Submission #725711

#	Time	Username	Problem	Language	Result	Execution time	Memory
725711		josanneo22	Alternating Heights (CCO22_day1problem1)	C++17	0 / 25	166 ms	12720 KiB

Main

#include<bits/stdc++.h>
using namespace std;
#define int long long
inline int rd(){
	int x=0,w=1;
	char ch=getchar();
	for(;ch>'9'||ch<'0';ch=getchar()) if(ch=='-') w=-1;
	for(;ch>='0'&&ch<='9';ch=getchar()) x=x*10+ch-'0';
	return x*w;
}
void solve(){
	int n,k,q; cin>>n>>k>>q;
	vector<int> a(n);
	unordered_map<int,vector<int>> pos;
	for(int i=0;i<n;i++){
		cin>>a[i];
		pos[a[i]].push_back(i);
	}
	for(int que=0;que<q;que++){
		int l,r; cin>>l>>r;
		l--;r--;
		if(r-l+1>2){
			cout<<"NO\n";
		}
		else{
			if(l==r) cout<<"YES\n";
			else if(a[l]==a[r]) cout<<"NO\n"; 
			else cout<<"YES\n";
		}
	}
}
signed main()
{
	ios_base::sync_with_stdio(0); cin.tie(0);
	int tt=1; //cin>>tt;
	while(tt--){
		solve();
	}
}

• Subtask 1: 0 / 4
• Subtask 2: 0 / 6
• Subtask 3: 0 / 7
• Subtask 4: 0 / 8