oj.uz

Submission #209422

# Submission time Handle Problem Language Result Execution time Memory
209422 2020-03-14T07:32:49 Z model_code Solar Storm (NOI20_solarstorm) C++17
100 / 100
 394 ms 81528 KB 
#include <bits/stdc++.h>
using namespace std;
constexpr int MAXN=1000000;
long long d[MAXN+1], v[MAXN+1];
long long next_k[MAXN];
int children[MAXN];
int childoff[MAXN+2];
long long ans[MAXN];
int ancestors[MAXN];
int n;
unsigned s;
void dfs(int index, int* ancestors_end){
    if(ancestors_end-ancestors<s)ans[index]=n;
    else ans[index]=*(ancestors_end-s);
    *ancestors_end++=index;
    for(int i=childoff[index];i!=childoff[index+1];++i){
        dfs(children[i], ancestors_end);
    }
    --ancestors_end;
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    long long k;
    cin>>n>>s>>k;
    assert(n<=MAXN);
    d[0]=0;
    for(int i=1;i<n;++i){
        int tmp;
        cin>>tmp;
        d[i]=d[i-1]+tmp;
    }
    d[n]=numeric_limits<long long>::max();
    v[0]=0;
    for(int i=0;i<n;++i){
        int tmp;
        cin>>tmp;
        v[i+1]=v[i]+tmp;
    }
    int j=0;
    for(int i=0;i<n;++i){
        while(d[j+1]-d[i]<=k)++j;
        next_k[i]=j;
    }
    for(int i=0;i<n;++i){
        childoff[next_k[next_k[i]]+1]++;
    }
    {
        int childstor=0;
        for(int i=0;i<=n;++i){
            const int tmp=childoff[i];
            childoff[i]=childstor;
            childstor+=tmp;
        }
    }
    for(int i=0;i<n;++i){
        children[childoff[next_k[next_k[i]]+1]++]=i;
    }
    move_backward(childoff,childoff+n+1,childoff+n+2);
    childoff[0]=0;
    for(auto i=childoff[n];i!=childoff[n+1];++i) dfs(children[i], ancestors);
    int best_index=0;
    for(int i=1;i<n;++i){
        // change '>' to '>=' and the answer should also be correct
        if(v[ans[i]]-v[i]>v[ans[best_index]]-v[best_index])best_index=i;
    }
    unsigned counter=0;
    for(int tmp=best_index;tmp!=n&&counter!=s;tmp=next_k[next_k[tmp]]+1,++counter);
    cout<<counter<<'\n';
    best_index=next_k[best_index];
    cout<<best_index+1;
    while(--counter>0){
        best_index=next_k[next_k[best_index]+1];
        cout<<' '<<best_index+1;
    }
    cout<<'\n';
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 7 ms 1016 KB Output is correct
3 Correct 7 ms 1144 KB Output is correct
4 Correct 6 ms 760 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 7 ms 632 KB Output is correct
7 Correct 7 ms 760 KB Output is correct
8 Correct 8 ms 764 KB Output is correct
9 Correct 7 ms 632 KB Output is correct
10 Correct 7 ms 888 KB Output is correct
11 Correct 8 ms 760 KB Output is correct
12 Correct 6 ms 632 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 193 ms 33912 KB Output is correct
2 Correct 132 ms 21752 KB Output is correct
3 Correct 128 ms 23288 KB Output is correct
4 Correct 185 ms 25336 KB Output is correct
5 Correct 203 ms 29688 KB Output is correct
6 Correct 245 ms 39544 KB Output is correct
7 Correct 190 ms 33892 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 7 ms 1016 KB Output is correct
3 Correct 7 ms 1144 KB Output is correct
4 Correct 6 ms 760 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 7 ms 632 KB Output is correct
7 Correct 7 ms 760 KB Output is correct
8 Correct 8 ms 764 KB Output is correct
9 Correct 7 ms 632 KB Output is correct
10 Correct 7 ms 888 KB Output is correct
11 Correct 8 ms 760 KB Output is correct
12 Correct 6 ms 632 KB Output is correct
13 Correct 193 ms 33912 KB Output is correct
14 Correct 132 ms 21752 KB Output is correct
15 Correct 128 ms 23288 KB Output is correct
16 Correct 185 ms 25336 KB Output is correct
17 Correct 203 ms 29688 KB Output is correct
18 Correct 245 ms 39544 KB Output is correct
19 Correct 190 ms 33892 KB Output is correct
20 Correct 154 ms 21752 KB Output is correct
21 Correct 222 ms 50044 KB Output is correct
22 Correct 254 ms 59248 KB Output is correct
23 Correct 231 ms 32344 KB Output is correct
24 Correct 218 ms 29176 KB Output is correct
25 Correct 239 ms 29176 KB Output is correct
26 Correct 179 ms 21848 KB Output is correct
27 Correct 213 ms 28004 KB Output is correct
28 Correct 220 ms 27692 KB Output is correct
29 Correct 302 ms 35960 KB Output is correct
30 Correct 238 ms 36988 KB Output is correct
31 Correct 215 ms 40908 KB Output is correct

