CSES - Datatähti 2020 alku - Results
Submission details
Task:Mastot
Sender:pants64
Submission time:2019-10-12 22:27:10 +0300
Language:C++17
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2, 3details
#2ACCEPTED0.01 s1, 2, 3details
#3ACCEPTED0.01 s1, 2, 3details
#4ACCEPTED0.01 s1, 2, 3details
#5ACCEPTED0.01 s1, 2, 3details
#6ACCEPTED0.01 s1, 2, 3details
#7ACCEPTED0.01 s1, 2, 3details
#80.01 s1, 2, 3details
#9ACCEPTED0.01 s1, 2, 3details
#100.01 s1, 2, 3details
#110.01 s1, 2, 3details
#120.01 s1, 2, 3details
#130.01 s1, 2, 3details
#140.01 s1, 2, 3details
#150.01 s1, 2, 3details
#160.01 s1, 2, 3details
#170.01 s1, 2, 3details
#180.01 s1, 2, 3details
#190.01 s1, 2, 3details
#200.01 s1, 2, 3details
#21ACCEPTED0.01 s2, 3details
#22ACCEPTED0.01 s2, 3details
#230.20 s2, 3details
#240.01 s2, 3details
#250.01 s2, 3details
#260.01 s2, 3details
#270.01 s2, 3details
#280.01 s2, 3details
#290.01 s2, 3details
#300.01 s2, 3details
#310.01 s2, 3details
#320.01 s2, 3details
#330.01 s2, 3details
#34ACCEPTED0.13 s3details
#35ACCEPTED0.15 s3details
#36--3details
#370.15 s3details
#380.13 s3details
#390.12 s3details
#400.11 s3details
#410.15 s3details
#420.30 s3details
#43--3details
#440.14 s3details
#45--3details
#460.24 s3details

Code

#include <iostream>
#include <vector>
#include <algorithm>
#include <cstdint>

using std::cout, std::cin, std::vector;

vector<uint64_t> costs;
vector<uint64_t> ranges;

inline uint64_t Reach(uint64_t n)
{
	return n + ranges.at(n);
}

struct Route
{
	uint64_t currPos;
	uint64_t cumulCost;

	bool Advance();

	inline uint64_t GetReach () const
	{
		return Reach(currPos);
	}

	int Compare(const Route& other) // returns 0 if both routes are worth keeping, 1 if the first one is better and if -1 if the second one is better
	{
		uint64_t r1 = GetReach();
		uint64_t r2 = other.GetReach();
		uint64_t c1 = cumulCost;
		uint64_t c2 = other.cumulCost;

		if (r1 > r2)
		{
			return int(c1 <= c2);
		}
		else if (r1 < r2)
		{
			return -int(c1 >= c2);
		}
		else if (c1 < c2)
		{
			return 1;
		}
		else
		{
			return -1;
		}
	}

	Route(uint64_t pos, uint64_t cost)
	{
		currPos = pos;
		cumulCost = cost;
	}
};

vector<Route> routes;
vector<uint64_t> results;

uint64_t n;

void AddRoute(uint64_t pos, uint64_t cost)
{
	Route route (pos, cost);

	for (vector<Route>::iterator it = routes.begin(); it != routes.end(); it++)
	{
		int res = route.Compare(*it);
		
		if (res < 0) return;
		
		if (res > 0) it = routes.erase(it);
	}

	routes.push_back(route);
}

bool Route::Advance()
{
	if (currPos >= n) return true;

	uint64_t prevPos = currPos;
	currPos += ranges.at(currPos);


	if (currPos >= n)
	{
		results.push_back(cumulCost);
		return true;
	}

	for (uint64_t i = prevPos + 1; i < currPos; i++)
	{
		AddRoute(i, cumulCost + costs.at(i - 1));
	}

	cumulCost += costs.at(currPos - 1);

