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답안 #173596

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
173596 2020-01-04T16:55:42 Z juggernaut Bigger segments (IZhO19_segments) C++14
100 / 100
 301 ms 94676 KB 
//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,sp[500001][20],logs[500001],j;
pair<int,int>dp[500001];
int get(int l,int r){
    int len=logs[r-l+1];
    return min(sp[l][len],sp[r-(1ll<<len)+1][len]);
}
main(){
    for(i=2;i<500001;i++)logs[i]=logs[i>>1]+1;
    for(i=1;i<500001;i++)
        for(j=0;j<20;j++)sp[i][j]=1e15;
    scanf("%lld",&n);
    for(i=1;i<=n;i++){
        scanf("%lld",&pref[i]);
        pref[i]+=pref[i-1];
    }
    for(i=1;i<=n;i++){
        l=0,r=i-1;
        while(l<r){
            m=(l+r+1)>>1;
            if(pref[i]>=get(m,i-1))l=m;
            else r=m-1;
        }
        dp[i]={dp[l].fr+1,pref[i]-pref[l]};
        j=1;
        sp[i][0]=dp[i].sc+pref[i];
        while(i-(1ll<<j)+1>=0){
            sp[i-(1ll<<j)+1][j]=min(sp[i-(1ll<<(j-1))+1][j-1],sp[i-(1ll<<j)+1][j-1]);
            j++;
        }
    }
    printf("%lld",dp[n].fr);
}

Compilation message

segments.cpp:13:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^
segments.cpp: In function 'int main()':
segments.cpp:17:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld",&n);
     ~~~~~^~~~~~~~~~~
segments.cpp:19:14: 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 69 ms 82552 KB Output is correct
2 Correct 68 ms 82556 KB Output is correct
3 Correct 68 ms 82556 KB Output is correct
4 Correct 68 ms 82552 KB Output is correct
5 Correct 69 ms 82652 KB Output is correct
6 Correct 68 ms 82552 KB Output is correct
7 Correct 68 ms 82652 KB Output is correct
8 Correct 68 ms 82524 KB Output is correct
9 Correct 69 ms 82552 KB Output is correct
10 Correct 69 ms 82556 KB Output is correct
11 Correct 68 ms 82552 KB Output is correct
12 Correct 69 ms 82552 KB Output is correct
13 Correct 67 ms 82484 KB Output is correct
14 Correct 68 ms 82552 KB Output is correct
15 Correct 69 ms 82552 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 82552 KB Output is correct
2 Correct 68 ms 82556 KB Output is correct
3 Correct 68 ms 82556 KB Output is correct
4 Correct 68 ms 82552 KB Output is correct
5 Correct 69 ms 82652 KB Output is correct
6 Correct 68 ms 82552 KB Output is correct
7 Correct 68 ms 82652 KB Output is correct
8 Correct 68 ms 82524 KB Output is correct
9 Correct 69 ms 82552 KB Output is correct
10 Correct 69 ms 82556 KB Output is correct
11 Correct 68 ms 82552 KB Output is correct
12 Correct 69 ms 82552 KB Output is correct
13 Correct 67 ms 82484 KB Output is correct
14 Correct 68 ms 82552 KB Output is correct
15 Correct 69 ms 82552 KB Output is correct
16 Correct 68 ms 82552 KB Output is correct
17 Correct 69 ms 82552 KB Output is correct
18 Correct 68 ms 82552 KB Output is correct
19 Correct 70 ms 82528 KB Output is correct
20 Correct 68 ms 82552 KB Output is correct
21 Correct 68 ms 82680 KB Output is correct
22 Correct 68 ms 82680 KB Output is correct
23 Correct 68 ms 82592 KB Output is correct
24 Correct 72 ms 82564 KB Output is correct
25 Correct 68 ms 82552 KB Output is correct
26 Correct 68 ms 82552 KB Output is correct
27 Correct 69 ms 82612 KB Output is correct
28 Correct 69 ms 82552 KB Output is correct
29 Correct 68 ms 82552 KB Output is correct
30 Correct 69 ms 82552 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 82552 KB Output is correct
2 Correct 68 ms 82556 KB Output is correct
3 Correct 68 ms 82556 KB Output is correct
4 Correct 68 ms 82552 KB Output is correct
5 Correct 69 ms 82652 KB Output is correct
6 Correct 68 ms 82552 KB Output is correct
7 Correct 68 ms 82652 KB Output is correct
8 Correct 68 ms 82524 KB Output is correct
9 Correct 69 ms 82552 KB Output is correct
10 Correct 69 ms 82556 KB Output is correct
11 Correct 68 ms 82552 KB Output is correct
12 Correct 69 ms 82552 KB Output is correct
13 Correct 67 ms 82484 KB Output is correct
14 Correct 68 ms 82552 KB Output is correct
15 Correct 69 ms 82552 KB Output is correct
16 Correct 68 ms 82552 KB Output is correct
17 Correct 69 ms 82552 KB Output is correct
18 Correct 68 ms 82552 KB Output is correct
19 Correct 70 ms 82528 KB Output is correct
20 Correct 68 ms 82552 KB Output is correct
21 Correct 68 ms 82680 KB Output is correct
22 Correct 68 ms 82680 KB Output is correct
23 Correct 68 ms 82592 KB Output is correct
24 Correct 72 ms 82564 KB Output is correct
25 Correct 68 ms 82552 KB Output is correct
26 Correct 68 ms 82552 KB Output is correct
27 Correct 69 ms 82612 KB Output is correct
28 Correct 69 ms 82552 KB Output is correct
29 Correct 68 ms 82552 KB Output is correct
30 Correct 69 ms 82552 KB Output is correct
31 Correct 69 ms 82536 KB Output is correct
32 Correct 69 ms 82592 KB Output is correct
33 Correct 79 ms 82600 KB Output is correct
34 Correct 80 ms 82552 KB Output is correct
35 Correct 69 ms 82680 KB Output is correct
36 Correct 69 ms 82552 KB Output is correct
37 Correct 70 ms 82552 KB Output is correct
38 Correct 68 ms 82552 KB Output is correct
39 Correct 69 ms 82524 KB Output is correct
40 Correct 68 ms 82556 KB Output is correct
41 Correct 69 ms 82588 KB Output is correct
42 Correct 69 ms 82680 KB Output is correct
43 Correct 68 ms 82552 KB Output is correct
44 Correct 69 ms 82612 KB Output is correct
45 Correct 68 ms 82552 KB Output is correct

