oj.uz

Submission #894035

# Submission time Handle Problem Language Result Execution time Memory
894035 2023-12-27T20:40:37 Z raul2008487 Wall (IOI14_wall) C++17
0 / 100
 158 ms 164688 KB 
#include<bits/stdc++.h>
#include "wall.h"
#define ll long long
#define vl vector<ll>
#define pll pair<ll,ll>
#define in insert
#define fi first
#define se second
#define all(v) v.begin(), v.end()
using namespace std;
const int sz = 2e6+6;
const ll dh = 100000;
vector<array<ll, 2>> st(sz<<2), res(sz);
bool last[sz];
void comp(ll x1, ll x2){
    if(st[x1][0] >= st[x2][1]){
        st[x2] = {st[x1][0], st[x1][0]};
    }
    else if(st[x1][1] <= st[x2][0]){
        st[x2] = {st[x1][1], st[x1][1]};
    }
    else{
        st[x2] = {max(st[x1][0], st[x2][0]), min(st[x1][1], st[x2][1])};
    }
}
void push(ll v, ll l, ll r){
    if(l == r){return ;}
    comp(v, v*2);
    comp(v, v*2+1);
    st[v] = {0, dh};
}
void build(ll v, ll l, ll r){
    if(l == r){
        last[v] = 1;
        res[l] = {0, 0};
        return ;
    }
    ll m = (l + r)>>1;
    build(v*2, l, m);
    build(v*2+1, m+1, r);
}
void update(ll v, ll tl, ll tr, ll l, ll r, ll val, ll  type){
    if(tl > r || tr <l){return ;}
    if(tl >= l && tr <= r){
        if(last[v]){
            if(type == 1){
                st[v][0] = max(st[v][0], val);
                st[v][1] = max(st[v][1], val);
            }
            else{
                st[v][0] = min(st[v][0], val);
                st[v][1] = min(st[v][1], val);
            }
            return ;
        }
        if(type == 1){
            st[v] = {val, dh};
        }
        else{
            st[v] = {0, val};
        }
        push(v, tl, tr);
        return ;
    }
    push(v, tl, tr);
    ll tm = (tl+tr)>>1;
    update(v*2, tl, tm, l, r, val, type);
    update(v*2+1, tm+1, tr, l, r, val, type);
}
void trav(ll v, ll tl, ll tr){
    if(tl > tr){
        return ;
    }
    if(tl == tr){
        res[tl - 1] = st[v];
        return ;
    }
    push(v, tl, tr);
    ll tm = (tl + tr)>>1;
    trav(v*2, tl, tm);
    trav(v*2+1, tm+1, tr);
}
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
    ll i, j, z = 0;
    for(i=0;i<=(n<<2);i++){
        st[i] = {0, dh};
    }
    build(1, 1, n);
    for(i=0;i<k;i++){
        update(1, 1, n, left[i] + 1, right[i] + 1, height[i], op[i]);
    }
    trav(1, 1, n);
    for(i=0;i<n;i++){
        finalHeight[i] = max(z, res[i][0]);
    }
}

/*
10 6
1 1 8 4
0 4 9 1
0 3 6 5
1 0 5 3
1 2 2 5
0 6 7 0
*/

Compilation message

wall.cpp: In function 'void buildWall(int, int, int*, int*, int*, int*, int*)':
wall.cpp:84:11: warning: unused variable 'j' [-Wunused-variable]
   84 |     ll i, j, z = 0;
      |           ^

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 156756 KB Output is correct
2 Correct 25 ms 157020 KB Output is correct
3 Incorrect 24 ms 157048 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 157016 KB Output is correct
2 Correct 130 ms 164688 KB Output is correct
3 Incorrect 158 ms 160352 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 156764 KB Output is correct
2 Correct 25 ms 156880 KB Output is correct
3 Incorrect 24 ms 157012 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 156736 KB Output is correct
2 Correct 24 ms 157020 KB Output is correct
3 Incorrect 25 ms 157024 KB Output isn't correct
4 Halted 0 ms 0 KB -