oj.uz

Submission #291055

# Submission time Handle Problem Language Result Execution time Memory
291055 2020-09-04T15:57:37 Z davi_bart Wall (IOI14_wall) C++14
61 / 100
 1123 ms 262148 KB 
#include<bits/stdc++.h>
#include "wall.h"
using namespace std;
using ll = long long;


#define N 2000003

class SegmentTree {
  const ll inf = 1e18;
  int n, n0;
  ll max_v[4*N], smax_v[4*N], max_c[4*N];
  ll min_v[4*N], smin_v[4*N], min_c[4*N];
  ll sum[4*N];
  ll ecnt[4*N], ladd[4*N];

  void update_node_max(int k, ll x) {
    sum[k] += (x - max_v[k]) * max_c[k];

    if(max_v[k] == min_v[k]) {
      max_v[k] = min_v[k] = x;
    } else if(max_v[k] == smin_v[k]) {
      max_v[k] = smin_v[k] = x;
    } else {
      max_v[k] = x;
    }
  }
  void update_node_min(int k, ll x) {
    sum[k] += (x - min_v[k]) * min_c[k];

    if(max_v[k] == min_v[k]) {
      max_v[k] = min_v[k] = x;
    } else if(smax_v[k] == min_v[k]) {
      min_v[k] = smax_v[k] = x;
    } else {
      min_v[k] = x;
    }
  }

  void push(int k) {

    if(ladd[k]) {
      addall(2*k+1, ladd[k]);
      addall(2*k+2, ladd[k]);
      ladd[k] = 0;
    }

    if(max_v[k] < max_v[2*k+1]) {
      update_node_max(2*k+1, max_v[k]);
    }
    if(min_v[2*k+1] < min_v[k]) {
      update_node_min(2*k+1, min_v[k]);
    }

    if(max_v[k] < max_v[2*k+2]) {
      update_node_max(2*k+2, max_v[k]);
    }
    if(min_v[2*k+2] < min_v[k]) {
      update_node_min(2*k+2, min_v[k]);
    }
  }

  void update(int k) {
    sum[k] = sum[2*k+1] + sum[2*k+2];

    if(max_v[2*k+1] < max_v[2*k+2]) {
      max_v[k] = max_v[2*k+2];
      max_c[k] = max_c[2*k+2];
      smax_v[k] = max(max_v[2*k+1], smax_v[2*k+2]);
    } else if(max_v[2*k+1] > max_v[2*k+2]) {
      max_v[k] = max_v[2*k+1];
      max_c[k] = max_c[2*k+1];
      smax_v[k] = max(smax_v[2*k+1], max_v[2*k+2]);
    } else {
      max_v[k] = max_v[2*k+1];
      max_c[k] = max_c[2*k+1] + max_c[2*k+2];
      smax_v[k] = max(smax_v[2*k+1], smax_v[2*k+2]);
    }

    if(min_v[2*k+1] < min_v[2*k+2]) {
      min_v[k] = min_v[2*k+1];
      min_c[k] = min_c[2*k+1];
      smin_v[k] = min(smin_v[2*k+1], min_v[2*k+2]);
    } else if(min_v[2*k+1] > min_v[2*k+2]) {
      min_v[k] = min_v[2*k+2];
      min_c[k] = min_c[2*k+2];
      smin_v[k] = min(min_v[2*k+1], smin_v[2*k+2]);
    } else {
      min_v[k] = min_v[2*k+1];
      min_c[k] = min_c[2*k+1] + min_c[2*k+2];
      smin_v[k] = min(smin_v[2*k+1], smin_v[2*k+2]);
    }
  }

  void _update_min(ll x, int a, int b, int k, int l, int r) {
    if(b <= l || r <= a || max_v[k] <= x) {
      return;
    }
    if(a <= l && r <= b && smax_v[k] < x) {
      update_node_max(k, x);
      return;
    }

    push(k);
    _update_min(x, a, b, 2*k+1, l, (l+r)/2);
    _update_min(x, a, b, 2*k+2, (l+r)/2, r);
    update(k);
  }

