oj.uz

Submission #52301

# Submission time Handle Problem Language Result Execution time Memory
52301 2018-06-25T08:37:20 Z win11905 Wall (IOI14_wall) C++11
100 / 100
 1010 ms 239024 KB 
#include "wall.h"
#include <bits/stdc++.h>
using namespace std;

const int N = 1<<21, INF = 1e9;

int n, lo[N<<1], hi[N<<1], *ans;

void addtag(int p, int low, int high) {
  lo[p] = min(high, max(lo[p], low));
  hi[p] = max(low, min(hi[p], high));
}

void push(int p, int l, int r) {
  if(l == r) ans[l] = min(max(ans[r], lo[p]), hi[p]);
  else {
    int m = (l + r) >> 1;
    addtag(p<<1, lo[p], hi[p]);
    addtag(p<<1|1, lo[p], hi[p]);
  }
  lo[p] = 0;
  hi[p] = INF;
}

void update(int x, int y, int lo, int hi, int p = 1, int l = 0, int r = n-1) {
  if(x > r || l > y) return;
  if(x <= l && r <= y) return addtag(p, lo, hi);
  push(p, l, r);
  int m = (l + r) >> 1;
  update(x, y, lo, hi, p<<1, l, m), update(x, y, lo, hi, p<<1|1, m+1, r); 
}

void build(int p = 1, int l = 0, int r = n-1) {
  hi[p] = INF;
  if(l == r) return;
  int m = (l + r) >> 1;
  build(p<<1, l, m), build(p<<1|1, m+1, r);
}

void fin(int p = 1, int l = 0, int r = n-1) {
  push(p, l, r);
  if(l == r) return;
  int m = (l + r) >> 1;
  fin(p<<1, l, m), fin(p<<1|1, m+1, r);
}

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]);
  }
  fin();
  return;
}

Compilation message

wall.cpp: In function 'void push(int, int, int)':
wall.cpp:17:9: warning: unused variable 'm' [-Wunused-variable]
     int m = (l + r) >> 1;
         ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 4 ms 616 KB Output is correct
3 Correct 4 ms 616 KB Output is correct
4 Correct 8 ms 808 KB Output is correct
5 Correct 7 ms 848 KB Output is correct
6 Correct 8 ms 992 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 992 KB Output is correct
2 Correct 170 ms 8500 KB Output is correct
3 Correct 249 ms 8500 KB Output is correct
4 Correct 602 ms 11016 KB Output is correct
5 Correct 360 ms 11628 KB Output is correct
6 Correct 347 ms 11628 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 11628 KB Output is correct
2 Correct 4 ms 11628 KB Output is correct
3 Correct 4 ms 11628 KB Output is correct
4 Correct 8 ms 11628 KB Output is correct
5 Correct 11 ms 11628 KB Output is correct
6 Correct 12 ms 11628 KB Output is correct
7 Correct 2 ms 11628 KB Output is correct
8 Correct 193 ms 11628 KB Output is correct
9 Correct 237 ms 11628 KB Output is correct
10 Correct 618 ms 11628 KB Output is correct
11 Correct 421 ms 11692 KB Output is correct
12 Correct 414 ms 11692 KB Output is correct
13 Correct 3 ms 11692 KB Output is correct
14 Correct 193 ms 11692 KB Output is correct
15 Correct 49 ms 11692 KB Output is correct
16 Correct 630 ms 21616 KB Output is correct
17 Correct 364 ms 30708 KB Output is correct
18 Correct 393 ms 39752 KB Output is correct

Subtask #4
39.0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 39752 KB Output is correct
2 Correct 5 ms 39752 KB Output is correct
3 Correct 3 ms 39752 KB Output is correct
4 Correct 9 ms 39752 KB Output is correct
5 Correct 11 ms 39752 KB Output is correct
6 Correct 7 ms 39752 KB Output is correct
7 Correct 2 ms 39752 KB Output is correct
8 Correct 173 ms 39752 KB Output is correct
9 Correct 203 ms 39752 KB Output is correct
10 Correct 610 ms 39752 KB Output is correct
11 Correct 372 ms 39940 KB Output is correct
12 Correct 346 ms 39996 KB Output is correct
13 Correct 2 ms 39996 KB Output is correct
14 Correct 187 ms 39996 KB Output is correct
15 Correct 37 ms 39996 KB Output is correct
16 Correct 615 ms 50064 KB Output is correct
17 Correct 355 ms 59220 KB Output is correct
18 Correct 363 ms 68100 KB Output is correct
19 Correct 806 ms 126296 KB Output is correct
20 Correct 783 ms 134328 KB Output is correct
21 Correct 781 ms 147100 KB Output is correct
22 Correct 897 ms 155268 KB Output is correct
23 Correct 905 ms 165808 KB Output is correct
24 Correct 958 ms 176152 KB Output is correct
25 Correct 1006 ms 186740 KB Output is correct
26 Correct 885 ms 199520 KB Output is correct
27 Correct 1010 ms 210096 KB Output is correct
28 Correct 757 ms 217884 KB Output is correct
29 Correct 997 ms 228444 KB Output is correct
30 Correct 792 ms 239024 KB Output is correct