# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
59220 |
2018-07-21T08:28:00 Z |
ruhanhabib39 |
Wall (IOI14_wall) |
C++17 |
|
3000 ms |
21272 KB |
#include "wall.h"
#include <algorithm>
#include <cstdio>
#include <cassert>
namespace {
const int MAXN = 2e6;
const int INF = 1e9;
struct Range {
int l, r;
int pos_left;
bool operator==(Range rng) const {
return l == rng.l && r == rng.r;
}
bool operator!=(Range rng) const {
return !(*this == rng);
}
Range inters(Range rng) const {
if(pos_left == -1) return rng;
if(rng.pos_left == -1) return *this;
if(r < rng.l) {
rng.pos_left = 1;
return Range{rng.l, rng.l};
}
if(rng.r < l) {
rng.pos_left = 0;
return Range{rng.r, rng.r};
}
auto res = Range{std::max(l, rng.l), std::min(r, rng.r)};
res.pos_left = pos_left;
return res;
}
};
Range tree[4 * MAXN + 10];
void init(int cn, int b, int e) {
tree[cn] = {0, 0, 1};
if(b == e) return;
int m = (b + e) / 2;
init(2*cn, b, m);
init(2*cn+1, m+1, e);
}
void upd(int cn, int b, int e, int l, int r, Range rng, Range prop = Range{0, INF, -1}) {
//fprintf(stderr, "before prop tree[%d,%d] = {[%d,%d], %d}\n", b, e, tree[cn].l, tree[cn].r, tree[cn].pos_left);
tree[cn] = tree[cn].inters(prop);
//fprintf(stderr, "after prop tree[%d,%d] = {[%d,%d], %d}\n", b, e, tree[cn].l, tree[cn].r, tree[cn].pos_left);
if(r < b || l > e) return;
int m = (b + e) / 2;
//fprintf(stderr, "upd([%d,%d],[%d,%d],[%d,%d]\n", b, e, l, r, rng.l, rng.r);
if(l <= b && e <= r) {
//fprintf(stderr, "before tree[%d,%d] = {[%d,%d],%d}\n", b, e, tree[cn].l, tree[cn].r, tree[cn].pos_left);
if(b == e || tree[cn].pos_left == -1) {
tree[cn] = tree[cn].inters(rng);
} else {
upd(2*cn, b, m, b, m, tree[cn]);
upd(2*cn+1, m+1, e, m+1, e, tree[cn]);
tree[cn] = rng;
}
//fprintf(stderr, "after tree[%d,%d] = {[%d,%d],%d}\n", b, e, tree[cn].l, tree[cn].r, tree[cn].pos_left);
return;
}
prop = tree[cn];
upd(2*cn, b, m, l, r, rng, prop);
upd(2*cn+1, m+1, e, l, r, rng, prop);
tree[cn] = Range{0, INF, -1};
}
void get_res(int cn, int b, int e, Range rng, int finalHeight[]) {
if(b == e) {
Range res_range = tree[cn].inters(rng);
for(int i = b; i <= e; i++) {
if(res_range.pos_left == 1 || res_range.pos_left == -1) finalHeight[i] = res_range.l;
else finalHeight[i] = res_range.r;
}
//fprintf(stderr, "pos_left[%d] = %d, val = %d, range = [%d, %d]\n", b, rng.pos_left, finalHeight[b], res_range.l, res_range.r);
return;
}
int m = (b + e) / 2;
rng = tree[cn].inters(rng);
get_res(2*cn, b, m, tree[cn].inters(rng), finalHeight);
get_res(2*cn+1, m+1, e, tree[cn].inters(rng), finalHeight);
}
};
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
init(1, 0, n-1);
//tree[0] = Range{0, 0, 1};
for(int i = 0; i < k; i++) {
Range rng;
if(op[i] == 1) rng = Range{height[i], INF, 1};
else rng = Range{0, height[i], 0};
upd(1, 0, n-1, left[i], right[i], rng);
}
get_res(1, 0, n-1, Range{0, INF, -1}, finalHeight);
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
4 ms |
616 KB |
Output is correct |
3 |
Correct |
6 ms |
616 KB |
Output is correct |
4 |
Correct |
125 ms |
1220 KB |
Output is correct |
5 |
Correct |
450 ms |
1352 KB |
Output is correct |
6 |
Correct |
459 ms |
1416 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
1416 KB |
Output is correct |
2 |
Correct |
272 ms |
11352 KB |
Output is correct |
3 |
Execution timed out |
3072 ms |
11352 KB |
Time limit exceeded |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
11352 KB |
Output is correct |
2 |
Correct |
5 ms |
11352 KB |
Output is correct |
3 |
Correct |
6 ms |
11352 KB |
Output is correct |
4 |
Correct |
135 ms |
11352 KB |
Output is correct |
5 |
Correct |
522 ms |
11352 KB |
Output is correct |
6 |
Correct |
419 ms |
11352 KB |
Output is correct |
7 |
Correct |
3 ms |
11352 KB |
Output is correct |
8 |
Correct |
256 ms |
17428 KB |
Output is correct |
9 |
Execution timed out |
3033 ms |
17536 KB |
Time limit exceeded |
10 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
17536 KB |
Output is correct |
2 |
Correct |
6 ms |
17536 KB |
Output is correct |
3 |
Correct |
5 ms |
17536 KB |
Output is correct |
4 |
Correct |
162 ms |
17536 KB |
Output is correct |
5 |
Correct |
547 ms |
17536 KB |
Output is correct |
6 |
Correct |
634 ms |
17536 KB |
Output is correct |
7 |
Correct |
2 ms |
17536 KB |
Output is correct |
8 |
Correct |
190 ms |
21272 KB |
Output is correct |
9 |
Execution timed out |
3041 ms |
21272 KB |
Time limit exceeded |
10 |
Halted |
0 ms |
0 KB |
- |