Submission #9846

#	Time^UTC-0	Username	Problem	Language	Result	Execution time	Memory
9846	2014-10-01 14:59:56	effserv	Uniting (kriii2_U)	C++98	1 / 4	12 ms	1088 KiB

This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.

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#include <cstdio>
#include <algorithm>
using namespace std;
typedef long long ll;
int main()
{
  int N;
  scanf("%d", &N);
  ll a;
  scanf("%lld", &a);
  ll A = (ll)a;
  ll C = 0;
  for (int i = 0; i < N - 1; i++)
  {
    scanf("%lld", &a);
    C += A*a;
    A += a;
  }
  printf("%lld\n", C);
  ll mod = 1000000007;
  ll bigmod = 0x7fffffffffffffff;
  ll S = 1;
 
 
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Subtask 11 / 4

#	Verdict	Execution time	Memory	Grader output
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