Submission #1113657

#	Time	Username	Problem	Language	Result	Execution time	Memory
1113657		sunboi	Wall (IOI14_wall)	C++17	61 / 100	405 ms	47688 KiB

wall

#include <bits/stdc++.h>
using namespace std;


const int N = 2e5 + 1000;
vector<int> a(N);
vector<pair<long long, long long>> t(4 * N);

void push(int v, int vl, int vr){
    if (vr != vl){
         t[2 * v].first = min(max(t[2 * v].first, t[v].first), t[v].second);
    
        t[2 * v ].second = max(min(t[2 * v].second, t[v].second), t[v].first);
     
        t[2 * v + 1].first = min(max(t[2 * v + 1].first, t[v].first), t[v].second);
        
        t[2 * v + 1].second = max(min(t[2 * v + 1].second, t[v].second), t[v].first);
        
        t[v] = {0, 1e9};
    }
    
   
}




void update(int v, int vl, int vr, int l, int r, long long x, int tt){
    if (vl > r || vr < l) return;
    
    push(v, vl ,vr);
    if (vl >= l && vr <= r){
        if (tt == 1){
            t[v] = {max(t[v].first, x), max(t[v].second, x)};
        }else{
            t[v] = {min(t[v].first, x), min(t[v].second, x)};
        }
        push(v, vl ,vr);
        
        return;
    }
    
    int vm = (vl + vr) / 2;
    
    update(2 * v, vl, vm, l, r, x, tt);
    update(2 * v + 1, vm + 1, vr, l, r, x, tt);

}


int get(int v, int vl, int vr, int x){
    if (vl > x || vr < x) return -1;
    push(v, vl ,vr);
    if (vr == x && x == vl){
        return t[v].first;
    }
    
    
    int vm = (vl + vr) / 2;
    
    return max(get(2 * v, vl, vm, x), get(2 * v + 1, vm + 1, vr, x));
    
}

void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){

    for (int i = 0; i < k; i++){
        update(1, 0, n - 1, left[i], right[i], height[i], op[i]);
    }
    for (int i = 0; i < n; i++){
        finalHeight[i] = get(1, 0, n - 1, i);
    }

}

• Subtask 1: 8 / 8
• Subtask 2: 24 / 24
• Subtask 3: 29 / 29
• Subtask 4: 0 / 39