Submission #1004999

#	Time	Username	Problem	Language	Result	Execution time	Memory
1004999		vjudge1	Street Lamps (APIO19_street_lamps)	C++17	20 / 100	494 ms	5104 KiB

street_lamps

#include <bits/stdc++.h>

using namespace std;

int main()
{
	int n,q;
	cin>>n>>q;
	string s;
	cin>>s;
	int las[n],su[n]={};
	for (int i=0;i<n;i++)
		if (s[i]=='1')
			las[i]=0;
	for (int m=1;m<=q;m++)
	{
		string t;
		cin>>t;
		if (t=="toggle")
		{
			int i;
			cin>>i;
			i--;
			if (s[i]=='0')
			{
				las[i]=m;
				s[i]='1';
			}
			else
			{
				su[i]+=m-las[i];
				s[i]='0';
			}
		}
		else
		{
			int a,b;
			cin>>a>>b;
			a--;
			int ans=su[a];
			if (s[a]=='1')
				ans+=m-las[a];
			cout<<ans<<endl;
		}
	}
	
	return 0;
}

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