이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include "wall.h"
#include <vector>
#define INF 1000000007
std::vector<int> V;
typedef struct node node;
struct node
{
int h;
int lop, lhmin = 0, lhmax = INF;
};
node Seg[8000005];
int min(int a, int b)
{
return (a < b)?a:b;
}
int max(int a, int b)
{
return (a > b)?a:b;
}
void flush(int s, int e, int cell)
{
int i;
if (Seg[cell].lop == 1)
{
Seg[cell].h = min(Seg[cell].h, Seg[cell].lhmax);
Seg[cell].h = max(Seg[cell].h, Seg[cell].lhmin);
if (s != e)
{
for (i = 1; i <= 2; i++)
{
if (Seg[cell].lhmax < Seg[2*cell + i].lhmin)
{
Seg[2*cell + i].lhmin = Seg[cell].lhmax;
Seg[2*cell + i].lhmax = Seg[cell].lhmax;
}
else
Seg[2*cell + i].lhmax = min(Seg[2*cell + i].lhmax, Seg[cell].lhmax);
if (Seg[cell].lhmin > Seg[2*cell + i].lhmax)
{
Seg[2*cell + i].lhmin = Seg[cell].lhmin;
Seg[2*cell + i].lhmax = Seg[cell].lhmin;
}
else
Seg[2*cell + i].lhmin = max(Seg[2*cell + i].lhmin, Seg[cell].lhmin);
Seg[2*cell + i].lop = Seg[cell].lop;
}
}
Seg[cell].lop = 0;
Seg[cell].lhmin = 0;
Seg[cell].lhmax = INF;
}
else if (Seg[cell].lop == 2)
{
Seg[cell].h = max(Seg[cell].h, Seg[cell].lhmin);
Seg[cell].h = min(Seg[cell].h, Seg[cell].lhmax);
if (s != e)
{
for (i = 1; i <= 2; i++)
{
if (Seg[cell].lhmin > Seg[2*cell + i].lhmax)
{
Seg[2*cell + i].lhmin = Seg[cell].lhmin;
Seg[2*cell + i].lhmax = Seg[cell].lhmin;
}
else
Seg[2*cell + i].lhmin = max(Seg[2*cell + i].lhmin, Seg[cell].lhmin);
Seg[2*cell + i].lop = Seg[cell].lop;
if (Seg[cell].lhmax < Seg[2*cell + i].lhmin)
{
Seg[2*cell + i].lhmin = Seg[cell].lhmax;
Seg[2*cell + i].lhmax = Seg[cell].lhmax;
}
else
Seg[2*cell + i].lhmax = min(Seg[2*cell + i].lhmax, Seg[cell].lhmax);
}
}
Seg[cell].lop = 0;
Seg[cell].lhmin = 0;
Seg[cell].lhmax = INF;
}
}
void update(int op, int qs, int qe, int h, int s, int e, int cell)
{
flush(s, e, cell);
if (qs == s && qe == e)
{
if (op == 1)
{
if (h > Seg[cell].lhmax)
{
Seg[cell].lhmin = h;
Seg[cell].lhmax = h;
}
else
Seg[cell].lhmin = max(Seg[cell].lhmin, h);
Seg[cell].lop = op;
}
else
{
if (h < Seg[cell].lhmin)
{
Seg[cell].lhmin = h;
Seg[cell].lhmax = h;
}
else
Seg[cell].lhmax = min(Seg[cell].lhmax, h);
Seg[cell].lop = op;
}
return;
}
int m = (s + e)/2;
if (qs <= m)
update(op, qs, min(m, qe), h, s, m, 2*cell + 1);
if (qe >= m + 1)
update(op, max(qs, m + 1), qe, h, m + 1, e, 2*cell + 2);
}
void answerAll(int s, int e, int cell)
{
flush(s, e, cell);
if (s == e)
{
V.push_back(Seg[cell].h);
return;
}
int m = (s + e)/2;
answerAll(s, m, 2*cell + 1);
answerAll(m + 1, e, 2*cell + 2);
}
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[])
{
int i;
for (i = 0; i < k; i++)
update(op[i], left[i], right[i], height[i], 0, n - 1, 0);
answerAll(0, n - 1, 0);
for (i = 0; i < n; i++)
finalHeight[i] = V[i];
return;
}
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