Submission #493150

#	Time	Username	Problem	Language	Result	Execution time	Memory
493150		Khizri	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++17	13 / 100	3078 ms	74768 KiB

sortbooks

#include <bits/stdc++.h>
using namespace std;
//------------------------------DEFINE------------------------------
//******************************************************************
#define IOS ios_base::sync_with_stdio(false); cin.tie(0),cout.tie(0)
#define int long long
#define ll long long
#define pb push_back		 
#define F first																 
#define S second 															 
#define INF 1e18
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pii pair<int,int>
#define pll pair<ll,ll>
#define OK cout<<"Ok"<<endl;
#define MOD (ll)(1e9+7)
#define endl "\n"
//******************************************************************
//----------------------------FUNCTION------------------------------
//******************************************************************
ll gcd(ll a,ll b){
	if(a>b) swap(a,b);
	if(a==0) return a+b;
	return gcd(b%a,a);
}
ll lcm(ll a,ll b){
	return a/gcd(a,b)*b;
}
bool is_prime(ll n){
	ll k=sqrt(n);
	if(n==2) return true;
	if(n<2||n%2==0||k*k==n) return false;
	for(int i=3;i<=k;i+=2){
		if(n%i==0){
			return false;
		}
	}
	return true;
}
//*****************************************************************
//--------------------------MAIN-CODE------------------------------
const int mxn=1e6+5;
int t=1,n,q,arr[mxn],l,r,k,color[mxn];
int res(){
	multiset<int>st;
	for(int i=l;i<=r;i++){
		st.insert(arr[i]);
	}
	for(int i=l;i<=r;i++){
		st.erase(st.find(arr[i]));
		auto it=st.lower_bound(arr[i]);
		if(it!=st.begin()){
			it--;
			int x=*it;
			if(x+arr[i]>k){
				return 0;
			}
		}
	}
	return 1;
}
void solve2(){
	while(q--){
		scanf("%lld %lld %lld",&l,&r,&k);
		printf("%lld\n",res());
	}
}
void solve(){
	scanf("%lld %lld",&n,&q);
	for(int i=1;i<=n;i++){
		scanf("%lld",&arr[i]);
	}
	if(n<=5000){
		solve2();
	}
	int x=0;
	for(int i=1;i<=n;i++){
		if(arr[i-1]>arr[i]){
			color[i]=++x;
		}
		else{
			color[i]=x;
		}
	}
	while(q--){
		scanf("%lld %lld %lld",&l,&r,&k);
		if(color[l]==color[r]){
			printf("1\n");
		}
		else{
			printf("0\n");
		}
	}
}
signed main(){
	IOS;
	//cin>>t;
	while(t--){
		solve();
	}
	return 0;
}

Compilation message (stderr)

sortbooks.cpp: In function 'void solve2()':
sortbooks.cpp:65:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |   scanf("%lld %lld %lld",&l,&r,&k);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
sortbooks.cpp: In function 'void solve()':
sortbooks.cpp:70:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   70 |  scanf("%lld %lld",&n,&q);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~
sortbooks.cpp:72:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   72 |   scanf("%lld",&arr[i]);
      |   ~~~~~^~~~~~~~~~~~~~~~
sortbooks.cpp:87:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   87 |   scanf("%lld %lld %lld",&l,&r,&k);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

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