Submission #1082194


Source Code Expand

#include <cstdio>
#include <vector>
#include <algorithm>
#include <functional>
#include <tuple>
#include <map>
#include <unordered_map>
#include <set>
#include <unordered_set>
#include <array>
#include <valarray>

using namespace std;

int main()
{
    int N;
    scanf("%d\n", &N);
    // vector<int> X(N);
    unordered_map<int, int> cards;
    for (int i = 0; i < N; ++i){
        int Xi;
        scanf("%d", &Xi); getchar();
        // X[i] = Xi;
        if (cards.count(Xi)){
            ++cards[Xi];
            if (cards[Xi] == 3) cards[Xi] = 1;
        }else{
            cards.emplace(Xi, 1);
        }
    }
    int single = 0;
    int dual = 0;
    for (auto& card : cards){
        if (card.second == 1){
            ++single;
        }else{
            ++dual;
        }
    }
    printf("%d\n", single + dual - (dual % 2));
}

Submission Info

Submission Time
Task D - Card Eater
User painfulness
Language C++14 (GCC 5.4.1)
Score 400
Code Size 882 Byte
Status AC
Exec Time 28 ms
Memory 4388 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:18:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d\n", &N);
                      ^
./Main.cpp:23:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &Xi); getchar();
                         ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 400 / 400
Status
AC × 2
AC × 17
Set Name Test Cases
Sample 00_example_01.txt, 00_example_02.txt
All 00_example_01.txt, 00_example_02.txt, 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt
Case Name Status Exec Time Memory
00_example_01.txt AC 3 ms 256 KB
00_example_02.txt AC 3 ms 256 KB
01.txt AC 3 ms 256 KB
02.txt AC 4 ms 256 KB
03.txt AC 3 ms 256 KB
04.txt AC 3 ms 256 KB
05.txt AC 3 ms 256 KB
06.txt AC 21 ms 256 KB
07.txt AC 20 ms 256 KB
08.txt AC 23 ms 640 KB
09.txt AC 21 ms 256 KB
10.txt AC 22 ms 256 KB
11.txt AC 24 ms 512 KB
12.txt AC 20 ms 256 KB
13.txt AC 21 ms 384 KB
14.txt AC 28 ms 4388 KB
15.txt AC 17 ms 256 KB