Subtask #4
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 82552 KB Output is correct
2 Correct 68 ms 82556 KB Output is correct
3 Correct 68 ms 82556 KB Output is correct
4 Correct 68 ms 82552 KB Output is correct
5 Correct 69 ms 82652 KB Output is correct
6 Correct 68 ms 82552 KB Output is correct
7 Correct 68 ms 82652 KB Output is correct
8 Correct 68 ms 82524 KB Output is correct
9 Correct 69 ms 82552 KB Output is correct
10 Correct 69 ms 82556 KB Output is correct
11 Correct 68 ms 82552 KB Output is correct
12 Correct 69 ms 82552 KB Output is correct
13 Correct 67 ms 82484 KB Output is correct
14 Correct 68 ms 82552 KB Output is correct
15 Correct 69 ms 82552 KB Output is correct
16 Correct 68 ms 82552 KB Output is correct
17 Correct 69 ms 82552 KB Output is correct
18 Correct 68 ms 82552 KB Output is correct
19 Correct 70 ms 82528 KB Output is correct
20 Correct 68 ms 82552 KB Output is correct
21 Correct 68 ms 82680 KB Output is correct
22 Correct 68 ms 82680 KB Output is correct
23 Correct 68 ms 82592 KB Output is correct
24 Correct 72 ms 82564 KB Output is correct
25 Correct 68 ms 82552 KB Output is correct
26 Correct 68 ms 82552 KB Output is correct
27 Correct 69 ms 82612 KB Output is correct
28 Correct 69 ms 82552 KB Output is correct
29 Correct 68 ms 82552 KB Output is correct
30 Correct 69 ms 82552 KB Output is correct
31 Correct 69 ms 82536 KB Output is correct
32 Correct 69 ms 82592 KB Output is correct
33 Correct 79 ms 82600 KB Output is correct
34 Correct 80 ms 82552 KB Output is correct
35 Correct 69 ms 82680 KB Output is correct
36 Correct 69 ms 82552 KB Output is correct
37 Correct 70 ms 82552 KB Output is correct
38 Correct 68 ms 82552 KB Output is correct
39 Correct 69 ms 82524 KB Output is correct
40 Correct 68 ms 82556 KB Output is correct
41 Correct 69 ms 82588 KB Output is correct
42 Correct 69 ms 82680 KB Output is correct
43 Correct 68 ms 82552 KB Output is correct
44 Correct 69 ms 82612 KB Output is correct
45 Correct 68 ms 82552 KB Output is correct
46 Correct 94 ms 84932 KB Output is correct
47 Correct 99 ms 84856 KB Output is correct
48 Correct 100 ms 84856 KB Output is correct
49 Correct 103 ms 84828 KB Output is correct
50 Correct 102 ms 84984 KB Output is correct
51 Correct 104 ms 84856 KB Output is correct
52 Correct 86 ms 83704 KB Output is correct
53 Correct 78 ms 83192 KB Output is correct
54 Correct 97 ms 84884 KB Output is correct
55 Correct 100 ms 84856 KB Output is correct
56 Correct 96 ms 84984 KB Output is correct
57 Correct 98 ms 84856 KB Output is correct
58 Correct 97 ms 84864 KB Output is correct
59 Correct 97 ms 84856 KB Output is correct
60 Correct 98 ms 84856 KB Output is correct

