#include <bits/stdc++.h>
#include "wall.h"
using namespace std;
const int N = 1<<21;
const int INF = 1e9;
int n, lo[N<<1], hi[N<<1], *ans;
void addtag(int p, int c, int d)
{
int a = lo[p], b = hi[p];
lo[p] = min(d, max(a, c));
hi[p] = max(c, min(b, d));
}
void push(int p, int b, int e)
{
if (b == e) {
ans[b] = min(max(ans[b], lo[p]), hi[p]);
} else {
int m = (b+e)/2;
addtag(p<<1, lo[p], hi[p]);
addtag(p<<1|1, lo[p], hi[p]);
}
lo[p] = 0;
hi[p] = INF;
}
void build(int p=1, int b=0, int e=n-1)
{
hi[p] = INF;
if (b == e)
return;
int m = (b+e)/2;
build(p<<1, b, m);
build(p<<1|1, m+1, e);
}
void update(int l, int r, int x, int y, int p=1, int b=0, int e=n-1)
{
if (e < l || b > r)
return;
if (b >= l && e <= r) {
addtag(p, x, y);
} else {
push(p, b, e);
int m = (b+e)/2;
update(l, r, x, y, p<<1, b, m);
update(l, r, x, y, p<<1|1, m+1, e);
}
}
void finish(int p=1, int b=0, int e=n-1)
{
push(p, b, e);
if (b == e)
return;
int m = (b+e)/2;
finish(p<<1, b, m);
finish(p<<1|1, m+1, e);
}
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[])
{
::n = n;
ans = finalHeight;
build();
for (int i = 0; i < k; ++i) {
if (op[i] == 1)
update(left[i], right[i], height[i], INF);
else
update(left[i], right[i], 0, height[i]);
}
finish();
return;
}
Compilation message
wall.cpp: In function 'void push(int, int, int)':
wall.cpp:22:13: warning: unused variable 'm' [-Wunused-variable]
int m = (b+e)/2;
^
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
248 KB |
Output is correct |
| 2 |
Correct |
4 ms |
612 KB |
Output is correct |
| 3 |
Correct |
4 ms |
612 KB |
Output is correct |
| 4 |
Correct |
9 ms |
904 KB |
Output is correct |
| 5 |
Correct |
9 ms |
1344 KB |
Output is correct |
| 6 |
Correct |
9 ms |
1344 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
1344 KB |
Output is correct |
| 2 |
Correct |
179 ms |
8684 KB |
Output is correct |
| 3 |
Correct |
210 ms |
8684 KB |
Output is correct |
| 4 |
Correct |
596 ms |
11416 KB |
Output is correct |
| 5 |
Correct |
386 ms |
11920 KB |
Output is correct |
| 6 |
Correct |
350 ms |
11964 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
11964 KB |
Output is correct |
| 2 |
Correct |
6 ms |
11964 KB |
Output is correct |
| 3 |
Correct |
5 ms |
11964 KB |
Output is correct |
| 4 |
Correct |
8 ms |
11964 KB |
Output is correct |
| 5 |
Correct |
7 ms |
11964 KB |
Output is correct |
| 6 |
Correct |
7 ms |
11964 KB |
Output is correct |
| 7 |
Correct |
2 ms |
11964 KB |
Output is correct |
| 8 |
Correct |
175 ms |
11964 KB |
Output is correct |
| 9 |
Correct |
199 ms |
11964 KB |
Output is correct |
| 10 |
Correct |
593 ms |
11964 KB |
Output is correct |
| 11 |
Correct |
459 ms |
11964 KB |
Output is correct |
| 12 |
Correct |
371 ms |
12084 KB |
Output is correct |
| 13 |
Correct |
2 ms |
12084 KB |
Output is correct |
| 14 |
Correct |
217 ms |
12084 KB |
Output is correct |
| 15 |
Correct |
38 ms |
12084 KB |
Output is correct |
| 16 |
Correct |
655 ms |
12084 KB |
Output is correct |
| 17 |
Correct |
360 ms |
12084 KB |
Output is correct |
| 18 |
Correct |
343 ms |
12084 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
12084 KB |
Output is correct |
| 2 |
Correct |
4 ms |
12084 KB |
Output is correct |
| 3 |
Correct |
3 ms |
12084 KB |
Output is correct |
| 4 |
Correct |
8 ms |
12084 KB |
Output is correct |
| 5 |
Correct |
7 ms |
12084 KB |
Output is correct |
| 6 |
Correct |
8 ms |
12084 KB |
Output is correct |
| 7 |
Correct |
2 ms |
12084 KB |
Output is correct |
| 8 |
Correct |
184 ms |
12084 KB |
Output is correct |
| 9 |
Correct |
211 ms |
12084 KB |
Output is correct |
| 10 |
Correct |
590 ms |
12084 KB |
Output is correct |
| 11 |
Correct |
412 ms |
12084 KB |
Output is correct |
| 12 |
Correct |
341 ms |
12084 KB |
Output is correct |
| 13 |
Correct |
2 ms |
12084 KB |
Output is correct |
| 14 |
Correct |
182 ms |
12084 KB |
Output is correct |
| 15 |
Correct |
35 ms |
12084 KB |
Output is correct |
| 16 |
Correct |
590 ms |
12084 KB |
Output is correct |
| 17 |
Correct |
357 ms |
12084 KB |
Output is correct |
| 18 |
Correct |
413 ms |
12084 KB |
Output is correct |
| 19 |
Correct |
905 ms |
59576 KB |
Output is correct |
| 20 |
Correct |
942 ms |
59576 KB |
Output is correct |
| 21 |
Correct |
919 ms |
59580 KB |
Output is correct |
| 22 |
Correct |
796 ms |
59580 KB |
Output is correct |
| 23 |
Correct |
811 ms |
59580 KB |
Output is correct |
| 24 |
Correct |
824 ms |
59580 KB |
Output is correct |
| 25 |
Correct |
775 ms |
59580 KB |
Output is correct |
| 26 |
Correct |
895 ms |
59580 KB |
Output is correct |
| 27 |
Correct |
806 ms |
59580 KB |
Output is correct |
| 28 |
Correct |
771 ms |
59580 KB |
Output is correct |
| 29 |
Correct |
787 ms |
59580 KB |
Output is correct |
| 30 |
Correct |
807 ms |
59580 KB |
Output is correct |
