oj.uz

Submission #626375

# Submission time Handle Problem Language Result Execution time Memory
626375 2022-08-11T12:11:33 Z whynotshadow Radio Towers (IOI22_towers) C++17
15 / 100
 4000 ms 2984 KB 
#include "towers.h"
#include <bits/stdc++.h>
//#include <cassert>
//#include <cstdio>
#define ll int
//#include <vector>
using namespace std;
vector<ll>v;
const ll N=1e5+9;
const ll INF=1e9;
ll tr[4*N],sz,szz,k,fll;
void build(ll x, ll l_x, ll r_x){
    if(l_x==r_x) tr[x]=v[l_x-1];
    else{
        ll mid=(l_x+r_x)>>1;
        build(x<<1,l_x,mid);
        build(x<<1|1,mid+1,r_x);
        tr[x]=max(tr[x<<1],tr[x<<1|1]);
    }
}
ll GET(ll x, ll l_x, ll r_x, ll l, ll r){
    if(l_x>r || l>r_x) return -INF;
    if(l<=l_x && r_x<=r) return tr[x];
    ll mid=(l_x+r_x)>>1;
    return max(GET(x<<1,l_x,mid,l,r),GET(x<<1|1,mid+1,r_x,l,r));
}
void init(int N, std::vector<int> H) {
    for(auto to:H){
        v.push_back(to);
    }
    k=0,fll=0;
    for(int i=1; i<N; i++){
        if(v[i]>v[i-1]) szz=i;
        else fll=1;
        if(fll==1 && v[i-1]<=v[i]) k=1;
    }
    if(k==1){
        sz=1ll;
        while(sz<N) sz<<=1;
        build(1ll,1ll,sz);
    }
}

int max_towers(int L, int R, int D) {
    ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
    if(k==0){
        if(L<=szz && szz<=R && v[L]<=v[szz]-D && v[R]<=v[szz]-D) return 2;
        return 1;
    }
    vector<pair<ll,ll>>cur,anss;
    for(int i=L; i<=R; i++){
        cur.push_back(make_pair(v[i],i));
    }
    sort(cur.begin(),cur.end());
    for(auto [to,it]:cur){
        bool fl=0;
        for(auto [to2,it2]:anss){
            ll res=GET(1,1,sz,min(it,it2)+2,max(it,it2))-D;
            if(res>=to && res>=to2 && abs(it-it2)!=1) fl=0;
            else{
                fl=1;
                break;
            }
        }
        if(fl==0) anss.push_back(make_pair(to,it));
    }
    return anss.size();
//    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 516 ms 1104 KB Output is correct
2 Correct 1093 ms 1836 KB Output is correct
3 Correct 813 ms 1704 KB Output is correct
4 Correct 1012 ms 1704 KB Output is correct
5 Correct 861 ms 1692 KB Output is correct
6 Correct 1083 ms 1692 KB Output is correct
7 Correct 721 ms 1700 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 17 ms 308 KB Output is correct
3 Correct 3 ms 336 KB Output is correct
4 Correct 11 ms 380 KB Output is correct
5 Correct 5 ms 336 KB Output is correct
6 Correct 4 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 2 ms 336 KB Output is correct
16 Correct 67 ms 336 KB Output is correct
17 Correct 10 ms 380 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 81 ms 372 KB Output is correct
21 Correct 117 ms 336 KB Output is correct
22 Correct 118 ms 380 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 2 ms 308 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 8 ms 336 KB Output is correct
27 Correct 35 ms 336 KB Output is correct
28 Correct 29 ms 336 KB Output is correct
29 Correct 42 ms 376 KB Output is correct
30 Correct 11 ms 396 KB Output is correct
31 Correct 11 ms 400 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 2 ms 336 KB Output is correct

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 17 ms 308 KB Output is correct
3 Correct 3 ms 336 KB Output is correct
4 Correct 11 ms 380 KB Output is correct
5 Correct 5 ms 336 KB Output is correct
6 Correct 4 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 2 ms 336 KB Output is correct
16 Correct 67 ms 336 KB Output is correct
17 Correct 10 ms 380 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 81 ms 372 KB Output is correct
21 Correct 117 ms 336 KB Output is correct
22 Correct 118 ms 380 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 2 ms 308 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 8 ms 336 KB Output is correct
27 Correct 35 ms 336 KB Output is correct
28 Correct 29 ms 336 KB Output is correct
29 Correct 42 ms 376 KB Output is correct
30 Correct 11 ms 396 KB Output is correct
31 Correct 11 ms 400 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 2 ms 336 KB Output is correct
36 Execution timed out 4043 ms 1832 KB Time limit exceeded
37 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4073 ms 2984 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4019 ms 1160 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 17 ms 308 KB Output is correct
3 Correct 3 ms 336 KB Output is correct
4 Correct 11 ms 380 KB Output is correct
5 Correct 5 ms 336 KB Output is correct
6 Correct 4 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 2 ms 336 KB Output is correct
16 Correct 67 ms 336 KB Output is correct
17 Correct 10 ms 380 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 81 ms 372 KB Output is correct
21 Correct 117 ms 336 KB Output is correct
22 Correct 118 ms 380 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 2 ms 308 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 8 ms 336 KB Output is correct
27 Correct 35 ms 336 KB Output is correct
28 Correct 29 ms 336 KB Output is correct
29 Correct 42 ms 376 KB Output is correct
30 Correct 11 ms 396 KB Output is correct
31 Correct 11 ms 400 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 2 ms 336 KB Output is correct
36 Execution timed out 4043 ms 1832 KB Time limit exceeded
37 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 516 ms 1104 KB Output is correct
2 Correct 1093 ms 1836 KB Output is correct
3 Correct 813 ms 1704 KB Output is correct
4 Correct 1012 ms 1704 KB Output is correct
5 Correct 861 ms 1692 KB Output is correct
6 Correct 1083 ms 1692 KB Output is correct
7 Correct 721 ms 1700 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 17 ms 308 KB Output is correct
13 Correct 3 ms 336 KB Output is correct
14 Correct 11 ms 380 KB Output is correct
15 Correct 5 ms 336 KB Output is correct
16 Correct 4 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 256 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 2 ms 336 KB Output is correct
26 Correct 67 ms 336 KB Output is correct
27 Correct 10 ms 380 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 81 ms 372 KB Output is correct
31 Correct 117 ms 336 KB Output is correct
32 Correct 118 ms 380 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 2 ms 308 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 8 ms 336 KB Output is correct
37 Correct 35 ms 336 KB Output is correct
38 Correct 29 ms 336 KB Output is correct
39 Correct 42 ms 376 KB Output is correct
40 Correct 11 ms 396 KB Output is correct
41 Correct 11 ms 400 KB Output is correct
42 Correct 1 ms 336 KB Output is correct
43 Correct 1 ms 336 KB Output is correct
44 Correct 1 ms 336 KB Output is correct
45 Correct 2 ms 336 KB Output is correct
46 Execution timed out 4043 ms 1832 KB Time limit exceeded
47 Halted 0 ms 0 KB -