Submission #1122882

#	Time	Username	Problem	Language	Result	Execution time	Memory
1122882		SulA	Crossing (JOI21_crossing)	C++20	26 / 100	7089 ms	3128 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
//#pragma GCC target("popcnt")
using namespace __gnu_pbds;
using namespace std;
using ordered_set = tree<int, null_type, less_equal<>, rb_tree_tag, tree_order_statistics_node_update>;
#define popcount __builtin_popcountll
#define all(a) (a).begin(), (a).end()

string cross(const string& A, const string& B) {
    string res;
    res.resize(A.size());
    for (int i = 0; i < A.size(); i++) {
        res[i] = A[i] == B[i] ? A[i] : A[i] ^ B[i] ^ 'I' ^ 'O' ^ 'J';
    }
    return res;
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int n; cin >> n;
    string A,B,C; cin >> A >> B >> C;
    auto D = cross(A, B);
    auto E = cross(B, C);
    auto F = cross(C, A);
    auto G = cross(D, E);
    auto H = cross(E, F);
    auto I = cross(F, D);
    string T; int q;
    cin >> q >> T;
    auto solve = [&]() {
        cout << (T == A || T == B || T == C || T == D || T == E || T == F || T == G || T == H || T == I ? "Yes" : "No") << "\n";
    };
    solve();
    while (q--) {
        int l,r; char c; cin >> l >> r >> c;
        for (int i = l-1; i <= r-1; i++)
            T[i] = c;
        solve();
    }
}

• Subtask 1: 3 / 3
• Subtask 2: 0 / 23
• Subtask 3: 23 / 23
• Subtask 4: 0 / 51