Submission #1304780

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Source Code Expand

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <cstring>
#include <cmath>
#define ll long long
using namespace std;
int main()
{
  ios_base::sync_with_stdio(0);
  int a,b,c;
  cin >> a >> b >> c;
  int ans = ((a+b)*c)/2;
  cout << ans << endl;
  return 0;
}

Submission Info

Judge Result