답안 #173578

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
173578	2020-01-04T16:23:38 Z	juggernaut	Bigger segments (IZhO19_segments)	C++14	73 / 100	1500 ms	15460 KB

segments

//Just try and the idea will come
#include<bits/stdc++.h>
#define int long long int
#define fr first
#define sc second
using namespace std;
int pref[500001],i,n,l,r,m,tree[2000001];
pair<int,int>dp[500001];
void update(int v,int l,int r,int pos,int val){
      if(l==pos&&r==pos){
            tree[v]=val;
            return;
      }
      int mid=(l+r)>>1;
      if(pos<=mid)update((v<<1),l,mid,pos,val);
      else update((v<<1)+1,mid+1,r,pos,val);
      tree[v]=min(tree[(v<<1)],tree[(v<<1)+1]);
}
int get(int v,int l,int r,int ql,int qr){
      if(ql<=l&&r<=qr)return tree[v];
      if(r<ql||qr<l)return 1e15;
      int mid=(l+r)>>1;
      return min(get((v<<1),l,mid,ql,qr),get((v<<1)+1,mid+1,r,ql,qr));
}
main(){
    scanf("%lld",&n);
    for(i=1;i<=n;i++){
        scanf("%lld",&pref[i]);
        pref[i]+=pref[i-1];
    }
    for(i=1;i<=n;i++){
        /*for(j=1;j<=i;j++)
            if(pref[i]-pref[j-1]>=dp[j-1].sc)dp[i]={dp[j-1].fr+1,pref[i]-pref[j-1]};*/
        l=0,r=i-1;
        while(l<r){
            m=(l+r+1)>>1;
            if(pref[i]>=get(1,0,n,m,i-1))l=m;
            else r=m-1;
        }
        dp[i]={dp[l].fr+1,pref[i]-pref[l]};
        update(1,0,n,i,dp[i].sc+pref[i]);
    }
    printf("%lld",dp[n].fr);
}

Compilation message

segments.cpp:25:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^
segments.cpp: In function 'int main()':
segments.cpp:26:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld",&n);
     ~~~~~^~~~~~~~~~~
segments.cpp:28:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&pref[i]);
         ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	380 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	376 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	380 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	380 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	376 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	380 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	2 ms	376 KB	Output is correct
17	Correct	3 ms	376 KB	Output is correct
18	Correct	3 ms	376 KB	Output is correct
19	Correct	2 ms	380 KB	Output is correct
20	Correct	3 ms	376 KB	Output is correct
21	Correct	3 ms	376 KB	Output is correct
22	Correct	2 ms	372 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	3 ms	376 KB	Output is correct
25	Correct	3 ms	376 KB	Output is correct
26	Correct	3 ms	376 KB	Output is correct
27	Correct	3 ms	376 KB	Output is correct
28	Correct	3 ms	376 KB	Output is correct
29	Correct	3 ms	376 KB	Output is correct
30	Correct	3 ms	376 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	380 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	376 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	380 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	2 ms	376 KB	Output is correct
17	Correct	3 ms	376 KB	Output is correct
18	Correct	3 ms	376 KB	Output is correct
19	Correct	2 ms	380 KB	Output is correct
20	Correct	3 ms	376 KB	Output is correct
21	Correct	3 ms	376 KB	Output is correct
22	Correct	2 ms	372 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	3 ms	376 KB	Output is correct
25	Correct	3 ms	376 KB	Output is correct
26	Correct	3 ms	376 KB	Output is correct
27	Correct	3 ms	376 KB	Output is correct
28	Correct	3 ms	376 KB	Output is correct
29	Correct	3 ms	376 KB	Output is correct
30	Correct	3 ms	376 KB	Output is correct
31	Correct	14 ms	504 KB	Output is correct
32	Correct	8 ms	504 KB	Output is correct
33	Correct	8 ms	476 KB	Output is correct
34	Correct	8 ms	496 KB	Output is correct
35	Correct	8 ms	504 KB	Output is correct
36	Correct	8 ms	504 KB	Output is correct
37	Correct	7 ms	504 KB	Output is correct
38	Correct	6 ms	376 KB	Output is correct
39	Correct	8 ms	504 KB	Output is correct
40	Correct	8 ms	504 KB	Output is correct
41	Correct	8 ms	504 KB	Output is correct
42	Correct	8 ms	504 KB	Output is correct
43	Correct	8 ms	504 KB	Output is correct
44	Correct	8 ms	504 KB	Output is correct
45	Correct	8 ms	504 KB	Output is correct

