Submission #23229

#	Time	Username	Problem	Language	Result	Execution time	Memory
23229		RockyB	Wall (IOI14_wall)	C++14	100 / 100	729 ms	119220 KiB

wall

#include <bits/stdc++.h>

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/detail/standard_policies.hpp>

#include "wall.h"

#define f first
#define s second

#define pb push_back
#define pp pop_back
#define mp make_pair

#define sz(x) (int)x.size()
#define sqr(x) ((x) * 1ll * (x))
#define all(x) x.begin(), x.end()

#define rep(i, l, r) for (int i = l; i <= r; i++)
#define per(i, l, r) for (int i = l; i >= r; i--)

#define dbg(x) cerr << (#x) << " --> " << (x) << nl;
#define Kazakhstan ios_base :: sync_with_stdio(0), cin.tie(0), cout.tie(0);

#define nl '\n'
#define ioi exit(0);

#define Toktama ""

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
typedef tree < pair <int, int>, null_type, less < pair <int, int> >, rb_tree_tag, tree_order_statistics_node_update> ordered_set;

const int N = 2e6 + 7, inf = 1e9 + 7, mod = 1e9 + 7;
const ll linf = (ll)1e18 + 7;
const int dx[] = {-1, 0, 1, 0, 1, -1, -1, 1}, dy[] = {0, 1, 0, -1, 1, -1, 1, -1};

int n, k;
int type[N], l[N], r[N], x[N], ans[N];

int d[N << 2], u[N << 2];

void build(int v, int tl, int tr) {
  d[v] = inf, u[v] = 0;
  if (tl == tr) return;
  int tm = tl + tr >> 1;
  build(v + v, tl, tm);
  build(v + v + 1, tm + 1, tr);
}
void push(int v) {
  d[v + v] = min(d[v + v], d[v]);
  d[v + v] = max(d[v + v], u[v]);
  d[v + v + 1] = min(d[v + v + 1], d[v]);
  d[v + v + 1] = max(d[v + v + 1], u[v]);

  u[v + v] = max(u[v + v], u[v]);
  u[v + v] = min(u[v + v], d[v]);
  u[v + v + 1] = max(u[v + v + 1], u[v]);
  u[v + v + 1] = min(u[v + v + 1], d[v]);

  d[v] = inf, u[v] = 0;
}
void upd(int l, int r, int x, int type, int v, int tl, int tr) {
  if (l <= tl && tr <= r) {
    if (type == 1) {
      d[v] = max(d[v], x);
      u[v] = max(u[v], x);
    }
    else {
      u[v] = min(u[v], x);
      d[v] = min(d[v], x);
    }
    return;
  }
  if (tl > r || tr < l) return;
  int tm = tl + tr >> 1;
  push(v);
  upd(l, r, x, type, v + v, tl, tm);
  upd(l, r, x, type, v + v + 1, tm + 1, tr);
}
void out(int *a, int v, int tl, int tr) {
  if (tl == tr) {
    a[tl] = min(d[v], u[v]);
    return;
  }
  int tm = tl + tr >> 1;
  push(v);
  out(a, v + v, tl, tm);
  out(a, v + v + 1, tm + 1, tr);
}
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]) {
  build(1, 0, n - 1);
  rep(i, 0, k - 1)
    upd(left[i], right[i], height[i], op[i], 1, 0, n - 1);
  out(finalHeight, 1, 0, n - 1);
}
/*
int main() {
  #ifndef Toktama
    freopen (Toktama".in", "r", stdin);
    freopen (Toktama".out", "w", stdout);
  #endif
  //freopen (".in", "r", stdin);
  //freopen ("gen.in", "r", stdin);
  //freopen ("a.out", "w", stdout);
  scanf ("%d%d", &n, &k);
  rep(i, 0, k - 1)
    scanf ("%d%d%d%d", &type[i], &l[i], &r[i], &x[i]);
  buildWall(n, k, type, l, r, x, ans);
  rep(i, 0, n - 1)
    printf ("%d ", ans[i]);

  {
    cout << nl;
    //bye(1, 0, n - 1);
  }

  ioi
}
*/

Compilation message (stderr)

wall.cpp: In function 'void build(int, int, int)':
wall.cpp:51:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int tm = tl + tr >> 1;
               ^
wall.cpp: In function 'void upd(int, int, int, int, int, int, int)':
wall.cpp:81:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int tm = tl + tr >> 1;
               ^
wall.cpp: In function 'void out(int*, int, int, int)':
wall.cpp:91:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int tm = tl + tr >> 1;
               ^

• Subtask 1: 8 / 8
• Subtask 2: 24 / 24
• Subtask 3: 29 / 29
• Subtask 4: 39 / 39