Submission #1318556

#	Time	Username	Problem	Language	Result	Execution time	Memory
1318556		Robert_junior	Wall (IOI14_wall)	C++20	0 / 100	74 ms	8068 KiB

wall

#include <bits/stdc++.h>
using namespace std; 
const int N = 2e6 + 100, mod = 998443532;
struct str{
    int mn = 0, mx = INT_MAX;
};
str t[N * 4];
void F(int v, str x){
    t[v].mn = max(t[v].mn, x.mn);
    t[v].mx = max(t[v].mx, t[v].mn);
    t[v].mx = min(t[v].mx, x.mx);
    t[v].mn = min(t[v].mn, t[v].mx);
}
void push(int v, int l, int r){
    if(l != r){
        F(v + v, t[v]);
        F(v + v + 1, t[v]);
    }
    t[v] = str();
}
void upd(int v, int l, int r, int ll, int rr, str x){
    if(l <= ll && rr <= r){
        F(v, x);
        return;
    }
    if(l > rr || ll > r) return;
    push(v, ll, rr);
    int m = (ll + rr) / 2;
    upd(v + v, l, r, ll, m, x);
    upd(v + v + 1, l, r, m + 1, rr, x);
}
str get(int v, int l, int r, int idx){
    if(l == r){
        return t[v];
    }
    else{
        push(v, l, r);
        int m = (l + r) / 2;
        if(idx <= m) return get(v + v, l, m, idx);
        else return get(v + v + 1, m + 1, r, idx); 
        
    }
}
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
	for(int i = 0; i < k; i++){
	    if(op[i] == 1){
	        upd(1, 0, n - 1, left[i], right[i], {height[i], INT_MAX});
	    }
	    else{
	        upd(1, 0, n - 1, left[i], right[i], {0, height[i]});
	    }
	}
	for(int i = 0; i < n; i++){
	    finalHeight[i] = (get(1, 0, n - 1, i)).mn;
	}
}

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