	AddRoute(currPos, cumulCost);

	return false;
}

int main()
{
	cin >> n;

	for (uint64_t i = 0; i < n; i++)
	{
		uint64_t range;
		cin >> range;
		ranges.push_back(range);
	}

	for (uint64_t i = 0; i < n - 1; i++)
	{
		uint64_t cost;
		cin >> cost;
		costs.push_back(cost);
	}

	if (ranges.front() >= n)
	{
		cout << "0\n";
		return 0;
	}

	for (uint64_t i = 0; i < ranges.front(); i++)
	{
		routes.emplace_back(i + 1, costs.at(i));
	}

	int i = 0;
	bool finished;
	do
	{
		i++;

		finished = true;

		vector<Route> oldRoutes = routes;
		routes.clear();

		for (vector<Route>::iterator it = oldRoutes.begin(); it != oldRoutes.end(); it++)
		{
			if (it->Advance() == false) finished = false;
		}
	}
	while (!finished);

	cout << *std::min_element(results.begin(), results.end()) << "\n";
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
6
2 2 3 1 2 4
4 1 3 4 2

correct output
3

user output
3

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
2
1 1
1

correct output
1

user output
1

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
2
2 1
1

correct output
0

user output
0

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
2 2 1
1 2

correct output
1

user output
1

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
2 2 1
2 1

correct output
1

user output
1

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

input
4
1 1 1 1
1000000000 1000000000 10000000...

correct output
3000000000

user output
3000000000

Test 7

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
19000000000

user output
19000000000

Test 8

Group: 1, 2, 3

Verdict:

input
20
1 1 2 1 1 1 2 1 1 2 1 1 1 2 1 ...

correct output
4609157377

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 2114061) >= this->size() (which is 20)

Test 9

Group: 1, 2, 3

Verdict: ACCEPTED

input
20
20 20 20 20 20 20 20 20 20 20 ...

correct output
0

user output
0

Test 10

Group: 1, 2, 3

Verdict:

input
19
16 10 9 17 1 16 19 4 18 13 5 3...

correct output
8424700

user output
(empty)

Error:
terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc

Test 11

Group: 1, 2, 3

Verdict:

input
20
2 4 3 4 4 4 4 1 1 3 4 2 1 3 3 ...

correct output
2817777553

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 611805688) >= this->size() (which is 20)

Test 12

Group: 1, 2, 3

Verdict:

input
20
4 4 4 4 3 4 1 3 4 1 1 4 1 3 1 ...

correct output
3020673750

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 976959108) >= this->size() (which is 20)

Test 13

Group: 1, 2, 3

Verdict:

input
20
5 1 3 4 2 4 2 2 5 1 3 3 2 4 1 ...

correct output
2064735712

user output
(empty)

Error:
terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc

Test 14

Group: 1, 2, 3

Verdict:

input
20
8 1 2 6 8 6 9 1 4 9 9 8 6 3 3 ...

correct output
378551508

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 33836017) >= this->size() (which is 20)

Test 15

Group: 1, 2, 3

Verdict:

input
20
5 2 8 9 4 10 1 8 9 9 8 1 7 8 9...

correct output
457149308

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 101233023) >= this->size() (which is 20)

Test 16

Group: 1, 2, 3

Verdict:

input
20
7 6 2 6 1 3 10 4 6 3 5 2 2 10 ...

correct output
471575451

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 347648121) >= this->size() (which is 20)

Test 17

Group: 1, 2, 3

Verdict:

input
20
6 2 2 3 8 7 2 10 8 9 6 3 10 5 ...

correct output
620685913

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 949925200) >= this->size() (which is 20)

Test 18

Group: 1, 2, 3

Verdict:

input
20
4 5 3 8 2 8 5 9 6 3 7 5 1 6 9 ...

correct output
1132427688

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 476135488) >= this->size() (which is 20)

Test 19

Group: 1, 2, 3

Verdict:

input
20
15 9 7 18 3 20 19 20 17 16 16 ...

correct output
333300698

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 21) >= this->size() (which is 20)

Test 20

Group: 1, 2, 3

Verdict:

input
20
19 18 17 16 15 14 13 12 11 10 ...

correct output
660514815

user output
(empty)

Error:
terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc

Test 21

Group: 2, 3

Verdict: ACCEPTED

input
5000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
4999000000000

user output
4999000000000

Test 22

Group: 2, 3

Verdict: ACCEPTED

input
5000
5000 5000 5000 5000 5000 5000 ...