  void _update_max(ll x, int a, int b, int k, int l, int r) {
    if(b <= l || r <= a || x <= min_v[k]) {
      return;
    }
    if(a <= l && r <= b && x < smin_v[k]) {
      update_node_min(k, x);
      return;
    }

    push(k);
    _update_max(x, a, b, 2*k+1, l, (l+r)/2);
    _update_max(x, a, b, 2*k+2, (l+r)/2, r);
    update(k);
  }

  void addall(int k, ll x) {
    max_v[k] += x; smax_v[k] += x;
    min_v[k] += x; smin_v[k] += x;

    sum[k] += ecnt[k] * x;
    ladd[k] += x;
  }

  void _add(ll x, int a, int b, int k, int l, int r) {
    if(b <= l || r <= a) {
      return;
    }
    if(a <= l && r <= b) {
      addall(k, x);
      return;
    }

    push(k);
    _add(x, a, b, 2*k+1, l, (l+r)/2);
    _add(x, a, b, 2*k+2, (l+r)/2, r);
    update(k);
  }

  ll _query_max(int a, int b, int k, int l, int r) {
    if(b <= l || r <= a) {
      return -inf;
    }
    if(a <= l && r <= b) {
      return max_v[k];
    }
    push(k);
    ll lv = _query_max(a, b, 2*k+1, l, (l+r)/2);
    ll rv = _query_max(a, b, 2*k+2, (l+r)/2, r);
    return max(lv, rv);
  }

  ll _query_min(int a, int b, int k, int l, int r) {
    if(b <= l || r <= a) {
      return inf;
    }
    if(a <= l && r <= b) {
      return min_v[k];
    }
    push(k);
    ll lv = _query_min(a, b, 2*k+1, l, (l+r)/2);
    ll rv = _query_min(a, b, 2*k+2, (l+r)/2, r);
    return min(lv, rv);
  }

  ll _query_sum(int a, int b, int k, int l, int r) {
    if(b <= l || r <= a) {
      return 0;
    }
    if(a <= l && r <= b) {
      return sum[k];
    }
    push(k);
    ll lv = _query_sum(a, b, 2*k+1, l, (l+r)/2);
    ll rv = _query_sum(a, b, 2*k+2, (l+r)/2, r);
    return lv + rv;
  }

public:
  SegmentTree(int n) {
    SegmentTree(n, nullptr);
  }

  SegmentTree(int n, ll *a) : n(n) {
    n0 = 1;
    while(n0 < n) n0 <<= 1;

    if(a != nullptr) {
      for(int i=0; i<n; ++i) {
        max_v[n0-1+i] = min_v[n0-1+i] = sum[n0-1+i] = a[i];
        smax_v[n0-1+i] = -inf;
        smin_v[n0-1+i] = inf;
        max_c[n0-1+i] = min_c[n0-1+i] = 1;

        ecnt[n0-1+i] = 1; ladd[n0-1+i] = 0;
      }
    } else {
      for(int i=n; i<n0; ++i) {
        max_v[n0-1+i] = min_v[n0-1+i] = sum[n0-1+i] = 0;
        smax_v[n0-1+i] = -inf;
        smin_v[n0-1+i] = inf;
        max_c[n0-1+i] = min_c[n0-1+i] = 1;

        ecnt[n0-1+i] = 1; ladd[n0-1+i] = 0;
      }
    }
    for(int i=n; i<n0; ++i) {
      max_v[n0-1+i] = smax_v[n0-1+i] = 0;
      min_v[n0-1+i] = smin_v[n0-1+i] = 0;
      max_c[n0-1+i] = min_c[n0-1+i] = 0;

      ecnt[n0-1+i] = ladd[n0-1+i] = 0;
    }
    for(int i=n0-2; i>=0; i--) {
      update(i);
      ecnt[i] = ecnt[2*i+1] + ecnt[2*i+2];
    }
  }

  void update_min(int a, int b, ll x) {
    _update_min(x, a, b, 0, 0, n0);
  }

  void update_max(int a, int b, ll x) {
    _update_max(x, a, b, 0, 0, n0);
  }

  void add(int a, int b, ll x) {
    _add(x, a, b, 0, 0, n0);
  }

  ll query_max(int a, int b) {
    return _query_max(a, b, 0, 0, n0);
  }

  ll query_min(int a, int b) {
    return _query_min(a, b, 0, 0, n0);
  }

  ll query_sum(int a, int b) {
    return _query_sum(a, b, 0, 0, n0);
  }
};

