Submission #667085

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
667085	2022-11-30 11:13:20	tatyam	Radio Towers (IOI22_towers)	C++17	23 / 100	4019 ms	12048 KiB

towers

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#include <bits/stdc++.h>
using namespace std;
template<class T> void chmax(T& a, T b){ if(a < b) a = b; }
int N;
vector<int> H;
vector<pair<int, int>> seg;
void init(int N, vector<int> H) {
    ::N = N;
    ::H = H;
    seg.resize(N * 2);
    for(int i = 0; i < N; i++) seg[N + i] = {H[i], i};
    for(int i = N; --i; ){
        seg[i] = max(seg[i << 1], seg[i << 1 | 1]);
    }
}
int argmax(int L, int R){
    L += N;
    R += N;
    pair<int, int> ans;
    while(L < R){
        if(L & 1) chmax(ans, seg[L++]);
        if(R & 1) chmax(ans, seg[--R]);
        L >>= 1; R >>= 1;
    }
    return ans.second;
}
int max_towers(int L, int R, int D) {
 
 
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