Subtask #4
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	380 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	376 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	380 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	2 ms	376 KB	Output is correct
17	Correct	3 ms	376 KB	Output is correct
18	Correct	3 ms	376 KB	Output is correct
19	Correct	2 ms	380 KB	Output is correct
20	Correct	3 ms	376 KB	Output is correct
21	Correct	3 ms	376 KB	Output is correct
22	Correct	2 ms	372 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	3 ms	376 KB	Output is correct
25	Correct	3 ms	376 KB	Output is correct
26	Correct	3 ms	376 KB	Output is correct
27	Correct	3 ms	376 KB	Output is correct
28	Correct	3 ms	376 KB	Output is correct
29	Correct	3 ms	376 KB	Output is correct
30	Correct	3 ms	376 KB	Output is correct
31	Correct	14 ms	504 KB	Output is correct
32	Correct	8 ms	504 KB	Output is correct
33	Correct	8 ms	476 KB	Output is correct
34	Correct	8 ms	496 KB	Output is correct
35	Correct	8 ms	504 KB	Output is correct
36	Correct	8 ms	504 KB	Output is correct
37	Correct	7 ms	504 KB	Output is correct
38	Correct	6 ms	376 KB	Output is correct
39	Correct	8 ms	504 KB	Output is correct
40	Correct	8 ms	504 KB	Output is correct
41	Correct	8 ms	504 KB	Output is correct
42	Correct	8 ms	504 KB	Output is correct
43	Correct	8 ms	504 KB	Output is correct
44	Correct	8 ms	504 KB	Output is correct
45	Correct	8 ms	504 KB	Output is correct
46	Correct	363 ms	4904 KB	Output is correct
47	Correct	382 ms	4960 KB	Output is correct
48	Correct	377 ms	4992 KB	Output is correct
49	Correct	375 ms	4984 KB	Output is correct
50	Correct	375 ms	5112 KB	Output is correct
51	Correct	380 ms	5136 KB	Output is correct
52	Correct	166 ms	2808 KB	Output is correct
53	Correct	90 ms	1912 KB	Output is correct
54	Correct	371 ms	4984 KB	Output is correct
55	Correct	377 ms	5112 KB	Output is correct
56	Correct	373 ms	5068 KB	Output is correct
57	Correct	385 ms	4984 KB	Output is correct
58	Correct	377 ms	5004 KB	Output is correct
59	Correct	372 ms	4988 KB	Output is correct
60	Correct	374 ms	4992 KB	Output is correct

Subtask #5
0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	380 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	376 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	380 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	2 ms	376 KB	Output is correct
17	Correct	3 ms	376 KB	Output is correct
18	Correct	3 ms	376 KB	Output is correct
19	Correct	2 ms	380 KB	Output is correct
20	Correct	3 ms	376 KB	Output is correct
21	Correct	3 ms	376 KB	Output is correct
22	Correct	2 ms	372 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	3 ms	376 KB	Output is correct
25	Correct	3 ms	376 KB	Output is correct
26	Correct	3 ms	376 KB	Output is correct
27	Correct	3 ms	376 KB	Output is correct
28	Correct	3 ms	376 KB	Output is correct
29	Correct	3 ms	376 KB	Output is correct
30	Correct	3 ms	376 KB	Output is correct
31	Correct	14 ms	504 KB	Output is correct
32	Correct	8 ms	504 KB	Output is correct
33	Correct	8 ms	476 KB	Output is correct
34	Correct	8 ms	496 KB	Output is correct
35	Correct	8 ms	504 KB	Output is correct
36	Correct	8 ms	504 KB	Output is correct
37	Correct	7 ms	504 KB	Output is correct
38	Correct	6 ms	376 KB	Output is correct
39	Correct	8 ms	504 KB	Output is correct
40	Correct	8 ms	504 KB	Output is correct
41	Correct	8 ms	504 KB	Output is correct
42	Correct	8 ms	504 KB	Output is correct
43	Correct	8 ms	504 KB	Output is correct
44	Correct	8 ms	504 KB	Output is correct
45	Correct	8 ms	504 KB	Output is correct
46	Correct	363 ms	4904 KB	Output is correct
47	Correct	382 ms	4960 KB	Output is correct
48	Correct	377 ms	4992 KB	Output is correct
49	Correct	375 ms	4984 KB	Output is correct
50	Correct	375 ms	5112 KB	Output is correct
51	Correct	380 ms	5136 KB	Output is correct
52	Correct	166 ms	2808 KB	Output is correct
53	Correct	90 ms	1912 KB	Output is correct
54	Correct	371 ms	4984 KB	Output is correct
55	Correct	377 ms	5112 KB	Output is correct
56	Correct	373 ms	5068 KB	Output is correct
57	Correct	385 ms	4984 KB	Output is correct
58	Correct	377 ms	5004 KB	Output is correct
59	Correct	372 ms	4988 KB	Output is correct
60	Correct	374 ms	4992 KB	Output is correct
61	Execution timed out	1542 ms	15460 KB	Time limit exceeded
62	Halted	0 ms	0 KB	-

답안 #173578

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 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
0 / 27.0