oj.uz

Submission #953835

# Submission time Handle Problem Language Result Execution time Memory
953835 2024-03-26T17:53:58 Z manishjha91 Snowball (JOI21_ho_t2) C++17
100 / 100
 126 ms 28612 KB 
#include<bits/stdc++.h>
using namespace std;

using ll = long long;
using ull = unsigned long long;
using lld = long double;

// #ifndef ONLINE_JUDGE
// #include "D:\cpp_codes\debugalgo.h"
// #else
// #define debug(x)
// #endif

const ll inf = 1e18;

void solve()
{
	int n,q;
	cin>>n>>q;
	
	vector<ll> a(n);
	for(int i=0; i<n; i++)
	{
		cin>>a[i];
	}
	
	vector<ll> b(q);
	
	for(int i=0; i<q; i++)
	{
		cin>>b[i];
		if(i) b[i]+=b[i-1];
	}
	
	// debug(b);
	
	vector<ll> mx(q,-inf),mn(q,inf);
	mx[0] = max(0LL,b[0]);
	mn[0] = min(0LL,b[0]);
	for(int i=1; i<q; i++)
	{
		mx[i] = max({0LL,mx[i-1],b[i]});
		mn[i] = min({0LL,mn[i-1],b[i]});
	}
	
	// debug(mn);
	// debug(mx);
	
	vector<pair<ll,pair<ll,ll>>> vright,vleft;
	vright.push_back({mx[0],{mx[0],0LL}});

	for(int i=1; i<q; i++)
	{
		vright.push_back({mx[i]-mn[i-1],{mx[i],mn[i-1]}});
	}
	
	// debug(vright);
	
	vleft.push_back({-mn[0],{-mn[0],0LL}});
	for(int i=1; i<q; i++)
	{
		vleft.push_back({mx[i-1]-mn[i],{-mn[i],mx[i-1]}});
	}
	
	// debug(vleft);
	
	vector<ll> ans(n);
	
	for(int i=0; i<n; i++)
	{
		ll left=-inf,right=-inf;
		
		if(i==0)
		{
			left = -mn.back();
		}
		else
		{
			ll delta = a[i]-a[i-1];
			
			auto itn = upper_bound(vleft.begin(),vleft.end(),make_pair(delta,make_pair(-1LL,-1LL)));
			
			//intersecting
			if(itn!=vleft.end())
			{
				left = max(left,delta - (*itn).second.second);
			}
			// no non-intersection
			if(itn!=vleft.begin())
			{
				itn--;
				left = max(left,(*itn).second.first);
			}
			
			
		}
		if(i==n-1)
		{
			right = mx.back();
		}
		else
		{
			ll delta = a[i+1]-a[i];
			
			auto it = upper_bound(vright.begin(),vright.end(),make_pair(delta,make_pair(-1LL,-1LL)));
			
			//intersecting
			if(it!=vright.end())
			{
				right = max(right, delta + (*it).second.second);
			}
			
			//non-intersecting
			
			if(it!=vright.begin())
			{
				it--;
				right = max(right, (*it).second.first);
				
			}
		}
		
		ans[i] = left + right;
		
		cout<<ans[i]<<"\n";
	}
	
	
	
}

int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);

// #ifndef ONLINE_JUDGE
// 	freopen("error.txt", "w", stderr);
// #endif

	int tt = 1;
	// cin >> tt;
	while (tt--)
	{
		solve();
	}
}

Subtask #1
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 1 ms 724 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 600 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 0 ms 600 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 516 KB Output is correct
16 Correct 1 ms 608 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 604 KB Output is correct

Subtask #2
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 1 ms 724 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 600 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 0 ms 600 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 516 KB Output is correct
16 Correct 1 ms 608 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 30 ms 22468 KB Output is correct
21 Correct 28 ms 23236 KB Output is correct
22 Correct 29 ms 22724 KB Output is correct
23 Correct 28 ms 22460 KB Output is correct
24 Correct 36 ms 22460 KB Output is correct
25 Correct 124 ms 26260 KB Output is correct
26 Correct 124 ms 26300 KB Output is correct
27 Correct 121 ms 25440 KB Output is correct
28 Correct 125 ms 25580 KB Output is correct
29 Correct 121 ms 25204 KB Output is correct
30 Correct 111 ms 25276 KB Output is correct
31 Correct 64 ms 24764 KB Output is correct
32 Correct 60 ms 26056 KB Output is correct
33 Correct 13 ms 3028 KB Output is correct
34 Correct 123 ms 25028 KB Output is correct
35 Correct 124 ms 25148 KB Output is correct
36 Correct 125 ms 25532 KB Output is correct
37 Correct 126 ms 26380 KB Output is correct
38 Correct 119 ms 25804 KB Output is correct
39 Correct 110 ms 26556 KB Output is correct
40 Correct 70 ms 25788 KB Output is correct
41 Correct 31 ms 23744 KB Output is correct
42 Correct 63 ms 26056 KB Output is correct
43 Correct 68 ms 27732 KB Output is correct
44 Correct 31 ms 23228 KB Output is correct
45 Correct 63 ms 25292 KB Output is correct
46 Correct 67 ms 27084 KB Output is correct
47 Correct 69 ms 28612 KB Output is correct
48 Correct 73 ms 27580 KB Output is correct