oj.uz

Submission #83518

# Submission time Handle Problem Language Result Execution time Memory
83518 2018-11-08T17:06:32 Z nikolapesic2802 Long Mansion (JOI17_long_mansion) C++14
100 / 100
 482 ms 122196 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

#define ll long long
#define pb push_back

using namespace std;
using namespace __gnu_pbds;

typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> ordered_set; ///find_by_order(),order_of_key()
const int N=5*1e5+5;
vector<int> hi(N),lo(N),l(N),r(N);
bool on(int l,int r,int x){return x>=l&&x<=r;}
bool can(int l,int r,int x){return (hi[x]>=0&&on(l,r,hi[x]))||(lo[x]>=0&&on(l,r,lo[x]));}
int main()
{
    int n;
    scanf("%i",&n);
    vector<int> cor(n-1);
    for(int i=0;i<n-1;i++)
        scanf("%i",&cor[i]);
    vector<vector<int> > sobe(n);
    for(int i=0;i<n;i++)
    {
        int b;
        scanf("%i",&b);
        for(int j=0;j<b;j++)
        {
            int a;
            scanf("%i",&a);
            sobe[i].pb(a);
        }
    }
    vector<int> keys(n,-1);
    for(int i=0;i<n-1;i++)
    {
        for(auto p:sobe[i])
            keys[p]=i;
        lo[i]=keys[cor[i]];
    }
    fill(keys.begin(),keys.end(),-1);
    for(int i=n-1;i>0;i--)
    {
        for(auto p:sobe[i])
            keys[p]=i;
        hi[i-1]=keys[cor[i-1]];
    }
    for(int i=0;i<n;i++)
    {
        l[i]=r[i]=i;
        while(true)
        {
            if(l[i]>0&&can(l[i],r[i],l[i]-1))
            {
                r[i]=max(r[i],r[l[i]-1]);
                l[i]=l[l[i]-1];
            }
            else
                if(r[i]<n-1&&can(l[i],r[i],r[i]))
                    r[i]++;
                else
                    break;
        }
    }
    int q;
    scanf("%i",&q);
    for(int i=0;i<q;i++)
    {
        int x,y;
        scanf("%i %i",&x,&y);
        x--;
        y--;
        if(on(l[x],r[x],y))
            printf("YES\n");
        else
            printf("NO\n");
    }
    return 0;
}