Subtask #4
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 275 ms 63968 KB Output is correct
2 Correct 153 ms 37984 KB Output is correct
3 Correct 150 ms 40824 KB Output is correct
4 Correct 209 ms 58848 KB Output is correct
5 Correct 204 ms 57172 KB Output is correct
6 Correct 263 ms 60468 KB Output is correct
7 Correct 298 ms 78380 KB Output is correct

Subtask #5
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 7 ms 1016 KB Output is correct
3 Correct 7 ms 1144 KB Output is correct
4 Correct 6 ms 760 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 7 ms 632 KB Output is correct
7 Correct 7 ms 760 KB Output is correct
8 Correct 8 ms 764 KB Output is correct
9 Correct 7 ms 632 KB Output is correct
10 Correct 7 ms 888 KB Output is correct
11 Correct 8 ms 760 KB Output is correct
12 Correct 6 ms 632 KB Output is correct
13 Correct 8 ms 812 KB Output is correct
14 Correct 10 ms 632 KB Output is correct
15 Correct 7 ms 632 KB Output is correct
16 Correct 6 ms 680 KB Output is correct
17 Correct 8 ms 864 KB Output is correct
18 Correct 9 ms 1144 KB Output is correct
19 Correct 8 ms 1016 KB Output is correct
20 Correct 6 ms 888 KB Output is correct
21 Correct 8 ms 1144 KB Output is correct
22 Correct 9 ms 1144 KB Output is correct
23 Correct 9 ms 760 KB Output is correct
24 Correct 7 ms 760 KB Output is correct
25 Correct 7 ms 888 KB Output is correct
26 Correct 8 ms 1016 KB Output is correct
27 Correct 8 ms 888 KB Output is correct
28 Correct 8 ms 888 KB Output is correct
29 Correct 10 ms 892 KB Output is correct
30 Correct 7 ms 760 KB Output is correct

Subtask #6
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 7 ms 1016 KB Output is correct
3 Correct 7 ms 1144 KB Output is correct
4 Correct 6 ms 760 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 7 ms 632 KB Output is correct
7 Correct 7 ms 760 KB Output is correct
8 Correct 8 ms 764 KB Output is correct
9 Correct 7 ms 632 KB Output is correct
10 Correct 7 ms 888 KB Output is correct
11 Correct 8 ms 760 KB Output is correct
12 Correct 6 ms 632 KB Output is correct
13 Correct 193 ms 33912 KB Output is correct
14 Correct 132 ms 21752 KB Output is correct
15 Correct 128 ms 23288 KB Output is correct
16 Correct 185 ms 25336 KB Output is correct
17 Correct 203 ms 29688 KB Output is correct
18 Correct 245 ms 39544 KB Output is correct
19 Correct 190 ms 33892 KB Output is correct
20 Correct 154 ms 21752 KB Output is correct
21 Correct 222 ms 50044 KB Output is correct
22 Correct 254 ms 59248 KB Output is correct
23 Correct 231 ms 32344 KB Output is correct
24 Correct 218 ms 29176 KB Output is correct
25 Correct 239 ms 29176 KB Output is correct
26 Correct 179 ms 21848 KB Output is correct
27 Correct 213 ms 28004 KB Output is correct
28 Correct 220 ms 27692 KB Output is correct
29 Correct 302 ms 35960 KB Output is correct
30 Correct 238 ms 36988 KB Output is correct
31 Correct 215 ms 40908 KB Output is correct
32 Correct 258 ms 34428 KB Output is correct
33 Correct 211 ms 26464 KB Output is correct
34 Correct 304 ms 36276 KB Output is correct
35 Correct 178 ms 21948 KB Output is correct
36 Correct 197 ms 23620 KB Output is correct
37 Correct 196 ms 26872 KB Output is correct
38 Correct 330 ms 54624 KB Output is correct
39 Correct 233 ms 55160 KB Output is correct
40 Correct 319 ms 74720 KB Output is correct

