#include <bits/stdc++.h>
using namespace std;
using ll = long long;
string cross(string &a, string &b) {
string res(a.size(), 'a');
for (int i = 0; i < a.size(); ++i) {
if (a[i] == b[i]) {
res[i] = a[i];
} else {
res[i] = 'J' ^ 'O' ^ 'I' ^ a[i] ^ b[i];
}
}
return res;
}
constexpr int MOD = 1e9 + 9;
constexpr int P = 239;
struct Info {
int h, power, sum;
Info() = default;
Info(int a, int b) : h(a), power(b) {}
};
vector<Info> t;
vector<int> tag;
int sz;
void apply(int x, int y) {
if (y != -1) {
t[x].h = 1LL * t[x].sum * y % MOD;
tag[x] = y;
}
}
void push(int x) {
apply(x << 1, tag[x]);
apply(x << 1 | 1, tag[x]);
tag[x] = -1;
}
void pull(int x) {
t[x].h = (t[x << 1].h + 1LL * t[x << 1].power * P % MOD * t[x << 1 | 1].h) % MOD;
t[x].power = 1LL * t[x << 1].power * t[x << 1 | 1].power % MOD * P % MOD;
t[x].sum = (t[x << 1].sum + 1LL * t[x << 1].power * P % MOD * t[x << 1 | 1].sum) % MOD;
}
int to_int(char c) {
return c == 'J' ? 0 : 1 + (c != 'O');
}
void init(int n, string T) {
sz = 1 << __lg(n) + bool(n & (n - 1));
tag.assign(sz << 1, -1), t.resize(sz << 1);
for (int i = 0; i < n; ++i) {
t[i + sz].sum = t[i + sz].power = 1;
t[i + sz].h = to_int(T[i]);
}
for (int i = sz - 1; i > 0; --i) {
pull(i);
}
}
void rangeApply(int l, int r, int tg, int x = 1, int lx = 0, int rx = sz) {
if (l >= rx || lx >= r) {
return;
}
if (l <= lx && rx <= r) {
apply(x, tg);
return;
}
push(x);
int mid = (lx + rx) >> 1;
rangeApply(l, r, tg, x << 1, lx, mid), rangeApply(l, r, tg, x << 1 | 1, mid, rx);
pull(x);
}
int hashed(string &s) {
int ans = 0;
for (int i = int(s.size()) - 1; i >= 0; --i) {
ans = (1LL * ans * P + to_int(s[i])) % MOD;
}
return ans;
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n;
cin >> n;
string A, B, C;
cin >> A >> B >> C;
unordered_set<string> every{A, B, C};
queue<string> qu;
qu.push(A), qu.push(B), qu.push(C);
while (!qu.empty()) {
string s = qu.front();
qu.pop();
for (string to : every) {
string res = cross(s, to);
if (!every.count(res)) {
qu.push(res);
every.insert(res);
}
}
}
unordered_set<int> st;
for (string s : every) {
st.insert(hashed(s));
}
int q;
cin >> q;
string T;
cin >> T;
init(n, T);
cout << (st.count(t[1].h) ? "Yes\n" : "No\n");
while (q--) {
int l, r;
char c;
cin >> l >> r >> c;
rangeApply(l - 1, r, to_int(c));
cout << (st.count(t[1].h) ? "Yes\n" : "No\n");
}
return 0;
}
Compilation message
Main.cpp:2:1: error: extended character is not valid in an identifier
2 |
| ^
Main.cpp:5:1: error: extended character is not valid in an identifier
5 |
| ^
Main.cpp:17:1: error: extended character is not valid in an identifier
17 |
| ^
Main.cpp:20:1: error: extended character is not valid in an identifier
20 |
| ^
Main.cpp:23:1: error: extended character is not valid in an identifier
23 |
| ^
Main.cpp:27:1: error: extended character is not valid in an identifier
27 |
| ^
Main.cpp:31:1: error: extended character is not valid in an identifier
31 |
| ^
Main.cpp:38:1: error: extended character is not valid in an identifier
38 |
| ^
Main.cpp:44:1: error: extended character is not valid in an identifier
44 |
| ^
Main.cpp:50:1: error: extended character is not valid in an identifier
50 |
| ^
Main.cpp:54:1: error: extended character is not valid in an identifier
54 |
| ^
Main.cpp:58:1: error: extended character is not valid in an identifier
58 |
| ^
Main.cpp:67:1: error: extended character is not valid in an identifier
67 |
| ^
Main.cpp:76:1: error: extended character is not valid in an identifier
76 |
| ^
Main.cpp:78:1: error: extended character is not valid in an identifier
78 |
| ^
Main.cpp:80:1: error: extended character is not valid in an identifier
80 |
| ^
Main.cpp:82:1: error: extended character is not valid in an identifier
82 |
| ^
Main.cpp:85:1: error: extended character is not valid in an identifier
85 |
| ^
Main.cpp:93:1: error: extended character is not valid in an identifier
93 |
| ^
Main.cpp:97:1: error: extended character is not valid in an identifier
97 |
| ^
Main.cpp:100:1: error: extended character is not valid in an identifier
100 |
| ^
Main.cpp:103:1: error: extended character is not valid in an identifier
103 |
| ^
Main.cpp:105:1: error: extended character is not valid in an identifier
105 |
| ^
Main.cpp:108:1: error: extended character is not valid in an identifier
108 |
| ^
Main.cpp:112:1: error: extended character is not valid in an identifier
112 |
| ^
Main.cpp:115:1: error: extended character is not valid in an identifier
115 |
| ^
Main.cpp:122:1: error: extended character is not valid in an identifier
122 |
| ^
Main.cpp:127:1: error: extended character is not valid in an identifier
127 |
| ^
Main.cpp:130:1: error: extended character is not valid in an identifier
130 |
| ^
Main.cpp:133:1: error: extended character is not valid in an identifier
133 |
| ^
Main.cpp:135:1: error: extended character is not valid in an identifier
135 |
| ^
Main.cpp:137:1: error: extended character is not valid in an identifier
137 |
| ^
Main.cpp:142:1: error: extended character is not valid in an identifier
142 |
| ^
Main.cpp:144:1: error: extended character is not valid in an identifier
144 |
| ^
Main.cpp:147:1: error: extended character is not valid in an identifier
147 |
| ^
Main.cpp:2:1: error: '\U000000a0' does not name a type
2 |
| ^
Main.cpp:5:1: error: '\U000000a0' does not name a type
5 |
| ^
Main.cpp:17:1: error: '\U000000a0' does not name a type
17 |
| ^
Main.cpp:20:1: error: '\U000000a0' does not name a type
20 |
| ^
Main.cpp:27:1: error: '\U000000a0' does not name a type
27 |
| ^
Main.cpp:29:1: error: 'vector' does not name a type
29 | vector<int> tag;
| ^~~~~~
Main.cpp:31:1: error: '\U000000a0' does not name a type
31 |
| ^
Main.cpp:38:1: error: '\U000000a0' does not name a type
38 |
| ^
Main.cpp:44:1: error: '\U000000a0' does not name a type
44 |
| ^
Main.cpp:50:1: error: '\U000000a0' does not name a type
50 |
| ^
Main.cpp:54:1: error: '\U000000a0' does not name a type
54 |
| ^
Main.cpp:67:1: error: '\U000000a0' does not name a type
67 |
| ^
Main.cpp:85:1: error: '\U000000a0' does not name a type
85 |
| ^
Main.cpp:93:1: error: '\U000000a0' does not name a type
93 |
| ^
