oj.uz

Submission #638921

# Submission time Handle Problem Language Result Execution time Memory
638921 2022-09-08T01:25:18 Z pigeonbat Radio Towers (IOI22_towers) C++17
17 / 100
 1205 ms 7436 KB 
#include "towers.h"
#include <bits/stdc++.h>
using namespace std;
struct pi{
    int h,x,y;
};
bool operator<(const pi &a, const pi &b){
    return a.h>b.h;
}
priority_queue<pi> pq;
set<int> st;
map<int,int> re;

void init(int N, std::vector<int> H) {
    bool ch = false;
    if(N==1) st.insert(0);
    for(int i=1;i<N;i++){
        if(!ch&&H[i-1]<H[i]){
            st.insert(i-1);
            ch = true;
        }
        else if(ch&&H[i-1]>H[i]){
            st.insert(i-1);
            ch = false;
        }
    }
    if(!ch) st.insert(N-1);
    //for(auto x:st) printf("%d\n",x);
    auto it = st.begin(), nit = it;
    nit++;
    while(nit!=st.end()){
        pq.push({abs(H[*nit]-H[*it]),*it,*nit});
        it++; nit++;
    }
    int d=0;
    while(!pq.empty()){
        int h=pq.top().h,x=pq.top().x,y=pq.top().y; pq.pop();
        if(!st.count(x)||!st.count(y)) continue;
        //printf("%d %d %d %d\n",h,x,y,(int)st.size());
        if(h!=d){
            re[d+1]=((int)st.size()-1)/2+1;
            //printf("%d %d\n",d,re[d+1]);
            d=h;
        }
        st.erase(x); st.erase(y);
        it=st.lower_bound(x); nit=st.upper_bound(y);
        if(it!=st.begin()&&nit!=st.end()){
            it--;
            pq.push({abs(H[*nit]-H[*it]),*it,*nit});
        }
    }
    re[d+1]=1;
}

int max_towers(int L, int R, int D) {
    auto it = re.upper_bound(D);
    it--;
    return it->second;
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 500 ms 680 KB 1st 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 1 ms 208 KB 1st lines differ - on the 1st token, expected: '13', found: '131'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 208 KB 1st lines differ - on the 1st token, expected: '13', found: '131'
2 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 777 ms 5796 KB 1st lines differ - on the 1st token, expected: '11903', found: '33010'
2 Halted 0 ms 0 KB -

Subtask #5
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 285 ms 1560 KB Output is correct
2 Correct 888 ms 5788 KB Output is correct
3 Correct 763 ms 5788 KB Output is correct
4 Correct 1040 ms 7436 KB Output is correct
5 Correct 1205 ms 7316 KB Output is correct
6 Correct 976 ms 7344 KB Output is correct
7 Correct 1130 ms 7308 KB Output is correct
8 Correct 1014 ms 1048 KB Output is correct
9 Correct 873 ms 968 KB Output is correct
10 Correct 886 ms 1060 KB Output is correct
11 Correct 701 ms 1052 KB Output is correct
12 Correct 96 ms 5828 KB Output is correct
13 Correct 141 ms 7436 KB Output is correct
14 Correct 148 ms 7320 KB Output is correct
15 Correct 11 ms 1048 KB Output is correct
16 Correct 10 ms 1056 KB Output is correct
17 Correct 83 ms 4956 KB Output is correct
18 Correct 89 ms 5824 KB Output is correct
19 Correct 97 ms 5788 KB Output is correct
20 Correct 147 ms 7344 KB Output is correct
21 Correct 149 ms 7312 KB Output is correct
22 Correct 144 ms 7376 KB Output is correct
23 Correct 145 ms 7356 KB Output is correct
24 Correct 14 ms 1064 KB Output is correct
25 Correct 17 ms 1052 KB Output is correct
26 Correct 12 ms 1056 KB Output is correct
27 Correct 11 ms 1052 KB Output is correct
28 Correct 2 ms 336 KB Output is correct
29 Correct 2 ms 336 KB Output is correct
30 Correct 2 ms 448 KB Output is correct
31 Correct 1 ms 292 KB Output is correct
32 Correct 1 ms 208 KB Output is correct
33 Correct 1 ms 356 KB Output is correct
34 Correct 1 ms 292 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 2 ms 336 KB Output is correct
37 Correct 2 ms 336 KB Output is correct
38 Correct 2 ms 336 KB Output is correct
39 Correct 2 ms 336 KB Output is correct
40 Correct 1 ms 208 KB Output is correct
41 Correct 1 ms 208 KB Output is correct
42 Correct 1 ms 208 KB Output is correct
43 Correct 1 ms 208 KB Output is correct

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 208 KB 1st lines differ - on the 1st token, expected: '13', found: '131'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 500 ms 680 KB 1st lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -