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Datatähti 2017 alku

Maalarit

  • Start: 2016-10-03 00:00:00
  • End: 2016-10-17 00:00:00
CSES - Datatähti 2017 alku - Results
Submission details
Task:Maalarit
Sender:comp
Submission time:2016-10-09 00:03:10 +0300
Language:C++
Status:READY
Result:0
Feedback
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Test results
testverdicttimegroup
#10.06 s1details
#20.15 s1details
#30.06 s1details
#40.14 s1details
#50.14 s1details
#60.05 s1details
#70.16 s2details
#80.13 s2details
#90.14 s2details
#100.15 s2details
#110.14 s2details
#120.05 s2details
#130.14 s3details
#140.06 s3details
#150.15 s3details
#160.05 s3details
#170.15 s3details
#180.05 s3details
#190.31 s4details
#200.31 s4details
#210.29 s4details
#220.30 s4details
#230.29 s4details
#24--4details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:222:27: warning: 'total_cost' may be used uninitialized in this function [-Wmaybe-uninitialized]
         total_cost += cost;
                           ^

Code

#include <iostream>
#include <vector>
#include <map>

int number_of_boards;
std::map<int, int> board_painters; // board:painter=1,2,3
int costs[3] = {0, 0, 0};

std::map<int, int> board_set_bottom;
std::map<int, int> board_set_top;

int painters_for_two(std::pair<int, int> board_one, std::pair<int, int> board_two) {
    int board_one_location = board_one.first;
    int board_two_location = board_two.first;
    int board_one_height = board_one.second;
    int board_two_height = board_two.second;
    if (board_one.second >= board_two.second) {
        board_painters.insert(std::pair<int, int>(board_one_location, 2));
        board_painters.insert(std::pair<int, int>(board_two_location, 1));
        if (board_one_height > costs[1]) {
            costs[1] = board_one_height;
        }
        if (board_two_height > costs[0]) {
            costs[0] = board_two_height;
        }
    } else {
        board_painters.insert(std::pair<int, int>(board_one_location, 1));
        board_painters.insert(std::pair<int, int>(board_two_location, 2));
        if (board_one_height > costs[0]) {
            costs[0] = board_one_height;
        }
        if (board_two_height > costs[1]) {
            costs[1] = board_two_height;
        }
    }
    return 0;
}

int find_painters(std::map<int, int> boards, bool is_bottom) {
    std::pair<int, int> tallestBoard = std::pair<int, int>(boards.rbegin()->first, boards.rbegin()->second);
    for(auto board: boards) {
        if (board.second > tallestBoard.second) {
            tallestBoard = board;
        }
    }
    
    int tallestLocation = tallestBoard.first;
    int tallestHeight = tallestBoard.second;
    
    if (tallestLocation == boards.begin()->first && is_bottom == false) {
        std::map<int, int> boards_subset = boards;
        boards_subset.erase(boards.begin()->first);
        tallestBoard = std::pair<int, int>(boards_subset.rbegin()->first, boards_subset.rbegin()->second);
        for(auto board: boards_subset) {
            if (board.second > tallestBoard.second) {
                tallestBoard = board;
            }
        }
        tallestLocation = tallestBoard.first;
        tallestHeight = tallestBoard.second;
    } else if (tallestLocation == boards.rbegin()->first && is_bottom == true) {
        std::map<int, int> boards_subset = boards;
        boards_subset.erase(boards.rbegin()->first);
        tallestBoard = std::pair<int, int>(boards_subset.rbegin()->first, boards_subset.rbegin()->second);
        for(auto board: boards_subset) {
            if (board.second > tallestBoard.second) {
                tallestBoard = board;
            }
        }
        tallestLocation = tallestBoard.first;
        tallestHeight = tallestBoard.second;
    }
    
    board_painters.insert(std::pair<int, int>(tallestLocation, 3));
    if (tallestHeight > costs[2]) {
        costs[2] = tallestHeight;
    }
    
