Submission #568789

#	Time	Username	Problem	Language	Result	Execution time	Memory
568789		shrimb	Street Lamps (APIO19_street_lamps)	C++17	0 / 100	0 ms	212 KiB

street_lamps

#pragma GCC optimize ("Ofast")
#pragma GCC target ("avx,avx2,fma")

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

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

template<class x>
using ordered_set = tree<x, null_type,less<x>, rb_tree_tag,tree_order_statistics_node_update>;

#define int long long
#define endl '\n'
#define mod 1000000007
//\
#define mod 1686876991

signed main () {
    cin.tie(0)->sync_with_stdio(0);

    int n, q;
    cin >> n >> q;
    string s;
    cin >> s;
    if (n <= 100 and q <= 100) {
        vector<string> v;
        while (q--) {
            v.push_back(s);
            string t;
            cin >> t;
            if (t == "query") {
                int l, r, ans = 0;
                cin >> l >> r;
                for (auto i : v) {
                    bool good = 1;
                    for (int j = l - 1 ; j < r ; j++) {
                        if (i[j] == '0') good = 0;
                    }
                    ans += good;
                }
                cout << ans << endl;
            } else {
                int i;
                cin >> i;
                s[i-1] = '0'+((s[i-1]-'0')^1);
            }
        }
    }
}

Compilation message (stderr)

street_lamps.cpp:17:1: warning: multi-line comment [-Wcomment]
   17 | //\
      | ^

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