Submission #957146

#	Time	Username	Problem	Language	Result	Execution time	Memory
957146		Requiem	Bigger segments (IZhO19_segments)	C++17	37 / 100	1552 ms	3420 KiB

segments

#include <bits/stdc++.h>
#define int long long
#define fi first
#define se second
#define f1(i,n) for(int i=1;i<=n;i++)
#define f0(i,n) for(int i=0;i<=n;i++)
#define add(a,b) a=(a+b)%MOD
#define BIT(mask,i) ((mask >> i) & 1ll )
#define OFF(mask,i) (mask & (~(1ll << i))) 
#define ON(mask,i) (mask | (1ll << i))
#define xd '\n'
#define DAO(mask,i) (mask ^ (1ll << i))    
#define add(a,b) a=(a+b)%MOD
#define built(mask) __builtin_popcountll(mask)
#define all(x) x.begin(),x.end()
#define XD cout << '\n'
#define TASK "task"
//dqxzzz
using namespace std;
const int oo = 1e18;
const int maxn = 1e5+5;
const int MOD = 1e9+7;
int a[maxn];
pair<int,int> dp[maxn];
int f[maxn];
int n;

signed main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
//	freopen(TASK".inp","r",stdin);
//	freopen(TASK".out","w",stdout);
	cin >> n;
	f1(i,n) cin >> a[i];
	f1(i,n) f[i]=f[i-1]+a[i];
	dp[1] = {1,a[1]};
	f1(i,n)
	{
		f0(j,i-1)
		{
			if (f[i] - f[j] >= dp[j].se)
			{
				if (dp[j].fi + 1 > dp[i].fi)
				{
					dp[i].fi = dp[j].fi + 1;
					dp[i].se = f[i]-f[j];
				}
				else if (dp[j].fi + 1 == dp[i].fi && f[i]-f[j] < dp[i].se)
				{
					dp[i].fi = dp[j].fi + 1;
					dp[i].se = f[i]-f[j];
				}
			}
		}
	}
	cout << dp[n].fi;
	return 0;
}

• Subtask 1: 13 / 13
• Subtask 2: 14 / 14
• Subtask 3: 10 / 10
• Subtask 4: 0 / 36
• Subtask 5: 0 / 27