    board_set_bottom.clear();
    board_set_top.clear();
    for(auto board: boards) {
        if (board.first < tallestLocation) {
            board_set_bottom.insert(std::pair<int, int>(board.first, board.second));
        } else if (board.first > tallestLocation) {
            board_set_top.insert(std::pair<int, int>(board.first, board.second));
        }
    }
    
    if (board_set_top.size() > 1 && board_set_top.rbegin()->first == number_of_boards) {
        std::map<int, int> bottom_set_copy = board_set_bottom;
        find_painters(board_set_top, false);
        board_set_top.clear();
        board_set_bottom = bottom_set_copy;
    } else if (board_set_bottom.size() > 1 && board_set_bottom.begin()->first == 1) {
        std::map<int, int> top_set_copy = board_set_top;
        find_painters(board_set_bottom, true);
        board_set_bottom.clear();
        board_set_top = top_set_copy;
    }
    
    int bottom_size = board_set_bottom.size();
    int top_size = board_set_bottom.size();
        
    if (bottom_size > 2) {
        find_painters(board_set_bottom, true);
    } else if (bottom_size == 2) {
        std::pair<int, int> board_one = std::pair<int, int>(board_set_bottom.begin()->first, board_set_bottom.begin()->second);
        std::pair<int, int> board_two = std::pair<int, int>(board_set_bottom.rbegin()->first, board_set_bottom.rbegin()->second);
        painters_for_two(board_one, board_two);
    } else if (bottom_size == 1 && board_set_bottom.empty() == false) {
        std::pair<int, int> board = std::pair<int, int>(board_set_bottom.begin()->first, board_set_bottom.begin()->second);
        board_painters.insert(std::pair<int, int>(board.first, 2));
        if (board.second > costs[1]) {
            costs[1] = board.second;
        }
    }

    if (top_size > 2) {
        find_painters(board_set_top, false);
    } else if (top_size == 2) {
        std::pair<int, int> board_one = std::pair<int, int>(board_set_top.begin()->first, board_set_top.begin()->second);
        std::pair<int, int> board_two = std::pair<int, int>(board_set_top.rbegin()->first, board_set_top.rbegin()->second);
        painters_for_two(board_one, board_two);
    } else if (top_size == 1 && board_set_top.empty() == false) {
        std::pair<int, int> board = std::pair<int, int>(board_set_top.begin()->first, board_set_top.begin()->second);
        board_painters.insert(std::pair<int, int>(board.first, 2));
        if (board.second > costs[1]) {
            costs[1] = board.second;
        }
    }

    return 0;
}

int find_first_painter(std::map<int, int> boards) {
    if (boards.size() == 1) {
        std::pair<int, int> board = std::pair<int, int>(boards.begin()->first, boards.begin()->second);
        costs[0] = board.second;
        board_painters.insert(std::pair<int, int>(board.first, 1));
        return 0;
    } else if (boards.size() == 2) {
        std::pair<int, int> board_one = std::pair<int, int>(boards.begin()->first, boards.begin()->second);
        std::pair<int, int> board_two = std::pair<int, int>(boards.rbegin()->first, boards.rbegin()->second);
        costs[0] = board_one.second;
        costs[1] = board_two.second;
        board_painters.insert(std::pair<int, int>(board_one.first, 1));
        board_painters.insert(std::pair<int, int>(board_two.first, 2));
        return 0;
    }
    
    std::pair<int, int> tallestBoard = std::pair<int, int>(boards.rbegin()->first, boards.rbegin()->second);
    for(auto board: boards) {
        if (board.second > tallestBoard.second) {
            tallestBoard = board;
        }
    }
    
    int tallestLocation = tallestBoard.first;
    int tallestHeight = tallestBoard.second;
    board_painters.insert(std::pair<int, int>(tallestLocation, 3));
    costs[2] = tallestHeight;
    
    for(auto board: boards) {
        if (board.first < tallestLocation) {
            board_set_bottom.insert(std::pair<int, int>(board.first, board.second));
        } else if (board.first > tallestLocation) {
            board_set_top.insert(std::pair<int, int>(board.first, board.second));
        }
    }
    
    std::vector<std::map<int, int>> board_sets;
    board_sets.push_back(board_set_bottom);
    board_sets.push_back(board_set_top);
    
    for(auto board_set: board_sets) {
        int set_size = board_set.size();
        
        if (set_size == 0) {
            continue;
        }
        
        if (set_size > 2) {
            if (board_set == board_set_bottom) {
                find_painters(board_set, true);
            } else {
                find_painters(board_set, false);
            }
            
