Submission #266656

#	Time	Username	Problem	Language	Result	Execution time	Memory
266656		define	Street Lamps (APIO19_street_lamps)	C++17	20 / 100	1216 ms	11412 KiB

street_lamps

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define rep(i,n) for(int i=0;i<n;i++)
#define REP(i,n) for(int i=1;i<n;i++)
#define rev(i,n) for(int i=n-1;i>=0;i--)
#define all(v) v.begin(),v.end()
#define P pair<int,int>
#define len(s) (int)s.size()
 
template<class T> inline bool chmin(T &a, T b){
	if(a>b){a=b;return true;}
	return false;
}
template<class T> inline bool chmax(T &a, T b){
	if(a<b){a=b;return true;}
	return false;
}
constexpr int mod = 1e9+7;
constexpr long long inf = 3e18;

int N,Q;
string S;
int ans[300005],now[300005];
signed main(){
	cin>>N>>Q>>S;
	rep(i,N)now[i]=-1;
	rep(i,Q){
		string s;cin>>s;
		if(s=="query"){
			int a,b;cin>>a>>b;a--;
			int res=ans[a];
			if(S[a]=='1')res+=i-now[a];
			cout<<res<<endl;
		}else {
			int a;cin>>a;a--;
			if(S[a]=='1'){
				ans[a]+=i-now[a];
				S[a]='0';
			}else {
				now[a]=i;
				S[a]='1';
			}
		}
	}
}

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