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Submission #297686

# Submission time Handle Problem Language Result Execution time Memory
297686 2020-09-11T18:19:05 Z kevlee Wall (IOI14_wall) C++17
100 / 100
 1020 ms 85496 KB 
#include "wall.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mod 1000000007
#define h1 7897897897897897
#define h2 7897466719774591
#define b1 98762051
#define b2 98765431
#define inf 1000000000
#define pi 3.1415926535897932384626
#define LMAX 9223372036854775807
#define ll long long
#define fi first
#define se second
#define pii pair<int, int>
#define pll pair<ll, ll>
#define vi vector<int>
#define vl vector<ll>
#define vp vector<pii>
#define SET(a, b) memset(a, b, sizeof(a))
#define all(x) (x).begin(), (x).end()
#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
#define FORD(i, a, b) for (int i = (a); i >= (b); i--)
//max, min, current mode
struct node {
  int max, min;
} lazy[8000005], upd;
int seg[8000005];
int ans[2000005];
void merge(node b, node& a) { //update a with b
  a.max = min(max(a.max, b.max), b.min);
  a.min = min(max(a.min, b.max), b.min);
}
void pushdown(int id, int l, int r) {
  seg[id] = max(seg[id], lazy[id].max);
  seg[id] = min(seg[id], lazy[id].min);
  if (l != r) {
    merge(lazy[id], lazy[id * 2]);
    merge(lazy[id], lazy[id * 2 + 1]);
  }
  lazy[id].max = 0;
  lazy[id].min = inf;
}
void update(int id, int l, int r, int ql, int qr) {
  pushdown(id, l, r);
  if (ql > r || qr < l) return;
  if (ql <= l && r <= qr) {
    merge(upd, lazy[id]);
    pushdown(id, l, r);
    return;
  }
  int mid = (l + r) >> 1;
  update(id * 2, l, mid, ql, qr);
  update(id * 2 + 1, mid + 1, r, ql, qr);
}
void query(int id, int l, int r) {
  pushdown(id, l, r);
  if (l == r) {
    ans[l] = seg[id];
    return;
  }
  int mid = (l + r) >> 1;
  query(id * 2, l, mid);
  query(id * 2 + 1, mid + 1, r);
}
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
  FOR(i, 0, k-1) {
    left[i]++;
    right[i]++;
    if (op[i] == 1) {
      upd = {height[i], inf};
      update(1, 1, n, left[i], right[i]);
    } else {
      upd = {0, height[i]};
      update(1, 1, n, left[i], right[i]);
    }
  }
  query(1, 1, n);
  FOR(i, 0, n-1) finalHeight[i] = ans[i+1];
  return;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 288 KB Output is correct
2 Correct 3 ms 512 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 8 ms 1024 KB Output is correct
5 Correct 7 ms 1024 KB Output is correct
6 Correct 7 ms 1152 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 175 ms 11128 KB Output is correct
3 Correct 232 ms 6008 KB Output is correct
4 Correct 674 ms 15224 KB Output is correct
5 Correct 398 ms 15736 KB Output is correct
6 Correct 385 ms 15736 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 8 ms 1024 KB Output is correct
5 Correct 7 ms 1024 KB Output is correct
6 Correct 7 ms 1024 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 179 ms 10360 KB Output is correct
9 Correct 233 ms 6684 KB Output is correct
10 Correct 676 ms 14200 KB Output is correct
11 Correct 391 ms 14524 KB Output is correct
12 Correct 387 ms 14700 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 173 ms 10232 KB Output is correct
15 Correct 41 ms 2552 KB Output is correct
16 Correct 738 ms 14460 KB Output is correct
17 Correct 390 ms 14456 KB Output is correct
18 Correct 387 ms 14584 KB Output is correct

Subtask #4
39.0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 8 ms 1024 KB Output is correct
5 Correct 7 ms 1024 KB Output is correct
6 Correct 7 ms 1024 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 176 ms 10340 KB Output is correct
9 Correct 228 ms 6776 KB Output is correct
10 Correct 670 ms 14200 KB Output is correct
11 Correct 395 ms 14584 KB Output is correct
12 Correct 386 ms 14840 KB Output is correct
13 Correct 1 ms 512 KB Output is correct
14 Correct 180 ms 10360 KB Output is correct
15 Correct 43 ms 2680 KB Output is correct
16 Correct 768 ms 14456 KB Output is correct
17 Correct 401 ms 14456 KB Output is correct
18 Correct 382 ms 14456 KB Output is correct
19 Correct 965 ms 85112 KB Output is correct
20 Correct 970 ms 82812 KB Output is correct
21 Correct 969 ms 85496 KB Output is correct
22 Correct 977 ms 82780 KB Output is correct
23 Correct 967 ms 82936 KB Output is correct
24 Correct 1020 ms 82936 KB Output is correct
25 Correct 971 ms 82728 KB Output is correct
26 Correct 968 ms 85368 KB Output is correct
27 Correct 982 ms 85404 KB Output is correct
28 Correct 968 ms 82808 KB Output is correct
29 Correct 969 ms 82916 KB Output is correct
30 Correct 977 ms 82680 KB Output is correct