Submission #1077306

#	Time	Username	Problem	Language	Result	Execution time	Memory
1077306		quangminh412	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++14	40 / 100	1095 ms	3948 KiB

Main

#include <bits/stdc++.h>
using namespace std;
 
/*
  John Watson
  https://codeforces.com/profile/quangminh98
 
  Mua Code nhu mua Florentino !!
*/
 
#define faster() ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define ll long long
 
const int maxn = 2e5 + 9;
const ll oo = 1e18;
 
int n;
int a[maxn];
int b[maxn];
 
ll solve(int pos)
{
	ll ans1 = 0;
	ll ans2 = 0;
	
	for (int i = 1; i <= pos; i++)
		ans1 += max(0, 1 - b[i]);
	for (int i = pos + 1; i <= n; i++)	
		ans2 += max(0, 1 + b[i]);
		
	return max(ans1, ans2);
}
 
signed main()
{
	if (fopen("test.inp", "r"))
	{
		freopen("test.inp", "r", stdin);
		freopen("test.out", "w", stdout);
	}
	faster();
 
	cin >> n;
	for (int i = 1; i <= n; i++) 
	{
		cin >> a[i];
		b[i] = a[i]	- a[i - 1];
	}
	
	ll res = 1e18;
	for (int i = 1; i <= n; i++) 
		res = min(res, solve(i));
		
	cout << res << '\n';
 
	return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:38:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |   freopen("test.inp", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:39:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |   freopen("test.out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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