Submission #1031923

#	Time	Username	Problem	Language	Result	Execution time	Memory
1031923		Muhammet	Street Lamps (APIO19_street_lamps)	C++17	0 / 100	1 ms	1116 KiB

street_lamps

#include <bits/stdc++.h>
using namespace std;

#define ll long long int
#define sz(x) (int)x.size()
#define ff first
#define ss second

const ll N = 305;
const ll M = 1e9 + 7;

int T, n, q;

string s[N];

int main(){
	ios::sync_with_stdio(false); cin.tie(0);

	cin >> n >> q >> s[0];

	for(int i = 1; i <= q; i++){
		string s1;
		cin >> s1;
		s[i] = s[i-1];
		if(s1 == "toggle"){
			int ind;
			cin >> ind;
			ind--;
			if(s[i][ind] == '1') s[i][ind] = '0';
			else s[i][ind] = '1';
		}
		else {
			int a, b, ans = 0;
			cin >> a >> b;
			for(int j = 0; j <= i-1; j++){
				bool tr = 0;
				for(int k = a-1; k < b; k++){
					if(s[j][k] == '0'){
						tr = 1;
						break;
					}
				}
				ans += (tr == 0);
			}
			cout << ans << '\n';
		}
	}

	return 0;
}

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