/ SeriousOJ /

Record Detail

Compile Error

foo.cc: In function 'int main()':
foo.cc:10:9: error: 'vector' was not declared in this scope
   10 |         vector<int> numbers(numberCount);
      |         ^~~~~~
foo.cc:2:1: note: 'std::vector' is defined in header '<vector>'; did you forget to '#include <vector>'?
    1 | #include <iostream>
  +++ |+#include <vector>
    2 | using namespace std;
foo.cc:10:16: error: expected primary-expression before 'int'
   10 |         vector<int> numbers(numberCount);
      |                ^~~
foo.cc:13:20: error: 'numbers' was not declared in this scope
   13 |             cin >> numbers[i];
      |                    ^~~~~~~
foo.cc:15:14: error: 'numbers' was not declared in this scope
   15 |         sort(numbers.begin(), numbers.end(), greater<int>());
      |              ^~~~~~~
foo.cc:15:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   15 |         sort(numbers.begin(), numbers.end(), greater<int>());
      |         ^~~~
      |         short

Code

#include <iostream>
using namespace std;
int main() {
    int testCases;
    cin >> testCases;

    while (testCases--) {
        int numberCount;
        cin >> numberCount;
        vector<int> numbers(numberCount);

        for (int i = 0; i < numberCount; i++) {
            cin >> numbers[i];
        }
        sort(numbers.begin(), numbers.end(), greater<int>());
        long long totalScore = 0;
        for (int i = 0; i < numberCount; i++) {
            if (i % 2 == 0) {
                totalScore += numbers[i];
            } else {
                totalScore -= numbers[i];
            }
        }
        cout << totalScore << endl;
    }
    return 0;
}

Information

Submit By
Type
Submission
Problem
P1208 C. Game on Integer
Contest
Educational Round 1
Language
C++17 (G++ 13.2.0)
Submit At
2025-07-14 16:05:01
Judged At
2025-07-14 16:05:01
Judged By
Score
0
Total Time
0ms
Peak Memory
0 Bytes