Submission #383208

#	Time	Username	Problem	Language	Result	Execution time	Memory
383208		milleniumEeee	가로등 (APIO19_street_lamps)	C++17	0 / 100	5089 ms	5276 KiB

street_lamps

#include <bits/stdc++.h>
#define fastInp ios_base::sync_with_stdio(0); cin.tie(0);
#define pii pair<int, int>
#define fr first
#define sc second
#define mk make_pair
#define pb push_back
#define szof(s) (int)s.size()
#define all(s) s.begin(), s.end()
using namespace std;

const int MAXN = (int)3e5 + 5;

char c[MAXN];
int pref[MAXN];

signed main() {
	fastInp;
	int n, q;
	cin >> n >> q;
	for (int i = 1; i <= n; i++) {
		cin >> c[i];
		pref[i] = (c[i] == '1');
	}
	string type;
	for (int xod = 1, tiktak = 1; xod <= q; xod++, tiktak++) {
		cin >> type;
		if (type == "query") {
			int l, r;
			cin >> l >> r;
			assert(l + 1 == r);
			cout << pref[l] << endl;
		}
		if (type == "toggle") {
			int pos;
			cin >> pos;
			c[pos] = (c[pos] == '1' ? '0' : '1');
		}
		for (int i = 1; i <= n; i++) {
			if (c[i] == '1') {
				pref[i]++;
			}
		}
	}
}

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