Submission #975597

#	Time	Username	Problem	Language	Result	Execution time	Memory
975597		Isam	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++17	0 / 100	1 ms	476 KiB

Main

#include<bits/stdc++.h>
using namespace std;

#define eb emplace_back
#define all(x) x.begin(), x.end()

constexpr int sz = 2e5 + 5;

int n, a[sz], pref[sz], suff[sz], b[sz];

int ans = (int)1E9;

signed main(){
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> n;
	for(register int i = 1; i <= n; ++i){
		cin >> a[i], b[i] = a[i];
	}
	
	for(register int i = 1; i <= n; ++i){
		pref[i] = pref[i-1];
		if(b[i] > b[i-1]) continue;
		b[i] = (pref[i] += b[i-1] - b[i] + 1, b[i-1] + 1);
	}
	
	for(register int i = n; i >= 1; --i){
		suff[i] = suff[i+1];
		if(a[i] > a[i+1]) continue;
		a[i] = (suff[i] += a[i+1] - a[i] + 1, a[i+1] + 1);
	}
	
	for(register int i = 1; i <= n; ++i){
		ans = min(ans, max(pref[i], suff[i]));
	}
	
	cout << ans << '\n';
	
	
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:16:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   16 |  for(register int i = 1; i <= n; ++i){
      |                   ^
Main.cpp:20:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   20 |  for(register int i = 1; i <= n; ++i){
      |                   ^
Main.cpp:26:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   26 |  for(register int i = n; i >= 1; --i){
      |                   ^
Main.cpp:32:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   32 |  for(register int i = 1; i <= n; ++i){
      |                   ^

• Subtask 1: 0 / 40
• Subtask 2: 0 / 60