Correct	1 ms	492 KB	Output is correct
42	Correct	1 ms	492 KB	Output is correct
43	Correct	1 ms	492 KB	Output is correct
44	Correct	1 ms	492 KB	Output is correct
45	Correct	1 ms	512 KB	Output is correct
46	Correct	14 ms	5100 KB	Output is correct
47	Correct	14 ms	3692 KB	Output is correct
48	Correct	20 ms	3948 KB	Output is correct
49	Correct	19 ms	4204 KB	Output is correct
50	Correct	17 ms	4076 KB	Output is correct
51	Correct	19 ms	4076 KB	Output is correct
52	Correct	10 ms	2156 KB	Output is correct
53	Correct	6 ms	1516 KB	Output is correct
54	Correct	14 ms	3308 KB	Output is correct
55	Correct	18 ms	4076 KB	Output is correct
56	Correct	14 ms	3564 KB	Output is correct
57	Correct	14 ms	4204 KB	Output is correct
58	Correct	14 ms	3820 KB	Output is correct
59	Correct	14 ms	3692 KB	Output is correct
60	Correct	14 ms	3692 KB	Output is correct

Subtask #5
27.0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct
31	Correct	1 ms	492 KB	Output is correct
32	Correct	1 ms	492 KB	Output is correct
33	Correct	1 ms	492 KB	Output is correct
34	Correct	1 ms	492 KB	Output is correct
35	Correct	2 ms	492 KB	Output is correct
36	Correct	1 ms	492 KB	Output is correct
37	Correct	1 ms	492 KB	Output is correct
38	Correct	1 ms	364 KB	Output is correct
39	Correct	1 ms	492 KB	Output is correct
40	Correct	1 ms	512 KB	Output is correct
41	Correct	1 ms	492 KB	Output is correct
42	Correct	1 ms	492 KB	Output is correct
43	Correct	1 ms	492 KB	Output is correct
44	Correct	1 ms	492 KB	Output is correct
45	Correct	1 ms	512 KB	Output is correct
46	Correct	14 ms	5100 KB	Output is correct
47	Correct	14 ms	3692 KB	Output is correct
48	Correct	20 ms	3948 KB	Output is correct
49	Correct	19 ms	4204 KB	Output is correct
50	Correct	17 ms	4076 KB	Output is correct
51	Correct	19 ms	4076 KB	Output is correct
52	Correct	10 ms	2156 KB	Output is correct
53	Correct	6 ms	1516 KB	Output is correct
54	Correct	14 ms	3308 KB	Output is correct
55	Correct	18 ms	4076 KB	Output is correct
56	Correct	14 ms	3564 KB	Output is correct
57	Correct	14 ms	4204 KB	Output is correct
58	Correct	14 ms	3820 KB	Output is correct
59	Correct	14 ms	3692 KB	Output is correct
60	Correct	14 ms	3692 KB	Output is correct
61	Correct	69 ms	24188 KB	Output is correct
62	Correct	67 ms	20204 KB	Output is correct
63	Correct	71 ms	17388 KB	Output is correct
64	Correct	92 ms	18540 KB	Output is correct
65	Correct	84 ms	18924 KB	Output is correct
66	Correct	93 ms	18796 KB	Output is correct
67	Correct	71 ms	15212 KB	Output is correct
68	Correct	37 ms	7788 KB	Output is correct
69	Correct	67 ms	15084 KB	Output is correct
70	Correct	94 ms	18924 KB	Output is correct
71	Correct	64 ms	15980 KB	Output is correct
72	Correct	87 ms	19832 KB	Output is correct
73	Correct	72 ms	18156 KB	Output is correct
74	Correct	72 ms	17260 KB	Output is correct
75	Correct	73 ms	17344 KB	Output is correct

Submission #377168

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