        } else if (board_set.rbegin()->first == number_of_boards && board_set == board_set_top && set_size != 1) {
            find_painters(board_set, false);
            
        } else if (board_set.begin()->first == 1 && board_set == board_set_bottom && set_size != 1) {
            find_painters(board_set, true);
            
        } else if (set_size == 1) {
            std::pair<int, int> board = *(board_set.rbegin());
            board_painters.insert(std::pair<int, int>(board.first, 2));
            if (board.second > costs[1]) {
                costs[1] = board.second;
            }
        }
    }
    return 0;
}

int main() {
    std::cin >> number_of_boards;
    
    std::map<int, int> boards;
    int x;
    for(int p = 1; p <= number_of_boards; ++p) {
        std::cin >> x;
        boards.insert(std::pair<int, int>(p, x)); // location, height
    }
    
    find_first_painter(boards);
    
    int total_cost;
    
    int number_of_painters = 0;
    for(auto cost: costs) {
        total_cost += cost;
        if (cost != 0) {
            number_of_painters += 1;
        }
    }
    
    int lowest_painter = 3;
    for(auto set: board_painters) {
        if (set.second < lowest_painter) {
            lowest_painter = set.second;
        }
    }
    if (lowest_painter != 1) {
        for(auto set: board_painters) {
            std::pair<int, int> new_set = std::pair<int, int>(set.first, set.second - lowest_painter + 1);
            board_painters.erase(set.first);
            board_painters.insert(new_set);
        }
    }

    if (number_of_painters == 3) {
        int first_digit = board_painters.at(1);
        int second_digit = board_painters.at(2);
        for(auto set: board_painters) {
            int value = set.second;
            std::pair<int, int> new_set;
            if (value == first_digit) {
                new_set = std::pair<int, int>(set.first, 1);
            } else if (value == second_digit) {
                new_set = std::pair<int, int>(set.first, 2);
            } else {
                new_set = std::pair<int, int>(set.first, 3);
            }
            board_painters.erase(set.first);
            board_painters.insert(new_set);
        }
    } else if (number_of_painters == 2) {
        if (board_painters.at(1) != 1) {
            for(auto set: board_painters) {
                std::pair<int, int> new_set;
                if (set.second == 1) {
                    new_set = std::pair<int, int>(set.first, 2);
                } else {
                    new_set = std::pair<int, int>(set.first, 1);
                }
                board_painters.erase(set.first);
                board_painters.insert(new_set);
            }
        }
    }
    
    std::cout << total_cost << " " << number_of_painters << "\n";
    for(auto set: board_painters) {
        std::cout << set.second << " ";
    }
    
    return 0;
}

Test details

Test 1

Group: 1

Verdict:

input
10
22 54 3 91 69 90 40 29 83 71
view save

correct output
174 3
2 1 2 1 2 1 2 1 2 1 
view save

user output
233 3
1 2 1 2 1 2 1 3 2 1 
view save

Test 2

Group: 1

Verdict:

input
10
49 3 96 38 90 18 92 74 83 1
view save

correct output
170 3
1 2 1 2 1 2 1 2 1 2 
view save

user output
(empty)

Test 3

Group: 1

Verdict:

input
10
46 3 41 30 16 17 12 93 80 81
view save

correct output
173 3
2 1 2 1 2 1 2 1 2 1 
view save

user output
93 1
1 1 
view save

Test 4

Group: 1

Verdict:

input
10
46 8 95 85 82 73 82 92 53 90
view save

correct output
187 3
1 2 1 2 1 2 1 2 1 2 
view save

user output
(empty)

