제출 #400127

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
400127		dxz05	가로등 (APIO19_street_lamps)	C++14	20 / 100	2 ms	716 KiB

street_lamps

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

#include <bits/stdc++.h>

using namespace std;

void debug_out() { cerr << endl; }

template<typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
    cerr << "[" << H << "]";
    debug_out(T...);
}

#ifdef dddxxz
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif

#define SZ(s) ((int)s.size())
#define all(x) (x).begin(), (x).end()
#define revall(x) (x).rbegin(), (x).rend()

clock_t startTime;

double getCurrentTime() {
    return (double) (clock() - startTime) / CLOCKS_PER_SEC;
}

typedef long long ll;
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
const double eps = 0.00001;
const int MOD = 1e9 + 7;
const int INF = 1000000101;
const long long LLINF = 1223372000000000555;
const int N = 5e5 + 3e2;
const int M = 2222;

string street;
int n, q;

int cnt[M][M];
void Subtask_1(){
    for (int i = 0; i <= n; i++){
        for (int j = i + 1; j <= n; j++){
            if (street[j - 1] == '0') break;
            cnt[i][j] = 1;
        }
    }

    while (q--){
        string type;
        cin >> type;
        if (type[0] == 't'){ // toggle
            int x;
            cin >> x;
            x--;
            street[x] ^= '0' ^ '1';
        } else { // query
            int x, y;
            cin >> x >> y;
            x--, y--;
            cout << cnt[x][y] << endl;
        }

        for (int i = 0; i <= n; i++){
            for (int j = i + 1; j <= n; j++){
                if (street[j - 1] == '0') break;
                cnt[i][j]++;
            }
        }

    }

    exit(0);

}

void solve(int TC) {
    cin >> n >> q >> street;

    if (n <= 100 && q <= 100){
        Subtask_1();
    }



}


int main() {
    startTime = clock();
    cin.tie(nullptr); cout.tie(nullptr);
    ios_base::sync_with_stdio(false);

    bool llololcal = false;
#ifdef dddxxz
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    llololcal = true;
#endif

    int TC = 1;
    //cin >> TC;

    for (int test = 1; test <= TC; test++) {
        //debug(test);
        //cout << "Case #" << test << ": ";
        solve(test);
    }

    if (llololcal) cerr << endl << "Time: " << int(getCurrentTime() * 1000) << " ms" << endl;

    return 0;
}

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