oj.uz

Submission #1044945

# Submission time Handle Problem Language Result Execution time Memory
1044945 2024-08-05T14:57:19 Z vjudge1 Street Lamps (APIO19_street_lamps) C++17
20 / 100
 5000 ms 524288 KB 
// #pragma GCC optimize("O3,Ofast,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include <bits/stdc++.h>

using namespace std;


#define int long long int
#define MP make_pair
#define pb push_back
#define REP(i,n) for(int i = 0; (i) < (n); (i)++)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()


void fastio() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
}


const double EPS = 0.00001;
const int INF = 1e9+500;
const int N = 3e5+5;
const int ALPH = 26;
const int LGN = 25;
constexpr int MOD = 1e9+7;
int n,m,q;

inline void solve() {
    cin >> n >> q;
    string s;
    cin >> s;
    s = '$' + s;
    vector<vector<array<int, 2> > > upd(n + 2, vector<array<int, 2> >()); // (]
    vector<array<int, 3> > que;
    vector<int> tm(n + 2, 0);
    for(int z = 1; z <= q; z++) {
        string t;
        cin >> t;
        if(t == "toggle") {
            int i;
            cin >> i;
            if(s[i] == '0') {
                tm[i] = z;
                s[i] = '1';
            }
            else {
                upd[i].pb({tm[i], z});
                s[i] = '0';
            }
        }   
        else {
            int a, b;
            cin >> a >> b;
            que.pb({a, b, z});
        }
    } 
    for(int i = 1; i <= n; i++) {
        if(s[i] == '1') {
            upd[i].pb({tm[i], q});
        }
    }
    // for(int i = 1; i <= n; i++) {
    //     cout << "i:" << i << "\n\n";
    //     auto &x = upd[i];
    //     for(auto &c : x) {
    //         cout << c[0] << " " << c[1] << "\n";
    //     }
    // }
    vector<vector<int> > grid(n + 3, vector<int>(q + 3, 0));
    vector<int> ans(q + 1, -1);
    for(int i = 1; i <= n; i++) {
        for(auto c : upd[i]) {
            for(int j = c[0] + 1; j <= c[1]; j++) {
                grid[i][j] = 1;
            }
        }
    }
    for(auto c : que) { 
        ans[c[2]] = 0;
        for(int t = 1; t <= c[2]; t++) {
            bool f = 1;
            for(int i = c[0]; i <= c[1] - 1; i++) {
                if(!grid[i][t]) f = 0;
            }
            ans[c[2]] += f;
        }
    }
    for(int i = 0; i <= q; i++) {
        if(ans[i] == -1) continue;
        cout << ans[i] << "\n";
    }

}
 
signed main() {

    fastio();
    int test = 1;
    //cin>>test;
    while(test--) {
        solve();
    }
    
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5091 ms 251560 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8284 KB Output is correct
2 Correct 38 ms 8472 KB Output is correct
3 Correct 70 ms 8284 KB Output is correct
4 Correct 117 ms 8284 KB Output is correct
5 Runtime error 191 ms 524288 KB Execution killed with signal 9
6 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 130 ms 8284 KB Output is correct
2 Correct 106 ms 8284 KB Output is correct
3 Correct 68 ms 8284 KB Output is correct
4 Correct 9 ms 8284 KB Output is correct
5 Runtime error 201 ms 524288 KB Execution killed with signal 9
6 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Execution timed out 5091 ms 251560 KB Time limit exceeded
9 Halted 0 ms 0 KB -