CODEFORCES ROUND #364 (DIV. 2) A
题目大意
暂无
题目解法
暂无
RTFC
#include <iostream>
#include <map>
using namespace std;
int n, sum, tmp;
multimap<int, int> M;
int main()
{
cin >> n;
for (int i = 0; i < n; i++)
{
cin >> tmp;
sum += tmp;
M.insert(make_pair(tmp, i + 1));
}
n >>= 1;
sum /= n;
multimap<int, int>::iterator ite;
for (int i = 0; i < n; i++)
{
ite = M.begin();
tmp = sum - ite->first;
cout << ite->second << " ";
M.erase(ite);
ite = M.find(tmp);
cout << ite->second << endl;
M.erase(ite);
}
return 0;
}