Test 5

Group: 1

Verdict:

input
10
41 18 61 59 40 96 5 2 74 38
view save

correct output
159 3
2 1 2 1 2 1 2 3 1 2 
view save

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  map::at

Test 6

Group: 1

Verdict:

input
10
1 1 1 1 1 1 1 1 1 1
view save

correct output
2 3
2 1 2 1 2 1 2 1 2 1 
view save

user output
2 2
1 2 1 2 2 2 2 
view save

Test 7

Group: 2

Verdict:

input
100
1 39 94 5 24 84 84 10 78 61 38...
view save

correct output
193 3
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 ...
view save

user output
(empty)

Test 8

Group: 2

Verdict:

input
100
31 73 18 88 49 28 66 5 32 48 9...
view save

correct output
199 3
2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 ...
view save

user output
(empty)

Test 9

Group: 2

Verdict:

input
100
45 56 36 60 31 10 23 79 29 17 ...
view save

correct output
198 3
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 ...
view save

user output
(empty)

Test 10

Group: 2

Verdict:

input
100
1 77 70 62 21 68 40 54 90 62 1...
view save

correct output
194 3
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 ...
view save

user output
(empty)

Test 11

Group: 2

Verdict:

input
100
4 47 41 81 56 64 12 10 20 100 ...
view save

correct output
189 3
2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 ...
view save

user output
(empty)

Test 12

Group: 2

Verdict:

input
10
1 1 1 1 1 1 1 1 1 1
view save

correct output
2 3
2 1 2 1 2 1 2 1 2 1 
view save

user output
2 2
1 2 1 2 2 2 2 
view save

Test 13

Group: 3

Verdict:

input
100
256160448 813097800 167146270 ...
view save

correct output
1929869257 3
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 ...
view save

user output
(empty)

Test 14

Group: 3

Verdict:

input
100
520002672 3542567 24668528 959...
view save

correct output
1946957555 3
1 2 3 1 2 1 2 1 2 1 2 1 2 1 2 ...
view save

user output
1544138146 2
1 1 1 1 1 2 1 2 
view save

Test 15

Group: 3

Verdict:

input
100
483158423 780224665 844754665 ...
view save

correct output
1959373560 3
2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 ...
view save

user output
(empty)

Test 16

Group: 3

Verdict:

input
100
969647264 128558017 889036329 ...
view save

correct output
1997942264 3
2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 ...
view save

user output
1288336378 2
1 1 1 1 1 1 2 1 2 1 1 2 1 
view save

Test 17

Group: 3

Verdict:

input
100
745018527 400495893 635468795 ...
view save

correct output
1961391143 3
2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 ...
view save

user output
(empty)

Test 18

Group: 3

Verdict:

input
10
1 1 1 1 1 1 1 1 1 1
view save

correct output
2 3
2 1 2 1 2 1 2 1 2 1 
view save

user output
2 2
1 2 1 2 2 2 2 
view save

Test 19

Group: 4

Verdict:

input
100000
197349274 775463806 263930657 ...
view save

correct output
1999942635 3
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 ...
view save

user output
(empty)

Test 20

Group: 4

Verdict:

input
100000
102296405 34648120 320393597 9...
view save

correct output
1999930943 3
2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 ...
view save

user output
(empty)

Test 21

Group: 4

Verdict:

input
100000
781254921 418252056 502363453 ...
view save

correct output
1999987794 3
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 ...
view save

user output
(empty)

Test 22

Group: 4

Verdict:

input
100000
849784881 230439009 455097426 ...
view save

correct output
1999979439 3
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 ...
view save

user output
(empty)

Test 23

Group: 4

Verdict:

input
100000
851456132 13422224 537539701 4...
view save

correct output
1999948226 3
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 ...
view save

user output
(empty)

Test 24

Group: 4

Verdict:

input
100000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
view save

correct output
2 3
3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 ...
view save

user output
(empty)

Tasks

A Pakkaus-B Bittijono-C Kolikot-D Järjestys-E Maalarit-

Submissions (comp)

2016-10-09 15:54:56 02016-10-09 03:04:28 02016-10-09 02:49:43 02016-10-09 00:44:39 02016-10-09 00:03:10 02016-10-08 22:02:16 02016-10-08 21:18:29 02016-10-08 20:50:22 0