Submission #1067081

#	Time	Username	Problem	Language	Result	Execution time	Memory
1067081		AdamGS	송신탑 (IOI22_towers)	C++17	27 / 100	4091 ms	1980 KiB

towers

#include "towers.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const ll INF=1e18+7;
const int LIM=1e5+7;
ll T[LIM], n;
void init(int _n, vector<int>_h) {
	n=_n;
	rep(i, n) T[i]=_h[i];
}
int max_towers(int l, int r, int d) {
	ll akt=1, lst=INF, ans=1;
	while(l<=r) {
		if(akt==1) {
			if(T[l]>lst) {
				lst=T[l];
			} else if(T[l]<=lst-d) {
				lst=T[l];
				++ans;
				akt=0;
			}
		} else {
			if(T[l]<lst) {
				lst=T[l];
			} else if(T[l]>=lst+d) {
				lst=T[l];
				++ans;
				akt=1;
			}
		}
		++l;
	}
	return ans/2;
}

• Subtask 1: 4 / 4
• Subtask 2: 11 / 11
• Subtask 3: 12 / 12
• Subtask 4: 0 / 14
• Subtask 5: 0 / 17
• Subtask 6: 0 / 19
• Subtask 7: 0 / 23