ll v[N];
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
  SegmentTree stb(n+1, v);
  for(int i=0;i<k;i++){
    if(op[i]==1){
      stb.update_max(left[i],right[i]+1,height[i]);
    }else{
      stb.update_min(left[i],right[i]+1,height[i]);
    }
  }
  for(int i=0;i<n;i++){
    finalHeight[i]=stb.query_max(i,i+1);
  }
/*
10 3
1 3 4 91220
1 5 9 48623
2 3 5 39412*/
  /*int a, b;
  ll x, r0, r1;
  int c = 0;
  while(++c) {
    a = gen(mt); b = gen(mt);
    if(a == b) continue;
    if(a > b) swap(a, b);
    switch(rtype(mt)) {
      case 0:
        x = val(mt);
        stb.update_min(a, b, x);
        for(int i=a; i<b; ++i) {
          if(x < v[i]) v[i] = x;
        }
        break;
      case 1:
        x = val(mt);
        stb.update_max(a, b, x);
        for(int i=a; i<b; ++i) {
          if(v[i] < x) v[i] = x;
        }
        break;
      case 2:
        r0 = stb.query_max(a, b);
        r1 = 0;
        for(int i=a; i<b; ++i) {
          if(r1 < v[i]) r1 = v[i];
        }
        break;
      case 3:
        r0 = stb.query_min(a, b);
        r1 = (1e18);
        for(int i=a; i<b; ++i) {
          if(v[i] < r1) r1 = v[i];
        }
        break;
      case 4:
        r0 = stb.query_sum(a, b);
        r1 = 0;
        for(int i=a; i<b; ++i) {
          r1 += v[i];
        }
        break;
      case 5:
        stb.add(a, b, x);
        for(int i=a; i<b; ++i) {
          v[i] += x;
        }
        break;
    }
  }*/
}

Subtask #1
8.0 / 8.0

# 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 512 KB Output is correct
4 Correct 11 ms 2816 KB Output is correct
5 Correct 10 ms 2816 KB Output is correct
6 Correct 10 ms 2816 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 188 ms 8312 KB Output is correct
3 Correct 113 ms 8120 KB Output is correct
4 Correct 286 ms 26104 KB Output is correct
5 Correct 269 ms 26744 KB Output is correct
6 Correct 311 ms 26828 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 3 ms 512 KB Output is correct
4 Correct 11 ms 2816 KB Output is correct
5 Correct 10 ms 2816 KB Output is correct
6 Correct 10 ms 2816 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 199 ms 8464 KB Output is correct
9 Correct 112 ms 8184 KB Output is correct
10 Correct 277 ms 26264 KB Output is correct
11 Correct 273 ms 26616 KB Output is correct
12 Correct 312 ms 26696 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 193 ms 8276 KB Output is correct
15 Correct 57 ms 5496 KB Output is correct
16 Correct 1123 ms 26412 KB Output is correct
17 Correct 488 ms 26364 KB Output is correct
18 Correct 477 ms 26616 KB Output is correct

Subtask #4
0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 3 ms 512 KB Output is correct
3 Correct 2 ms 512 KB Output is correct
4 Correct 12 ms 2816 KB Output is correct
5 Correct 9 ms 2816 KB Output is correct
6 Correct 9 ms 2816 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 195 ms 8440 KB Output is correct
9 Correct 138 ms 8124 KB Output is correct
10 Correct 289 ms 26232 KB Output is correct
11 Correct 273 ms 26616 KB Output is correct
12 Correct 299 ms 26616 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 202 ms 8312 KB Output is correct
15 Correct 52 ms 5368 KB Output is correct
16 Correct 1111 ms 26464 KB Output is correct
17 Correct 490 ms 26380 KB Output is correct
18 Correct 480 ms 26360 KB Output is correct
19 Runtime error 367 ms 262148 KB Execution killed with signal 9
20 Halted 0 ms 0 KB -