correct output
0

user output
0

Test 23

Group: 2, 3

Verdict:

input
5000
4999 4998 4997 4996 4995 4994 ...

correct output
576616581

user output
(empty)

Error:
terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc

Test 24

Group: 2, 3

Verdict:

input
5000
3343 3711 2568 137 2621 3850 4...

correct output
671570

user output
(empty)

Test 25

Group: 2, 3

Verdict:

input
5000
119 203 420 133 175 334 461 10...

correct output
85700253

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 970165586) >= this->size() (which is 5000)

Test 26

Group: 2, 3

Verdict:

input
5000
8 6 2 1 4 5 7 3 4 2 1 10 3 6 6...

correct output
193210576015

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 210952769) >= this->size() (which is 5000)

Test 27

Group: 2, 3

Verdict:

input
5000
1 2 1 2 2 1 2 2 1 1 1 2 1 2 2 ...

correct output
1576581428593

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 484474923) >= this->size() (which is 5000)

Test 28

Group: 2, 3

Verdict:

input
5000
300 1937 2136 770 429 2388 197...

correct output
3584707

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 960409663) >= this->size() (which is 5000)

Test 29

Group: 2, 3

Verdict:

input
5000
949 46 29 2237 2413 36 42 1162...

correct output
3210354

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 530077431) >= this->size() (which is 5000)

Test 30

Group: 2, 3

Verdict:

input
5000
1557 1727 1787 360 1698 2423 1...

correct output
3177107

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 39988339) >= this->size() (which is 5000)

Test 31

Group: 2, 3

Verdict:

input
5000
484 1991 2309 1326 1901 2426 8...

correct output
4863018

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 129630062) >= this->size() (which is 5000)

Test 32

Group: 2, 3

Verdict:

input
5000
1833 459 1994 2050 272 31 708 ...

correct output
2876923

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 566617258) >= this->size() (which is 5000)

Test 33

Group: 2, 3

Verdict:

input
4999
530 2248 1916 859 2394 1403 24...

correct output
5194452

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 507104851) >= this->size() (which is 4999)

Test 34

Group: 3

Verdict: ACCEPTED

input
200000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
199999000000000

user output
199999000000000

Test 35

Group: 3

Verdict: ACCEPTED

input
200000
200000 200000 200000 200000 20...

correct output
0

user output
0

Test 36

Group: 3

Verdict:

input
200000
199999 199998 199997 199996 19...

correct output
819945000

user output
(empty)

Test 37

Group: 3

Verdict:

input
200000
9036 179861 197509 187949 9444...

correct output
59563

user output
(empty)

Test 38

Group: 3

Verdict:

input
200000
357 1516 141 399 860 1591 544 ...

correct output
247414000

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 662639796) >= this->size() (which is 200000)

Test 39

Group: 3

Verdict:

input
200000
10 4 1 7 1 8 8 4 8 2 2 4 2 4 8...

correct output
7789595210075

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 44096254) >= this->size() (which is 200000)

Test 40

Group: 3

Verdict:

input
200000
1 2 1 1 1 1 2 1 2 2 1 2 2 2 2 ...

correct output
62777824801872

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 484970868) >= this->size() (which is 200000)

Test 41

Group: 3

Verdict:

input
200000
9473 42975 69773 60909 9354 20...

correct output
76814

user output
(empty)

Test 42

Group: 3

Verdict:

input
200000
31087 18493 14158 65333 95850 ...

correct output
180614

user output
(empty)

Test 43

Group: 3

Verdict:

input
200000
66563 17340 2293 5101 35636 96...

correct output
56642

user output
(empty)

Test 44

Group: 3

Verdict:

input
200000
4005 35201 22254 56956 49098 7...

correct output
287201

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 718733102) >= this->size() (which is 200000)

Test 45

Group: 3

Verdict:

input
200000
99266 91407 53419 70750 93505 ...

correct output
54045

user output
(empty)

Test 46

Group: 3

Verdict:

input
199999
23098 95019 27998 22880 40713 ...

correct output
184595

user output
(empty)