Submission #736391

#	Time	Username	Problem	Language	Result	Execution time	Memory
736391		shoryu386	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++17	40 / 100	1074 ms	1740 KiB

Main

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

#define int long long
int n;
int arr[200007];
int solve(int tp){
	int linc = 0;
	for (int x = 1; x <= tp; x++){
		if (arr[x-1] >= arr[x]){
			//enforce an increase 
			linc += arr[x-1] - arr[x] + 1;
		}
	}
	
	int rinc = 0;
	for (int x = n-2; x >= tp; x--){
		if (arr[x+1] >= arr[x]){
			//enforce an increase 
			rinc += arr[x+1] - arr[x] + 1;
		}
	}
	//cout << tp << ' '  << linc << ' ' << rinc << '\n';
	return max(linc, rinc);
	
}

main(){
	cin >> n; for (int x = 0; x < n; x++) cin >> arr[x];
	
	int ans = LLONG_MAX/100;
	for (int x = 0; x < n; x++) ans = min(ans, solve(x));
	
	cout << ans;
}

Compilation message (stderr)

Main.cpp:28:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   28 | main(){
      | ^~~~

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