이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
using namespace std;
const int N = 1e5 + 17;
int k, n;
long long s[N], ans, ls, rs;
priority_queue <int> lpq, rpq;
vector <pair <int, int>> vt;
bool cmp (pair <int, int> x, pair <int, int> y)
{
return x.first + x.second < y.first + y.second;
}
void add (int x)
{
int mid;
if (lpq.size())
{
mid = lpq.top();
}
else
{
mid = 1e9 + 17;
}
if (x <= mid)
{
lpq.push(x);
ls += x;
}
else
{
rpq.push(-x);
rs += x;
}
if (lpq.size() > rpq.size() + 1)
{
int t = lpq.top();
lpq.pop();
ls -= t;
rpq.push(-t);
rs += t;
}
if (rpq.size() > lpq.size())
{
int t = -rpq.top();
rpq.pop();
rs -= t;
lpq.push(t);
ls += t;
}
}
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin >> k >> n;
long long z = 0;
vt.push_back ({0, 0});
for (int i = 1; i <= n; ++i)
{
int a, b;
char x, y;
cin >> x >> a >> y >> b;
if (x == y)
{
z += abs (a - b);
continue;
}
vt.push_back ({a, b});
}
sort (vt.begin(), vt.end(), cmp);
n = vt.size() - 1;
z += n;
for (int i = 1; i <= n; ++i)
{
add (vt[i].first);
add (vt[i].second);
s[i] = rs - ls;
}
ans = s[n];
cout << ans + z;
}
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