Submission #9764

#	Time	Username	Problem	Language	Result	Execution time	Memory
9764		dolpang2	Uniting (kriii2_U)	C++14	0 / 4	0 ms	1244 KiB

U

#include <algorithm>
#include <cstdio>
#include <cstdlib>
#include <deque>
#include <vector>
const int kModulo = 1000000007;

int main() {
  long long N = 0;
  
  scanf("%lld", &N);
  std::deque<long long> bundle_of_number;
  for (long long i = 0; i < N; ++i) {
    long long number = 0;
    scanf("%lld", &number);
    bundle_of_number.push_back(number);
  }
  std::sort(bundle_of_number.begin(), bundle_of_number.end());

  long long result = 0;
  for (;;) {
    if (bundle_of_number.size() == 1) {
      break;
    }

    long long ret = bundle_of_number.at(0) * bundle_of_number.at(1);
    bundle_of_number.push_back(ret);
    result += ret;
    bundle_of_number.pop_front();
    bundle_of_number.pop_front();
    std::sort(bundle_of_number.begin(), bundle_of_number.end());
  }
  printf("%lld\n", result % kModulo);
  printf("0");
}

• Subtask 1: 0 / 4