Submission #371140

#	Time	Username	Problem	Language	Result	Execution time	Memory
371140		Iwanttobreakfree	Street Lamps (APIO19_street_lamps)	C++17	0 / 100	5061 ms	6956 KiB

street_lamps

#include <iostream>
#include <vector>
using namespace std;
int main(){
	string str;
	int n,q,a,b;
	char c;
	cin>>n>>q;
	vector<int> lamp(n);
	vector<int> lastupdate(n,0);
	for(int i=0;i<n;i++){
		cin>>c;
		if(c=='0')lamp[i]=0;
		else lamp[i]=1;
	}
	for(int i=1;i<=q;i++){
		cin>>str;
		if(str=="toggle"){
			cin>>a;
			a--;
			lamp[a]=1-lamp[a];
			lastupdate[a]=i;
		}
		else{
			cin>>a>>b;
			a--;
			b--;
			
			int mini=1e9;
			bool posible=true;
			for(int j=a;j<b;j++){
				if(lamp[j]==0)posible=false;
				mini=min(mini,i-lastupdate[j]);
			}
			if(posible)cout<<mini<<'\n';
			else cout<<0<<'\n';
		}
	}
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20