oj.uz

Submission #626352

# Submission time Handle Problem Language Result Execution time Memory
626352 2022-08-11T12:01:36 Z whynotshadow Radio Towers (IOI22_towers) C++17
11 / 100
 4000 ms 2904 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;
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);
    }
    sz=1ll;
    while(sz<N) sz<<=1;
    build(1ll,1ll,sz);
    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]<v[i-1]) k=1;
    }
}

int max_towers(int L, int R, int D) {
    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
0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4094 ms 2528 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 16 ms 336 KB Output is correct
3 Correct 3 ms 336 KB Output is correct
4 Correct 11 ms 336 KB Output is correct
5 Correct 4 ms 364 KB Output is correct
6 Correct 2 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 0 ms 208 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 59 ms 336 KB Output is correct
17 Correct 9 ms 356 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 113 ms 360 KB Output is correct
21 Correct 125 ms 360 KB Output is correct
22 Correct 116 ms 356 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 5 ms 372 KB Output is correct
27 Correct 32 ms 336 KB Output is correct
28 Correct 21 ms 336 KB Output is correct
29 Correct 28 ms 336 KB Output is correct
30 Correct 7 ms 336 KB Output is correct
31 Correct 10 ms 336 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 0 ms 208 KB Output is correct
2 Correct 16 ms 336 KB Output is correct
3 Correct 3 ms 336 KB Output is correct
4 Correct 11 ms 336 KB Output is correct
5 Correct 4 ms 364 KB Output is correct
6 Correct 2 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 0 ms 208 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 59 ms 336 KB Output is correct
17 Correct 9 ms 356 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 113 ms 360 KB Output is correct
21 Correct 125 ms 360 KB Output is correct
22 Correct 116 ms 356 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 5 ms 372 KB Output is correct
27 Correct 32 ms 336 KB Output is correct
28 Correct 21 ms 336 KB Output is correct
29 Correct 28 ms 336 KB Output is correct
30 Correct 7 ms 336 KB Output is correct
31 Correct 10 ms 336 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 4083 ms 1740 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 4030 ms 2904 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 4061 ms 1232 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 16 ms 336 KB Output is correct
3 Correct 3 ms 336 KB Output is correct
4 Correct 11 ms 336 KB Output is correct
5 Correct 4 ms 364 KB Output is correct
6 Correct 2 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 0 ms 208 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 59 ms 336 KB Output is correct
17 Correct 9 ms 356 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 113 ms 360 KB Output is correct
21 Correct 125 ms 360 KB Output is correct
22 Correct 116 ms 356 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 5 ms 372 KB Output is correct
27 Correct 32 ms 336 KB Output is correct
28 Correct 21 ms 336 KB Output is correct
29 Correct 28 ms 336 KB Output is correct
30 Correct 7 ms 336 KB Output is correct
31 Correct 10 ms 336 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 4083 ms 1740 KB Time limit exceeded
37 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4094 ms 2528 KB Time limit exceeded
2 Halted 0 ms 0 KB -