Compilation message

long_mansion.cpp: In function 'int main()':
long_mansion.cpp:19:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%i",&n);
     ~~~~~^~~~~~~~~
long_mansion.cpp:22:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i",&cor[i]);
         ~~~~~^~~~~~~~~~~~~~
long_mansion.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i",&b);
         ~~~~~^~~~~~~~~
long_mansion.cpp:31:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%i",&a);
             ~~~~~^~~~~~~~~
long_mansion.cpp:67:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%i",&q);
     ~~~~~^~~~~~~~~
long_mansion.cpp:71:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i %i",&x,&y);
         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 8312 KB Output is correct
2 Correct 13 ms 8436 KB Output is correct
3 Correct 12 ms 8528 KB Output is correct
4 Correct 12 ms 8544 KB Output is correct
5 Correct 11 ms 8692 KB Output is correct
6 Correct 12 ms 8692 KB Output is correct
7 Correct 11 ms 8864 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 8312 KB Output is correct
2 Correct 13 ms 8436 KB Output is correct
3 Correct 12 ms 8528 KB Output is correct
4 Correct 12 ms 8544 KB Output is correct
5 Correct 11 ms 8692 KB Output is correct
6 Correct 12 ms 8692 KB Output is correct
7 Correct 11 ms 8864 KB Output is correct
8 Correct 178 ms 14676 KB Output is correct
9 Correct 176 ms 19144 KB Output is correct
10 Correct 172 ms 23844 KB Output is correct
11 Correct 163 ms 28692 KB Output is correct
12 Correct 156 ms 29168 KB Output is correct
13 Correct 148 ms 29344 KB Output is correct
14 Correct 148 ms 29344 KB Output is correct
15 Correct 156 ms 29344 KB Output is correct
16 Correct 152 ms 29440 KB Output is correct
17 Correct 146 ms 29440 KB Output is correct
18 Correct 164 ms 29440 KB Output is correct
19 Correct 149 ms 29440 KB Output is correct
20 Correct 151 ms 29440 KB Output is correct
21 Correct 137 ms 29440 KB Output is correct
22 Correct 157 ms 29440 KB Output is correct
23 Correct 157 ms 29440 KB Output is correct
24 Correct 157 ms 29440 KB Output is correct
25 Correct 162 ms 29440 KB Output is correct
26 Correct 152 ms 29440 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 302 ms 35840 KB Output is correct
2 Correct 314 ms 35864 KB Output is correct
3 Correct 278 ms 35864 KB Output is correct
4 Correct 307 ms 35864 KB Output is correct
5 Correct 321 ms 35964 KB Output is correct
6 Correct 235 ms 35964 KB Output is correct
7 Correct 232 ms 35964 KB Output is correct
8 Correct 273 ms 35964 KB Output is correct
9 Correct 220 ms 35964 KB Output is correct
10 Correct 216 ms 35964 KB Output is correct
11 Correct 221 ms 35964 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 8312 KB Output is correct
2 Correct 13 ms 8436 KB Output is correct
3 Correct 12 ms 8528 KB Output is correct
4 Correct 12 ms 8544 KB Output is correct
5 Correct 11 ms 8692 KB Output is correct
6 Correct 12 ms 8692 KB Output is correct
7 Correct 11 ms 8864 KB Output is correct
8 Correct 178 ms 14676 KB Output is correct
9 Correct 176 ms 19144 KB Output is correct
10 Correct 172 ms 23844 KB Output is correct
11 Correct 163 ms 28692 KB Output is correct
12 Correct 156 ms 29168 KB Output is correct
13 Correct 148 ms 29344 KB Output is correct
14 Correct 148 ms 29344 KB Output is correct
15 Correct 156 ms 29344 KB Output is correct
16 Correct 152 ms 29440 KB Output is correct
17 Correct 146 ms 29440 KB Output is correct
18 Correct 164 ms 29440 KB Output is correct
19 Correct 149 ms 29440 KB Output is correct
20 Correct 151 ms 29440 KB Output is correct
21 Correct 137 ms 29440 KB Output is correct
22 Correct 157 ms 29440 KB Output is correct
23 Correct 157 ms 29440 KB Output is correct
24 Correct 157 ms 29440 KB Output is correct
25 Correct 162 ms 29440 KB Output is correct
26 Correct 152 ms 29440 KB Output is correct
27 Correct 302 ms 35840 KB Output is correct
28 Correct 314 ms 35864 KB Output is correct
29 Correct 278 ms 35864 KB Output is correct
30 Correct 307 ms 35864 KB Output is correct
31 Correct 321 ms 35964 KB Output is correct
32 Correct 235 ms 35964 KB Output is correct
33 Correct 232 ms 35964 KB Output is correct
34 Correct 273 ms 35964 KB Output is correct
35 Correct 220 ms 35964 KB Output is correct
36 Correct 216 ms 35964 KB Output is correct
37 Correct 221 ms 35964 KB Output is correct
38 Correct 425 ms 53944 KB Output is correct
39 Correct 456 ms 60288 KB Output is correct
40 Correct 409 ms 60288 KB Output is correct
41 Correct 482 ms 60608 KB Output is correct
42 Correct 249 ms 60608 KB Output is correct
43 Correct 234 ms 60608 KB Output is correct
44 Correct 344 ms 60608 KB Output is correct
45 Correct 342 ms 60608 KB Output is correct
46 Correct 333 ms 60608 KB Output is correct
47 Correct 244 ms 60608 KB Output is correct
48 Correct 280 ms 60608 KB Output is correct
49 Correct 357 ms 60608 KB Output is correct
50 Correct 326 ms 61912 KB Output is correct
51 Correct 334 ms 72356 KB Output is correct
52 Correct 318 ms 81464 KB Output is correct
53 Correct 371 ms 98408 KB Output is correct
54 Correct 465 ms 117404 KB Output is correct
55 Correct 357 ms 122196 KB Output is correct