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Submission #1035106

# Submission time Handle Problem Language Result Execution time Memory
1035106 2024-07-26T04:35:16 Z irmuun Radio Towers (IOI22_towers) C++17
14 / 100
 687 ms 3160 KB 
#include<bits/stdc++.h>
#include "towers.h"

using namespace std;

#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()

struct segtree{
    vector<int>d;
    void init(int n){
        d.resize(4*n);
        build(1,0,n-1);
    }
    void build(int v,int l,int r){
        if(l==r){
            d[v]=0;
            return;
        }
        int mid=(l+r)>>1;
        build(v*2,l,mid);
        build(v*2+1,mid+1,r);
        d[v]=d[v*2]+d[v*2+1];
    }
    int query(int v,int l,int r,int L,int R){
        if(R<L||r<L||R<l) return 0;
        if(L<=l&&r<=R){
            return d[v];
        }
        int mid=(l+r)>>1;
        return query(v*2,l,mid,L,R)+query(v*2+1,mid+1,r,L,R);
    }
    void update(int v,int l,int r,int pos,int val){
        if(r<pos||pos<l) return;
        if(l==r){
            d[v]=val;
            return;
        }
        int mid=(l+r)>>1;
        update(v*2,l,mid,pos,val);
        update(v*2+1,mid+1,r,pos,val);
        d[v]=d[v*2]+d[v*2+1];
    }
};

segtree sg;

int n;
vector<int>h;
vector<pair<int,int>>v;
vector<bool>used;

void init(int N,vector<int>H){
    n=N; h=H;
    used.resize(n);
    sg.init(n);
    for(int i=1;i<n-1;i++){
        if(h[i]<h[i-1]&&h[i]<h[i+1]){
            sg.update(1,0,n-1,i,1);
        }
    }
}

int max_towers(int L,int R,int D){
    int ans=sg.query(1,0,n-1,L+1,R-1);
    if(L<R){
        if(h[L]<h[L+1]) ans++;
        if(h[R]<h[R-1]) ans++;
    }
    ans=max(ans,1);
    return ans;
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 308 ms 1880 KB 2nd lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB 1st lines differ - on the 1st token, expected: '13', found: '16'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB 1st lines differ - on the 1st token, expected: '13', found: '16'
2 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 484 ms 3160 KB Output is correct
2 Correct 629 ms 3160 KB Output is correct
3 Correct 616 ms 3160 KB Output is correct
4 Correct 650 ms 3160 KB Output is correct
5 Correct 653 ms 2988 KB Output is correct
6 Correct 608 ms 3160 KB Output is correct
7 Correct 644 ms 3160 KB Output is correct
8 Correct 635 ms 3160 KB Output is correct
9 Correct 652 ms 3160 KB Output is correct
10 Correct 687 ms 3160 KB Output is correct
11 Correct 615 ms 3160 KB Output is correct
12 Correct 611 ms 3160 KB Output is correct
13 Correct 642 ms 3160 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 12 ms 3136 KB Output is correct
18 Correct 12 ms 3160 KB Output is correct
19 Correct 12 ms 3132 KB Output is correct
20 Correct 9 ms 3160 KB Output is correct
21 Correct 9 ms 2984 KB Output is correct
22 Correct 11 ms 3160 KB Output is correct
23 Correct 12 ms 2984 KB Output is correct
24 Correct 13 ms 3160 KB Output is correct
25 Correct 9 ms 3160 KB Output is correct
26 Correct 9 ms 3160 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 1 ms 440 KB Output is correct

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 187 ms 1084 KB 1st lines differ - on the 1st token, expected: '7197', found: '8004'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB 1st lines differ - on the 1st token, expected: '13', found: '16'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 308 ms 1880 KB 2nd lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -