Submission #493189

#	Time	Username	Problem	Language	Result	Execution time	Memory
493189		irmuun	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++17	8 / 100	3078 ms	8572 KiB

sortbooks

#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define ll long long
#define ff first
#define ss second
#define PI 3.14159265359
int main(){
	cin.tie(0);
	cout.tie(0);
	ios_base::sync_with_stdio(false);
	ll n,m,w[200001],h[200001],l,r,k,ans,i,j,b,c,mn=1e9,a;
	vector<ll>v;
	cin>>n>>m;
	for(i=1;i<=n;i++){
		cin>>w[i];
		if(i>1){
			if(w[i]<w[i-1]){
				v.pb(i);
			}
		}
		mn=min(mn,w[i]);
		h[i]=w[i];
	}
	for(i=1;i<=m;i++){
		cin>>l>>r>>k;
		if(k<mn&&v.size()>0){
			a=0;
			b=v.size()-1;
			while(a<b){
				c=(a+b)/2;
				if(w[c]<=l){
					a=c+1;
				}
				else{
					b=c;
				}
			}
			if(l<v[c]&&v[c]<=r){
				cout<<1<<endl;
			}
			else{
				cout<<0<<endl;
			}
			continue;
		}
		c=0;
		while(c==0){
			c=1;
			for(j=l;j<r;j++){
				if(w[j]+w[j+1]<=k&&w[j]>w[j+1]){
					c=0;
					swap(w[j],w[j+1]);
				}
			}
		}
		c=1;
		for(j=l;j<r;j++){
			if(w[j]>w[j+1]){
				c=0;
				break;
			}
		}
		cout<<c<<endl;
		for(j=l;j<=r;j++){
			w[j]=h[j];
		}
	}
}

Compilation message (stderr)

sortbooks.cpp: In function 'int main()':
sortbooks.cpp:12:35: warning: unused variable 'ans' [-Wunused-variable]
   12 |  ll n,m,w[200001],h[200001],l,r,k,ans,i,j,b,c,mn=1e9,a;
      |                                   ^~~
sortbooks.cpp:39:12: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized]
   39 |    if(l<v[c]&&v[c]<=r){
      |            ^

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