Submission #526396

#	Time	Username	Problem	Language	Result	Execution time	Memory
526396		CursedCode	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++14	0 / 100	3075 ms	262148 KiB

sortbooks

#include <bits/stdc++.h>
#define int long long
using namespace std;
int n;
long long a[1000005];
long long tree[1000005];
long long row;
set<int>s[2000005];
set<int>::iterator c;
void build(int id, int l, int r){
    if(l == r){
      tree[id] = a[l];
      s[id].insert(a[l]);
      return ;
    }
    int m = (l + r) / 2;
    build(id * 2, l, m);
    build(id * 2 + 1, m + 1, r);
    std::merge(s[id*2].begin(), s[id*2].end(),
                s[id*2+1].begin(), s[id*2+1].end(),
                std::inserter(s[id], s[id].begin()));
    tree[id] = max(tree[id * 2] ,tree[id * 2 + 1]);
}
long long query(int id, int L, int R, int l, int r){
	if(R < l || r < L) return 0;
	if(l <= L && R <= r) {
		return tree[id];
	}
	return max(query(id * 2, L, (L + R) / 2, l, r) ,query(id * 2 + 1, (L + R) / 2 + 1, R, l, r));
}
long long up(int id, int L, int R, int l, int r, int itr){
	if(R < l || r < L) return 0;
	if(l <= L && R <= r) {
		if(*s[id].begin() > itr) return 0;
		c = s[id].lower_bound(itr);
		c--;
		return *c;
	}
	return max(up(id * 2, L, (L + R) / 2, l, r, itr) ,up(id * 2 + 1, (L + R) / 2 + 1, R, l, r, itr));
}
long long sit(int l, int r){
    int m = (l + r) / 2;
    if(l == r) return 0;
    int x = query(1,1,n,l,m);
    long long k = up(1,1,n,m+1,r,x);
    if(k == 0) return max(sit(l, m) , sit(m+1, r)); 
	return max(sit(l, m) , max(sit(m+1, r) , k + x));
}
signed main(){
	ios_base::sync_with_stdio(false);
    cin.tie(NULL);

  	int Q;
  	cin >> n;
  	cin >> Q;
  	for(int i = 1; i <= n; i++) cin >> a[i];
	build(1, 1, n);
	while(Q--){
      	int type, l, r, x;
      	cin >> l >> r >> x;
      	if(sit(l,r) > x) cout << '0' << endl;
      	else cout << '1' << endl;
  	}
  	return 0;
}

Compilation message (stderr)

sortbooks.cpp: In function 'int main()':
sortbooks.cpp:59:12: warning: unused variable 'type' [-Wunused-variable]
   59 |        int type, l, r, x;
      |            ^~~~

• Subtask 1: 0 / 8
• Subtask 2: 0 / 9
• Subtask 3: 0 / 13
• Subtask 4: 0 / 17
• Subtask 5: 0 / 30
• Subtask 6: 0 / 23