Subtask #5
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 82552 KB Output is correct
2 Correct 68 ms 82556 KB Output is correct
3 Correct 68 ms 82556 KB Output is correct
4 Correct 68 ms 82552 KB Output is correct
5 Correct 69 ms 82652 KB Output is correct
6 Correct 68 ms 82552 KB Output is correct
7 Correct 68 ms 82652 KB Output is correct
8 Correct 68 ms 82524 KB Output is correct
9 Correct 69 ms 82552 KB Output is correct
10 Correct 69 ms 82556 KB Output is correct
11 Correct 68 ms 82552 KB Output is correct
12 Correct 69 ms 82552 KB Output is correct
13 Correct 67 ms 82484 KB Output is correct
14 Correct 68 ms 82552 KB Output is correct
15 Correct 69 ms 82552 KB Output is correct
16 Correct 68 ms 82552 KB Output is correct
17 Correct 69 ms 82552 KB Output is correct
18 Correct 68 ms 82552 KB Output is correct
19 Correct 70 ms 82528 KB Output is correct
20 Correct 68 ms 82552 KB Output is correct
21 Correct 68 ms 82680 KB Output is correct
22 Correct 68 ms 82680 KB Output is correct
23 Correct 68 ms 82592 KB Output is correct
24 Correct 72 ms 82564 KB Output is correct
25 Correct 68 ms 82552 KB Output is correct
26 Correct 68 ms 82552 KB Output is correct
27 Correct 69 ms 82612 KB Output is correct
28 Correct 69 ms 82552 KB Output is correct
29 Correct 68 ms 82552 KB Output is correct
30 Correct 69 ms 82552 KB Output is correct
31 Correct 69 ms 82536 KB Output is correct
32 Correct 69 ms 82592 KB Output is correct
33 Correct 79 ms 82600 KB Output is correct
34 Correct 80 ms 82552 KB Output is correct
35 Correct 69 ms 82680 KB Output is correct
36 Correct 69 ms 82552 KB Output is correct
37 Correct 70 ms 82552 KB Output is correct
38 Correct 68 ms 82552 KB Output is correct
39 Correct 69 ms 82524 KB Output is correct
40 Correct 68 ms 82556 KB Output is correct
41 Correct 69 ms 82588 KB Output is correct
42 Correct 69 ms 82680 KB Output is correct
43 Correct 68 ms 82552 KB Output is correct
44 Correct 69 ms 82612 KB Output is correct
45 Correct 68 ms 82552 KB Output is correct
46 Correct 94 ms 84932 KB Output is correct
47 Correct 99 ms 84856 KB Output is correct
48 Correct 100 ms 84856 KB Output is correct
49 Correct 103 ms 84828 KB Output is correct
50 Correct 102 ms 84984 KB Output is correct
51 Correct 104 ms 84856 KB Output is correct
52 Correct 86 ms 83704 KB Output is correct
53 Correct 78 ms 83192 KB Output is correct
54 Correct 97 ms 84884 KB Output is correct
55 Correct 100 ms 84856 KB Output is correct
56 Correct 96 ms 84984 KB Output is correct
57 Correct 98 ms 84856 KB Output is correct
58 Correct 97 ms 84864 KB Output is correct
59 Correct 97 ms 84856 KB Output is correct
60 Correct 98 ms 84856 KB Output is correct
61 Correct 255 ms 94284 KB Output is correct
62 Correct 286 ms 94540 KB Output is correct
63 Correct 290 ms 94588 KB Output is correct
64 Correct 285 ms 94588 KB Output is correct
65 Correct 275 ms 94568 KB Output is correct
66 Correct 301 ms 94532 KB Output is correct
67 Correct 254 ms 92104 KB Output is correct
68 Correct 147 ms 87416 KB Output is correct
69 Correct 260 ms 94632 KB Output is correct
70 Correct 284 ms 94500 KB Output is correct
71 Correct 251 ms 94540 KB Output is correct
72 Correct 271 ms 94492 KB Output is correct
73 Correct 266 ms 94584 KB Output is correct
74 Correct 262 ms 94456 KB Output is correct
75 Correct 272 ms 94676 KB Output is correct