Subtask #7
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 7 ms 1016 KB Output is correct
3 Correct 7 ms 1144 KB Output is correct
4 Correct 6 ms 760 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 7 ms 632 KB Output is correct
7 Correct 7 ms 760 KB Output is correct
8 Correct 8 ms 764 KB Output is correct
9 Correct 7 ms 632 KB Output is correct
10 Correct 7 ms 888 KB Output is correct
11 Correct 8 ms 760 KB Output is correct
12 Correct 6 ms 632 KB Output is correct
13 Correct 193 ms 33912 KB Output is correct
14 Correct 132 ms 21752 KB Output is correct
15 Correct 128 ms 23288 KB Output is correct
16 Correct 185 ms 25336 KB Output is correct
17 Correct 203 ms 29688 KB Output is correct
18 Correct 245 ms 39544 KB Output is correct
19 Correct 190 ms 33892 KB Output is correct
20 Correct 154 ms 21752 KB Output is correct
21 Correct 222 ms 50044 KB Output is correct
22 Correct 254 ms 59248 KB Output is correct
23 Correct 231 ms 32344 KB Output is correct
24 Correct 218 ms 29176 KB Output is correct
25 Correct 239 ms 29176 KB Output is correct
26 Correct 179 ms 21848 KB Output is correct
27 Correct 213 ms 28004 KB Output is correct
28 Correct 220 ms 27692 KB Output is correct
29 Correct 302 ms 35960 KB Output is correct
30 Correct 238 ms 36988 KB Output is correct
31 Correct 215 ms 40908 KB Output is correct
32 Correct 275 ms 63968 KB Output is correct
33 Correct 153 ms 37984 KB Output is correct
34 Correct 150 ms 40824 KB Output is correct
35 Correct 209 ms 58848 KB Output is correct
36 Correct 204 ms 57172 KB Output is correct
37 Correct 263 ms 60468 KB Output is correct
38 Correct 298 ms 78380 KB Output is correct
39 Correct 8 ms 812 KB Output is correct
40 Correct 10 ms 632 KB Output is correct
41 Correct 7 ms 632 KB Output is correct
42 Correct 6 ms 680 KB Output is correct
43 Correct 8 ms 864 KB Output is correct
44 Correct 9 ms 1144 KB Output is correct
45 Correct 8 ms 1016 KB Output is correct
46 Correct 6 ms 888 KB Output is correct
47 Correct 8 ms 1144 KB Output is correct
48 Correct 9 ms 1144 KB Output is correct
49 Correct 9 ms 760 KB Output is correct
50 Correct 7 ms 760 KB Output is correct
51 Correct 7 ms 888 KB Output is correct
52 Correct 8 ms 1016 KB Output is correct
53 Correct 8 ms 888 KB Output is correct
54 Correct 8 ms 888 KB Output is correct
55 Correct 10 ms 892 KB Output is correct
56 Correct 7 ms 760 KB Output is correct
57 Correct 258 ms 34428 KB Output is correct
58 Correct 211 ms 26464 KB Output is correct
59 Correct 304 ms 36276 KB Output is correct
60 Correct 178 ms 21948 KB Output is correct
61 Correct 197 ms 23620 KB Output is correct
62 Correct 196 ms 26872 KB Output is correct
63 Correct 330 ms 54624 KB Output is correct
64 Correct 233 ms 55160 KB Output is correct
65 Correct 319 ms 74720 KB Output is correct
66 Correct 177 ms 23800 KB Output is correct
67 Correct 278 ms 64084 KB Output is correct
68 Correct 219 ms 44740 KB Output is correct
69 Correct 263 ms 58720 KB Output is correct
70 Correct 185 ms 24696 KB Output is correct
71 Correct 308 ms 39160 KB Output is correct
72 Correct 312 ms 25028 KB Output is correct
73 Correct 253 ms 33456 KB Output is correct
74 Correct 153 ms 31404 KB Output is correct
75 Correct 241 ms 61688 KB Output is correct
76 Correct 195 ms 43876 KB Output is correct
77 Correct 378 ms 31096 KB Output is correct
78 Correct 171 ms 41824 KB Output is correct
79 Correct 236 ms 54240 KB Output is correct
80 Correct 290 ms 67808 KB Output is correct
81 Correct 172 ms 23776 KB Output is correct
82 Correct 252 ms 29920 KB Output is correct
83 Correct 165 ms 20112 KB Output is correct
84 Correct 165 ms 21752 KB Output is correct
85 Correct 156 ms 20428 KB Output is correct
86 Correct 275 ms 37112 KB Output is correct
87 Correct 157 ms 29688 KB Output is correct
88 Correct 278 ms 35808 KB Output is correct
89 Correct 231 ms 54520 KB Output is correct
90 Correct 206 ms 49416 KB Output is correct
91 Correct 394 ms 81528 KB Output is correct
92 Correct 311 ms 75232 KB Output is correct
93 Correct 368 ms 78328 KB Output is correct
94 Correct 392 ms 78432 KB Output is correct
95 Correct 265 ms 35192 KB Output is correct
96 Correct 210 ms 27900 KB Output is correct
97 Correct 307 ms 41212 KB Output is correct
98 Correct 204 ms 33760 KB Output is correct
99 Correct 270 ms 53936 KB Output is correct
100 Correct 256 ms 52856 KB Output is correct