Submission #341695

#	Time	Username	Problem	Language	Result	Execution time	Memory
341695		blacktulip	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++17	8 / 100	236 ms	48492 KiB

sortbooks

#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")

#include <bits/stdc++.h>

using namespace std;

typedef long long lo;
typedef pair< lo,lo > PII;

#define fi first
#define se second
#define int long long
#define mp make_pair
#define endl "\n"
#define pb push_back
#define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define FOR for(int i=0;i<n;i++)
#define mid ((start+end)/2)
#define ort ((bas+son)/2)

const lo inf = 3000000000;
const lo KOK = 100000;
const lo LOG = 30;
const lo li = 500005;
const lo mod = 1000000007;

int n,m,b[li],a[li],k,flag,t,maxi[li],mx,dp[li],mini[li];
int cev;
string s;
vector<int> v[1005];

int32_t main(void){
    scanf("%lld %lld",&n,&t);
	FOR scanf("%lld",&a[i]);
	int sqrtt=sqrt(n);
	int mx=0;
	//~ int mn=inf;
	for(int i=0;i<=n;i++)mini[i]=inf;
	FOR{
		if(a[i]<maxi[i/sqrtt])dp[i/sqrtt]=max(dp[i/sqrtt],maxi[i/sqrtt]+a[i]);
		maxi[i/sqrtt]=max(maxi[i/sqrtt],a[i]);
		mini[i/sqrtt]=min(mini[i/sqrtt],a[i]);
		v[i/sqrtt].pb(a[i]);
	}
	FOR sort(v[i].begin(),v[i].end());
	while(t--){
		int l,r,x;
		scanf("%lld %lld %lld",&l,&r,&x);
		mx=0;
		cev=0;
		l--;
		r--;
		for(int i=0;i<=n;i++){
			int bas=i*sqrtt;
			int son=(i+1)*sqrtt-1;
			if(son<l)continue;
			if(bas>r)break;
			if(bas<l && son>r){
				for(int j=l;j<=r;j++){
					mx=max(mx,a[j]);
					if(a[j]<mx)cev=max(cev,mx+a[j]);
				}
				continue;
			}
			if(bas<l){
				for(int j=l;j<=son;j++){
					mx=max(mx,a[j]);
					if(a[j]<mx)cev=max(cev,mx+a[j]);
				}
				continue;
			}
			if(son>r){
				for(int j=bas;j<=r;j++){
					mx=max(mx,a[j]);
					if(a[j]<mx)cev=max(cev,mx+a[j]);
				}
				continue;
			}
			//~ cout<<i<<" :: "<<dp[i]<<" :: "<<mini[i]<<" :: "<<maxi[i]<<endl;
			cev=max(cev,dp[i]);
			int at=lower_bound(v[i].begin(),v[i].end(),mx)-v[i].begin();
			if(at!=0){
				at--;
				cev=max(cev,mx+v[i][at]);
			}
			//~ if(mini[i]<mx)cev=max(cev,mini[i]+mx);
			
			mx=max(mx,maxi[i]);
		}
		if(cev>x)printf("0\n");
		else printf("1\n");
	}
    return 0;
}

Compilation message (stderr)

sortbooks.cpp: In function 'int32_t main()':
sortbooks.cpp:34:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   34 |     scanf("%lld %lld",&n,&t);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~
sortbooks.cpp:35:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   35 |  FOR scanf("%lld",&a[i]);
      |      ~~~~~^~~~~~~~~~~~~~
sortbooks.cpp:49:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   49 |   scanf("%lld %lld %lld",&l,&r,&x);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

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